KR20230172907A - Quantum dot ink composition - Google Patents
Quantum dot ink composition Download PDFInfo
- Publication number
- KR20230172907A KR20230172907A KR1020220073651A KR20220073651A KR20230172907A KR 20230172907 A KR20230172907 A KR 20230172907A KR 1020220073651 A KR1020220073651 A KR 1020220073651A KR 20220073651 A KR20220073651 A KR 20220073651A KR 20230172907 A KR20230172907 A KR 20230172907A
- Authority
- KR
- South Korea
- Prior art keywords
- quantum dot
- ink composition
- dot ink
- weight
- carbon atoms
- Prior art date
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- 239000002096 quantum dot Substances 0.000 title claims abstract description 151
- 239000000203 mixture Substances 0.000 title claims abstract description 98
- 239000004094 surface-active agent Substances 0.000 claims abstract description 56
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 41
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 29
- 239000002904 solvent Substances 0.000 claims abstract description 20
- 125000000753 cycloalkyl group Chemical group 0.000 claims abstract description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 9
- 239000001257 hydrogen Substances 0.000 claims abstract description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 150000001875 compounds Chemical class 0.000 claims description 54
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 16
- 239000011347 resin Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 16
- 239000002270 dispersing agent Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims description 10
- -1 acrylic compound Chemical class 0.000 claims description 10
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003960 organic solvent Substances 0.000 claims description 8
- 239000003446 ligand Substances 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 229910000073 phosphorus hydride Inorganic materials 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 150000003573 thiols Chemical class 0.000 claims description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 4
- 150000001735 carboxylic acids Chemical class 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 16
- 239000013535 sea water Substances 0.000 description 16
- 239000006185 dispersion Substances 0.000 description 11
- 239000000243 solution Substances 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 230000008901 benefit Effects 0.000 description 9
- 238000000354 decomposition reaction Methods 0.000 description 8
- 239000012153 distilled water Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 239000004014 plasticizer Substances 0.000 description 6
- 229920002635 polyurethane Polymers 0.000 description 6
- 239000004814 polyurethane Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- XLLIQLLCWZCATF-UHFFFAOYSA-N 2-methoxyethyl acetate Chemical compound COCCOC(C)=O XLLIQLLCWZCATF-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000007822 coupling agent Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- WWZKQHOCKIZLMA-UHFFFAOYSA-N Caprylic acid Natural products CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 3
- MNQZXJOMYWMBOU-VKHMYHEASA-N D-glyceraldehyde Chemical compound OC[C@@H](O)C=O MNQZXJOMYWMBOU-VKHMYHEASA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 235000011054 acetic acid Nutrition 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- PMBXCGGQNSVESQ-UHFFFAOYSA-N 1-Hexanethiol Chemical compound CCCCCCS PMBXCGGQNSVESQ-UHFFFAOYSA-N 0.000 description 2
- LAIZULYZLIEMOR-UHFFFAOYSA-N 1-phosphorosooctane Chemical compound CCCCCCCCP=O LAIZULYZLIEMOR-UHFFFAOYSA-N 0.000 description 2
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 239000003637 basic solution Substances 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000011258 core-shell material Substances 0.000 description 2
- POLCUAVZOMRGSN-UHFFFAOYSA-N dipropyl ether Chemical compound CCCOCCC POLCUAVZOMRGSN-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 229910021480 group 4 element Inorganic materials 0.000 description 2
- 239000012760 heat stabilizer Substances 0.000 description 2
- 150000002373 hemiacetals Chemical class 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N n-hexanoic acid Natural products CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- AUONHKJOIZSQGR-UHFFFAOYSA-N oxophosphane Chemical compound P=O AUONHKJOIZSQGR-UHFFFAOYSA-N 0.000 description 2
- SUVIGLJNEAMWEG-UHFFFAOYSA-N propane-1-thiol Chemical compound CCCS SUVIGLJNEAMWEG-UHFFFAOYSA-N 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- YBNMDCCMCLUHBL-UHFFFAOYSA-N (2,5-dioxopyrrolidin-1-yl) 4-pyren-1-ylbutanoate Chemical compound C=1C=C(C2=C34)C=CC3=CC=CC4=CC=C2C=1CCCC(=O)ON1C(=O)CCC1=O YBNMDCCMCLUHBL-UHFFFAOYSA-N 0.000 description 1
- RYNQKSJRFHJZTK-UHFFFAOYSA-N (3-methoxy-3-methylbutyl) acetate Chemical compound COC(C)(C)CCOC(C)=O RYNQKSJRFHJZTK-UHFFFAOYSA-N 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical compound CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 description 1
- ZRKMQKLGEQPLNS-UHFFFAOYSA-N 1-Pentanethiol Chemical compound CCCCCS ZRKMQKLGEQPLNS-UHFFFAOYSA-N 0.000 description 1
- UOWSVNMPHMJCBZ-UHFFFAOYSA-N 1-[2-(2-butoxypropoxy)propoxy]butane Chemical compound CCCCOCC(C)OCC(C)OCCCC UOWSVNMPHMJCBZ-UHFFFAOYSA-N 0.000 description 1
- RWNUSVWFHDHRCJ-UHFFFAOYSA-N 1-butoxypropan-2-ol Chemical compound CCCCOCC(C)O RWNUSVWFHDHRCJ-UHFFFAOYSA-N 0.000 description 1
- MNZAKDODWSQONA-UHFFFAOYSA-N 1-dibutylphosphorylbutane Chemical compound CCCCP(=O)(CCCC)CCCC MNZAKDODWSQONA-UHFFFAOYSA-N 0.000 description 1
- RRQYJINTUHWNHW-UHFFFAOYSA-N 1-ethoxy-2-(2-ethoxyethoxy)ethane Chemical compound CCOCCOCCOCC RRQYJINTUHWNHW-UHFFFAOYSA-N 0.000 description 1
- ZIKLJUUTSQYGQI-UHFFFAOYSA-N 1-ethoxy-2-(2-ethoxypropoxy)propane Chemical compound CCOCC(C)OCC(C)OCC ZIKLJUUTSQYGQI-UHFFFAOYSA-N 0.000 description 1
- JOLQKTGDSGKSKJ-UHFFFAOYSA-N 1-ethoxypropan-2-ol Chemical compound CCOCC(C)O JOLQKTGDSGKSKJ-UHFFFAOYSA-N 0.000 description 1
- LIPRQQHINVWJCH-UHFFFAOYSA-N 1-ethoxypropan-2-yl acetate Chemical compound CCOCC(C)OC(C)=O LIPRQQHINVWJCH-UHFFFAOYSA-N 0.000 description 1
- DLMYHUARHITGIJ-UHFFFAOYSA-N 1-ethyl-2-phenylbenzene Chemical group CCC1=CC=CC=C1C1=CC=CC=C1 DLMYHUARHITGIJ-UHFFFAOYSA-N 0.000 description 1
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 1
- ZZSSCCQEJRAFTD-UHFFFAOYSA-N 1-octylphosphonoyloctane Chemical compound CCCCCCCCP(=O)CCCCCCCC ZZSSCCQEJRAFTD-UHFFFAOYSA-N 0.000 description 1
- NDDIKKNFARRUNI-UHFFFAOYSA-N 1-phosphorosopropane Chemical compound CCCP=O NDDIKKNFARRUNI-UHFFFAOYSA-N 0.000 description 1
- VXQBJTKSVGFQOL-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethyl acetate Chemical compound CCCCOCCOCCOC(C)=O VXQBJTKSVGFQOL-UHFFFAOYSA-N 0.000 description 1
- XXXFZKQPYACQLD-UHFFFAOYSA-N 2-(2-hydroxyethoxy)ethyl acetate Chemical compound CC(=O)OCCOCCO XXXFZKQPYACQLD-UHFFFAOYSA-N 0.000 description 1
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 1
- DPBJAVGHACCNRL-UHFFFAOYSA-N 2-(dimethylamino)ethyl prop-2-enoate Chemical compound CN(C)CCOC(=O)C=C DPBJAVGHACCNRL-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- JTXMVXSTHSMVQF-UHFFFAOYSA-N 2-acetyloxyethyl acetate Chemical compound CC(=O)OCCOC(C)=O JTXMVXSTHSMVQF-UHFFFAOYSA-N 0.000 description 1
- QLIBJPGWWSHWBF-UHFFFAOYSA-N 2-aminoethyl methacrylate Chemical compound CC(=C)C(=O)OCCN QLIBJPGWWSHWBF-UHFFFAOYSA-N 0.000 description 1
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- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
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- UADWUILHKRXHMM-UHFFFAOYSA-N 2-ethylhexyl benzoate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1 UADWUILHKRXHMM-UHFFFAOYSA-N 0.000 description 1
- HXDLWJWIAHWIKI-UHFFFAOYSA-N 2-hydroxyethyl acetate Chemical compound CC(=O)OCCO HXDLWJWIAHWIKI-UHFFFAOYSA-N 0.000 description 1
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- CRWNQZTZTZWPOF-UHFFFAOYSA-N 2-methyl-4-phenylpyridine Chemical compound C1=NC(C)=CC(C=2C=CC=CC=2)=C1 CRWNQZTZTZWPOF-UHFFFAOYSA-N 0.000 description 1
- YEYKMVJDLWJFOA-UHFFFAOYSA-N 2-propoxyethanol Chemical compound CCCOCCO YEYKMVJDLWJFOA-UHFFFAOYSA-N 0.000 description 1
- WYYQKWASBLTRIW-UHFFFAOYSA-N 2-trimethoxysilylbenzoic acid Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1C(O)=O WYYQKWASBLTRIW-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QMYGFTJCQFEDST-UHFFFAOYSA-N 3-methoxybutyl acetate Chemical compound COC(C)CCOC(C)=O QMYGFTJCQFEDST-UHFFFAOYSA-N 0.000 description 1
- VATRWWPJWVCZTA-UHFFFAOYSA-N 3-oxo-n-[2-(trifluoromethyl)phenyl]butanamide Chemical compound CC(=O)CC(=O)NC1=CC=CC=C1C(F)(F)F VATRWWPJWVCZTA-UHFFFAOYSA-N 0.000 description 1
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- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- AWQSAIIDOMEEOD-UHFFFAOYSA-N 5,5-Dimethyl-4-(3-oxobutyl)dihydro-2(3H)-furanone Chemical compound CC(=O)CCC1CC(=O)OC1(C)C AWQSAIIDOMEEOD-UHFFFAOYSA-N 0.000 description 1
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- LPEKGGXMPWTOCB-UHFFFAOYSA-N 8beta-(2,3-epoxy-2-methylbutyryloxy)-14-acetoxytithifolin Natural products COC(=O)C(C)O LPEKGGXMPWTOCB-UHFFFAOYSA-N 0.000 description 1
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- 239000011230 binding agent Substances 0.000 description 1
- WQAQPCDUOCURKW-UHFFFAOYSA-N butanethiol Chemical compound CCCCS WQAQPCDUOCURKW-UHFFFAOYSA-N 0.000 description 1
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- OIWOHHBRDFKZNC-UHFFFAOYSA-N cyclohexyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1CCCCC1 OIWOHHBRDFKZNC-UHFFFAOYSA-N 0.000 description 1
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- 229910052805 deuterium Inorganic materials 0.000 description 1
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- 229940093499 ethyl acetate Drugs 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
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- AZHPCFQBBJISDG-UHFFFAOYSA-N ethyl(oxido)phosphanium Chemical compound CC[PH2]=O AZHPCFQBBJISDG-UHFFFAOYSA-N 0.000 description 1
- SBRXLTRZCJVAPH-UHFFFAOYSA-N ethyl(trimethoxy)silane Chemical compound CC[Si](OC)(OC)OC SBRXLTRZCJVAPH-UHFFFAOYSA-N 0.000 description 1
- JLHMVTORNNQCRM-UHFFFAOYSA-N ethylphosphine Chemical compound CCP JLHMVTORNNQCRM-UHFFFAOYSA-N 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- MNWFXJYAOYHMED-UHFFFAOYSA-M heptanoate Chemical compound CCCCCCC([O-])=O MNWFXJYAOYHMED-UHFFFAOYSA-M 0.000 description 1
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- 238000007641 inkjet printing Methods 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- AZQGFVRDZTUHBU-UHFFFAOYSA-N isocyanic acid;triethoxy(propyl)silane Chemical compound N=C=O.CCC[Si](OCC)(OCC)OCC AZQGFVRDZTUHBU-UHFFFAOYSA-N 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
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- BDJSOPWXYLFTNW-UHFFFAOYSA-N methyl 3-methoxypropanoate Chemical compound COCCC(=O)OC BDJSOPWXYLFTNW-UHFFFAOYSA-N 0.000 description 1
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- HXZSFRJGDPGVNY-UHFFFAOYSA-N methyl(oxido)phosphanium Chemical compound C[PH2]=O HXZSFRJGDPGVNY-UHFFFAOYSA-N 0.000 description 1
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- QJAOYSPHSNGHNC-UHFFFAOYSA-N octadecane-1-thiol Chemical compound CCCCCCCCCCCCCCCCCCS QJAOYSPHSNGHNC-UHFFFAOYSA-N 0.000 description 1
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- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 235000021313 oleic acid Nutrition 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
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- WEYHWRWGAACKIL-UHFFFAOYSA-N pentylphosphane Chemical compound CCCCCP WEYHWRWGAACKIL-UHFFFAOYSA-N 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- QIWKUEJZZCOPFV-UHFFFAOYSA-N phenyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1=CC=CC=C1 QIWKUEJZZCOPFV-UHFFFAOYSA-N 0.000 description 1
- WRAQQYDMVSCOTE-UHFFFAOYSA-N phenyl prop-2-enoate Chemical compound C=CC(=O)OC1=CC=CC=C1 WRAQQYDMVSCOTE-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
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- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- UDEWPOVQBGFNGE-UHFFFAOYSA-N propyl benzoate Chemical compound CCCOC(=O)C1=CC=CC=C1 UDEWPOVQBGFNGE-UHFFFAOYSA-N 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 229940116423 propylene glycol diacetate Drugs 0.000 description 1
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 description 1
- NNOBHPBYUHDMQF-UHFFFAOYSA-N propylphosphine Chemical compound CCCP NNOBHPBYUHDMQF-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 description 1
- 239000004054 semiconductor nanocrystal Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- OCGWQDWYSQAFTO-UHFFFAOYSA-N tellanylidenelead Chemical compound [Pb]=[Te] OCGWQDWYSQAFTO-UHFFFAOYSA-N 0.000 description 1
- TUQOTMZNTHZOKS-UHFFFAOYSA-N tributylphosphine Chemical compound CCCCP(CCCC)CCCC TUQOTMZNTHZOKS-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- RMZAYIKUYWXQPB-UHFFFAOYSA-N trioctylphosphane Chemical compound CCCCCCCCP(CCCCCCCC)CCCCCCCC RMZAYIKUYWXQPB-UHFFFAOYSA-N 0.000 description 1
- ITHPEWAHFNDNIO-UHFFFAOYSA-N triphosphane Chemical compound PPP ITHPEWAHFNDNIO-UHFFFAOYSA-N 0.000 description 1
- 229910052722 tritium Inorganic materials 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/56—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing sulfur
- C09K11/562—Chalcogenides
- C09K11/565—Chalcogenides with zinc cadmium
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/88—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing selenium, tellurium or unspecified chalcogen elements
- C09K11/881—Chalcogenides
- C09K11/883—Chalcogenides with zinc or cadmium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
본 발명은 양자점 잉크 조성물에 관한 것으로, 본 발명의 실시예에 따르면 양자점 잉크 조성물은 양자점, 하기 화학식 1로 표시되는 계면활성제 및 용매를 포함한다.
[화학식 1]
상기 화학식 1에서, R1 및 R3은 각각 독립적으로 탄소수 1 내지 10의 선형 알킬기, 탄소수 3 내지 10의 분지형 알킬기 및 탄소수 3 내지 10의 사이클로알킬기 중에서 선택되고, R2는 수소, 탄소수 1 내지 10의 선형 알킬기, 탄소수 3 내지 10의 분지형 알킬기 및 탄소수 3 내지 10의 사이클로알킬기 중에서 선택되고, n은 1 내지 10의 정수이며, m은 1 내지 3의 정수이다. The present invention relates to a quantum dot ink composition, and according to an embodiment of the present invention, the quantum dot ink composition includes quantum dots, a surfactant represented by the following formula (1), and a solvent.
[Formula 1]
In Formula 1, R 1 and R 3 are each independently selected from a linear alkyl group with 1 to 10 carbon atoms, a branched alkyl group with 3 to 10 carbon atoms, and a cycloalkyl group with 3 to 10 carbon atoms, and R 2 is hydrogen and 1 to 10 carbon atoms. It is selected from linear alkyl groups of 10, branched alkyl groups of 3 to 10 carbon atoms, and cycloalkyl groups of 3 to 10 carbon atoms, n is an integer of 1 to 10, and m is an integer of 1 to 3.
Description
본 발명은 양자점 잉크 조성물에 대한 것으로서, 보다 상세하게는, 분산성 및 분산 안정성이 우수한 양자점 잉크 조성물에 관한 것이다.The present invention relates to a quantum dot ink composition, and more specifically, to a quantum dot ink composition with excellent dispersibility and dispersion stability.
양자점(quantum dot)은 나노 크기의 결정 구조를 가진 반도체 재료로서, 높은 색순도, 유기물 대비 우수한 광 안정성 및 열 안정성, 밴드갭 조절의 용이성을 지닌 물질이다. 이러한 양자점은 크기가 작기 때문에 단위 부피당 표면적이 넓고, 양자 구속(quantum confinement) 효과를 나타내므로 반도체 물질 자체의 특성과는 다른 물리화학적 특성을 가진다. 양자점은 여기원(excitation source)으로부터 광을 흡수하여 에너지 여기 상태로 되고, 양자점의 에너지 밴드갭에 해당하는 에너지를 방출하게 된다. 양자점은 나노 결정의 크기 및 조성을 조절함에 의해 에너지 밴드갭의 조절이 가능하고 색순도가 높은 발광 특성을 가지고 있으므로, 디스플레이 소자, 에너지 소자 또는 생체 발광 소자 등으로의 다양한 응용 개발이 이루어지고 있다. 구체적으로, 양자점은 용액공정을 통해 양자점 필름으로 제공될 수 있으며, 이러한 양자점 필름은 표시 장치의 유기 발광층, 컬러필터층, 광변환층 등으로 활용될 수 있다. Quantum dots are a semiconductor material with a nano-sized crystal structure and have high color purity, excellent light and thermal stability compared to organic materials, and ease of bandgap adjustment. Because these quantum dots are small, they have a large surface area per unit volume and exhibit a quantum confinement effect, so they have physical and chemical properties that are different from those of the semiconductor material itself. Quantum dots absorb light from an excitation source, enter an energy excited state, and emit energy corresponding to the energy band gap of the quantum dot. Since quantum dots can control the energy band gap by adjusting the size and composition of nanocrystals and have light-emitting properties with high color purity, they are being developed for various applications such as display devices, energy devices, or bioluminescent devices. Specifically, quantum dots can be provided as quantum dot films through a solution process, and these quantum dot films can be used as organic light-emitting layers, color filter layers, light conversion layers, etc. in display devices.
그러나, 양자점은 재료 자체의 표면 특성으로 인해 소수성이 높은 일부 바인더나 용매에 분산되어 사용가능한 분산 매질이 제한적이고, 광학적 특성을 일정 수준이상 확보하기 위해서는 조성물 중 양자점의 함량을 증량시켜야 하나 분산 한계로 양자점의 농도를 증가시키는데 어려움이 있었다.However, due to the surface characteristics of the material itself, quantum dots are dispersed in some highly hydrophobic binders or solvents, so the usable dispersion medium is limited. In order to secure optical properties above a certain level, the content of quantum dots in the composition must be increased, but due to dispersion limitations, There was difficulty in increasing the concentration of quantum dots.
본 발명의 목적은 양자점의 분산성 및 분산 안정성을 향상시키는 것을 목적으로 합니다. The purpose of the present invention is to improve the dispersibility and dispersion stability of quantum dots.
또한, 본 발명은 넓은 pH 범위 내에서 분해되지 않고 화학적으로 안정한 계면활성제를 도입하여 다양한 물질과의 조합이 가능하도록 함으로써 양자점 잉크 조성물의 적용을 확장시키는 것을 목적으로 한다. In addition, the present invention aims to expand the application of quantum dot ink compositions by introducing a chemically stable surfactant that does not decompose within a wide pH range and enabling combination with various materials.
또한, 본 발명은 해수에 의해 인체 및 환경에 무해한 성분으로 쉽게 분해될 수 있는 계면활성제를 도입하여 종래 대비 친환경적인 양자점 잉크 조성물을 제공하는 것을 목적으로 한다. In addition, the present invention aims to provide a quantum dot ink composition that is more environmentally friendly than the prior art by introducing a surfactant that can be easily decomposed by seawater into components harmless to the human body and the environment.
본 발명의 과제들은 이상에서 언급한 과제들로 제한되지 않으며, 언급되지 않은 또 다른 과제들은 아래의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.
본 발명의 일 실시예에 따른 양자점 잉크 조성물은 양자점, 하기 화학식 1로 표시되는 계면활성제 및 용매를 포함한다. The quantum dot ink composition according to an embodiment of the present invention includes quantum dots, a surfactant represented by the following formula (1), and a solvent.
[화학식 1][Formula 1]
상기 화학식 1에서, R1 및 R3은 각각 독립적으로 탄소수 1 내지 10의 선형 알킬기, 탄소수 3 내지 10의 분지형 알킬기 및 탄소수 3 내지 10의 사이클로알킬기 중에서 선택되고, R2는 수소, 탄소수 1 내지 10의 선형 알킬기, 탄소수 3 내지 10의 분지형 알킬기 및 탄소수 3 내지 10의 사이클로알킬기 중에서 선택되고, n은 1 내지 10의 정수이며, m은 1 내지 3의 정수이다. In Formula 1, R 1 and R 3 are each independently selected from a linear alkyl group with 1 to 10 carbon atoms, a branched alkyl group with 3 to 10 carbon atoms, and a cycloalkyl group with 3 to 10 carbon atoms, and R 2 is hydrogen and 1 to 10 carbon atoms. It is selected from linear alkyl groups of 10, branched alkyl groups of 3 to 10 carbon atoms, and cycloalkyl groups of 3 to 10 carbon atoms, n is an integer of 1 to 10, and m is an integer of 1 to 3.
기타 실시예의 구체적인 사항들은 상세한 설명 및 도면들에 포함되어 있다.Specific details of other embodiments are included in the detailed description and drawings.
본 발명의 일 실시예에 따른 양자점 잉크 조성물은 신규 계면활성제의 도입으로 양자점의 분산성 및 분산 안정성이 향상된 효과를 제공한다. 이에 본 발명의 양자점 잉크 조성물로 제조된 양자점 필름은 광학적 특성이 우수한 이점이 있다. The quantum dot ink composition according to an embodiment of the present invention provides improved dispersibility and dispersion stability of quantum dots by introducing a new surfactant. Accordingly, the quantum dot film manufactured with the quantum dot ink composition of the present invention has the advantage of excellent optical properties.
또한, 본 발명의 일 실시예에 따른 양자점 잉크 조성물은 넓은 pH 범위 내에서 분해되지 않고 화학적으로 안정한 계면활성제의 도입으로 다양한 물질과의 조합하여도 안정적으로 물성을 유지할 수 있으며, 이에 따라 양자점 잉크 조성물의 적용을 보다 확장시키는데 기여한다. In addition, the quantum dot ink composition according to an embodiment of the present invention is capable of stably maintaining physical properties even when combined with various materials by introducing a chemically stable surfactant that does not decompose within a wide pH range, and thus the quantum dot ink composition Contributes to further expanding the application of
또한, 본 발명의 일 실시예에 따른 양자점 잉크 조성물은 해수에 의해 인체 및 환경에 무해한 성분으로 쉽게 분해될 수 있는 계면활성제를 포함하여, 친환경적인 양자점 잉크 조성물을 제공할 수 있다. In addition, the quantum dot ink composition according to an embodiment of the present invention contains a surfactant that can be easily decomposed by seawater into components that are harmless to the human body and the environment, and can provide an environmentally friendly quantum dot ink composition.
본 발명에 따른 효과는 이상에서 예시된 내용에 의해 제한되지 않으며, 더욱 다양한 효과들이 본 발명 내에 포함되어 있다.The effects according to the present invention are not limited to the details exemplified above, and further various effects are included within the present invention.
본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나, 본 발명은 이하에서 개시되는 실시예들에 제한되는 것이 아니라 서로 다른 다양한 형상으로 구현될 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다.The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms, and only the present embodiments make the disclosure of the present invention complete, and are known to those skilled in the art in the technical field to which the present invention pertains. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.
본 발명을 설명함에 있어서, 관련된 공지 기술에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명은 생략한다. 본 발명 상에서 언급된 '포함한다', '갖는다', '이루어진다' 등이 사용되는 경우 '~만'이 사용되지 않는 이상 다른 부분이 추가될 수 있다. 구성 요소를 단수로 표현한 경우에 특별히 명시적인 기재 사항이 없는 한 복수를 포함하는 경우를 포함한다.In describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. When 'comprises', 'has', 'consists of', etc. mentioned in the present invention are used, other parts may be added unless 'only' is used. When a component is expressed in the singular, the plural is included unless specifically stated otherwise.
구성 요소를 해석함에 있어서, 별도의 명시적 기재가 없더라도 오차 범위를 포함하는 것으로 해석한다. When interpreting a component, it is interpreted to include the margin of error even if there is no separate explicit description.
본 발명의 여러 실시예들의 각각 특징들이 부분적으로 또는 전체적으로 서로 결합 또는 조합 가능하고, 기술적으로 다양한 연동 및 구동이 가능하며, 각 실시예들이 서로에 대하여 독립적으로 실시 가능할 수도 있고 연관 관계로 함께 실시할 수도 있다.Each feature of the various embodiments of the present invention can be combined or combined with each other, partially or entirely, and various technological interconnections and operations are possible, and each embodiment can be implemented independently of each other or together in a related relationship. It may be possible.
본원 명세서에서 '치환'은 원화합물의 수소 원자 또는 일부 원자단이 치환기로 치환된 것을 의미한다. In the present specification, 'substitution' means that a hydrogen atom or some atomic group of the original compound is replaced with a substituent.
본원 명세서 전체에서, 화합물의 수소 원자는 동위 원소인 경수소, 중수소 및 삼중수소 중 선택된 것으로 치환될 수 있다. Throughout this specification, the hydrogen atoms of the compounds may be replaced with a selection of the isotopes light hydrogen, deuterium, and tritium.
본원의 일 실시예에 따른 양자점 잉크 조성물은 양자점, 계면활성제 및 용매를 포함하고, 계면활성제는 하기 화학식 1로 표시되는 화합물이다. The quantum dot ink composition according to an example of the present application includes quantum dots, a surfactant, and a solvent, and the surfactant is a compound represented by the following formula (1).
[화학식 1][Formula 1]
화학식 1에서, R1 및 R3은 각각 독립적으로 탄소수 1 내지 10의 선형 알킬기, 탄소수 3 내지 10의 분지형 알킬기 및 탄소수 3 내지 10의 사이클로알킬기 중에서 선택될 수 있다.In Formula 1, R 1 and R 3 may each independently be selected from a linear alkyl group having 1 to 10 carbon atoms, a branched alkyl group having 3 to 10 carbon atoms, and a cycloalkyl group having 3 to 10 carbon atoms.
화학식 1에서, R2는 수소, 탄소수 1 내지 10의 선형 알킬기, 탄소수 3 내지 10의 분지형 알킬기 및 탄소수 3 내지 10의 사이클로알킬기 중에서 선택될 수 있다. In Formula 1, R 2 may be selected from hydrogen, a linear alkyl group with 1 to 10 carbon atoms, a branched alkyl group with 3 to 10 carbon atoms, and a cycloalkyl group with 3 to 10 carbon atoms.
화학식 1에서 n은 1 내지 10의 정수이고, m은 1 내지 3의 정수이다. In Formula 1, n is an integer from 1 to 10, and m is an integer from 1 to 3.
화학식 1로 표시되는 계면활성제는 친수성 특성과 소수성 특성을 모두 가지며, 이에 양자점이 용매 중에 균일하고 안정적으로 분산될 수 있도록 한다. The surfactant represented by Formula 1 has both hydrophilic and hydrophobic properties, allowing quantum dots to be uniformly and stably dispersed in the solvent.
화학식 1로 표시되는 계면활성제는 화학적으로 안정하여 넓은 pH 범위 내에서 분해되지 않는 이점이 있다. 이에 따라 산성 및 염기성 용액에서 모두에서 안정성이 우수하여 분산안정성을 높게 유지할 수 있다. The surfactant represented by Formula 1 has the advantage of being chemically stable and not decomposed within a wide pH range. Accordingly, it has excellent stability in both acidic and basic solutions, allowing high dispersion stability.
화학식 1로 표시되는 계면활성제는 해수에 의해 쉽게 분해되며, 이의 분해로 형성되는 생성물은 인체 및 환경에 무해하여 친환경적인 이점이 있다. 예를 들어, 화학식 1로 표시되는 계면활성제는 해수에 의해 카르복실산, 글리콜 및 단당류인 글리세르알데하이드로 분해될 수 있으며, 이들 분해 생성물들은 인체 및 환경에 무해하다. 예를 들면, 하기 반응식에서 보는 바와 같이, 계면활성제는 해수에 의해 글리세르알데하이드, 아세트산 및 글리콜로 분해될 수 있습니다. 구체적으로 해수 중 소듐 이온(Na+)의 작용으로 에스터(ester)의 분해가 가속되어 아세트산 및 헤미아세탈(hemiacetal)로 분해된다. 그리고, 헤미아세탈은 글리콜 및 글리세르알데하이드로 분해된다. The surfactant represented by Formula 1 is easily decomposed by seawater, and the products formed from its decomposition are harmless to the human body and the environment, which has the advantage of being environmentally friendly. For example, the surfactant represented by Formula 1 can be decomposed into carboxylic acid, glycol, and glyceraldehyde, a monosaccharide, by seawater, and these decomposition products are harmless to the human body and the environment. For example, as shown in the reaction equation below, surfactants can be decomposed into glyceraldehyde, acetic acid, and glycol by seawater. Specifically, the decomposition of ester is accelerated by the action of sodium ions (Na + ) in seawater and decomposes into acetic acid and hemiacetal. And, hemiacetal is decomposed into glycol and glyceraldehyde.
다른 예로 화학식 1에서 R1은 탄소수 1 내지 10의 선형 알킬기이고, R2는 수소 또는 탄소수 1 내지 10의 선형 알킬기이고, R3은 탄소수 1 내지 3의 선형 알킬기일 수 있고, n 및 m은 각각 독립적으로 1 내지 3의 정수일 수 있다. 이 경우 계면활성제에 의한 분산성 및 분산 안정성 개선 효과가 더욱 우수하다. 이에 따라 양자점 잉크 조성물 중 양자점의 함량을 증량하거나 보다 적은 양의 계면활성제로도 안정적인 분산 상태를 유지할 수 있다. As another example, in Formula 1, R 1 is a linear alkyl group having 1 to 10 carbon atoms, R 2 is hydrogen or a linear alkyl group having 1 to 10 carbon atoms, R 3 may be a linear alkyl group having 1 to 3 carbon atoms, and n and m are each It may independently be an integer from 1 to 3. In this case, the effect of improving dispersibility and dispersion stability by the surfactant is more excellent. Accordingly, a stable dispersion state can be maintained even by increasing the content of quantum dots in the quantum dot ink composition or using a smaller amount of surfactant.
보다 구체적으로 예를 들어, 계면활성제는 하기 화학식 2로 표시되는 화합물일 수 있다.More specifically, for example, the surfactant may be a compound represented by the following formula (2).
[화학식 2][Formula 2]
계면활성제는 양자점 잉크 조성물 100중량%에 대해 3중량% 내지 25중량%, 3중량% 내지 15중량% 또는 3중량% 내지 10중량%로 포함될 수 있다. 이 범위 내에서 양자점의 분산성 및 분산 안정성이 우수하다. The surfactant may be included in an amount of 3% to 25% by weight, 3% to 15% by weight, or 3% to 10% by weight based on 100% by weight of the quantum dot ink composition. Within this range, the dispersibility and dispersion stability of quantum dots are excellent.
양자점은 이원소, 삼원소 또는 사원소로 구성된 반도체 나노 결정일 수 있다. 예를 들어, 양자점은 II족-VI족 화합물, III족-V족 화합물, IV족-VI족 화합물, IV족 원소 또는 화합물, I족-IIIVI족 화합물 및 I-II-IV-VI족 화합물 중에서 선택되는 1종 이상일 수 있다. Quantum dots may be semiconductor nanocrystals composed of binary, ternary or quaternary elements. For example, quantum dots can be selected from among Group II-VI compounds, Group III-V compounds, Group IV-VI compounds, Group IV elements or compounds, Group I-IIIVI compounds, and Group I-II-IV-VI compounds. There may be one or more types selected.
예를 들어, II-VI족 화합물은 CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe, MgS, CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, CdZnSe, CdZnTe, CdHgS, CdHgSe, CdHgTe, HgZnS, HgZnSe, HgZnTe, MgZnSe, MgZnS, HgZnTeS, CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe, HgZnSTe 등으로부터 선택될 수 있다.For example, Group II-VI compounds include CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe, MgS, CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, CdZnSe, CdZnTe, CdHgS, CdHgSe, CdHgTe, HgZnS, HgZnSe, HgZnTe, MgZnSe, MgZnS, HgZnTeS, CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, Hg It may be selected from ZnSeTe, HgZnSTe, etc.
예를 들어, III-V족 화합물은 GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, InSb, GaNP, GaNAs, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InNP, InNAs, InNSb, InPAs, InPSb, GaAlNP, GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, InAlPSb, InZnP 등으로부터 선택될 수 있다. For example, group III-V compounds include GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, InSb, GaNP, GaNAs, GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, Can be selected from AlPAs, AlPSb, InNP, InNAs, InNSb, InPAs, InPSb, GaAlNP, GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, InAlPSb, InZnP, etc. there is.
예를 들어, IV-VI족 화합물은 SnS, SnSe, SnTe, PbS, PbSe, PbTe, SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, SnPbTe, SnPbSSe, SnPbSeTe, SnPbSTe 등으로부터 선택될 수 있다. For example, group IV-VI compounds can be selected from SnS, SnSe, SnTe, PbS, PbSe, PbTe, SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, SnPbTe, SnPbSSe, SnPbSeTe, SnPbSTe, etc. there is.
예를 들어, I족-III족-VI족 화합물은 CuInSe2, CuInS2, CuInGaSe, CuInGaS 등으로부터 선택될 수 있다. For example, the group I-III-VI compound may be selected from CuInSe 2 , CuInS 2 , CuInGaSe, CuInGaS, etc.
예를 들어, I족-II족-IV족-VI족 화합물은 CuZnSnSe, CuZnSnS 등으로부터 선택될 수 있다. For example, the Group I-II-IV-VI compound may be selected from CuZnSnSe, CuZnSnS, etc.
예를 들어, IV족 원소 또는 화합물은 Si, Ge, SiC, SiGe 등으로부터 선택될 수 있다. For example, the group IV element or compound may be selected from Si, Ge, SiC, SiGe, etc.
양자점은 코어-쉘 구조를 가질 수 있으며, 이 경우 양자점의 물리적/화학적 안정성이 우수하고, 광학적인 특성이 우수한 이점이 있다. 양자점이 코어-쉘 구조를 가지는 경우, 쉘은 2층 이상의 다중층으로 형성될 수 있다. 이때 각각의 쉘은 동일성분으로 이루어질 수 있고, 서로 상이한 성분으로 이루어질 수도 있다. Quantum dots may have a core-shell structure, and in this case, the quantum dots have the advantage of excellent physical/chemical stability and excellent optical properties. When the quantum dot has a core-shell structure, the shell may be formed of two or more layers. At this time, each shell may be made of the same ingredients or may be made of different ingredients.
예를 들어, 양자점의 직경은 1nm 내지 100nm일 수 있으나 이에 제한되지 않고, 목적하는 광학적 특성을 갖도록 적절히 조절할 수 있다. For example, the diameter of the quantum dot may be 1 nm to 100 nm, but is not limited thereto, and may be appropriately adjusted to have desired optical properties.
양자점은 표면에 리간드가 결합될 수 있다. 리간드는 양자점을 물리/화학적으로 보호하고, 양자점이 조성물 중에 보다 안정적으로 분산될 수 있도록 한다. Quantum dots can have ligands bound to their surfaces. The ligand protects the quantum dots physically/chemically and allows the quantum dots to be more stably dispersed in the composition.
예를 들어, 리간드는 티올계 화합물 및 카르복시산계 화합물 중에서 선택되는 1종 이상일 수 있다. For example, the ligand may be one or more types selected from thiol-based compounds and carboxylic acid-based compounds.
예를 들면, 티올계 화합물은 화학식 R-SH로 표시될 수 있고, 이때 R은 탄소수 5 내지 30의 치환 또는 비치환의 지방족 탄화수소기 또는 탄소수 6 내지 30의 치환 또는 비치환의 방향족 탄화수소기일 수 있다. For example, a thiol-based compound may be represented by the formula R-SH, where R may be a substituted or unsubstituted aliphatic hydrocarbon group having 5 to 30 carbon atoms or a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms.
구체적으로 예를 들어, 티올계 화합물은 메탄 티올, 에탄 티올, 프로판 티올, 부탄 티올, 펜탄 티올, 헥산 티올, 옥탄 티올, 도데칸 티올, 헥사데칸 티올, 옥타데칸 티올, 벤질 티올 등으로부터 선택될 수 있다. Specifically, for example, the thiol-based compound may be selected from methane thiol, ethane thiol, propane thiol, butane thiol, pentane thiol, hexane thiol, octane thiol, dodecane thiol, hexadecane thiol, octadecane thiol, benzyl thiol, etc. there is.
구체적으로 예를 들어, 카르복시산계 화합물은 포름산, 아세트산, 프로판산, 부탄산, 펜탄산, 헥산산, 헵탄산, 옥탄산, 도데칸산, 헥사데칸산, 옥타데칸산, 올레인산(oleic acid), 벤조산 등으로부터 선택될 수 있다. Specifically, carboxylic acid compounds include formic acid, acetic acid, propanoic acid, butanoic acid, pentanoic acid, hexanoic acid, heptanoic acid, octanoic acid, dodecanoic acid, hexadecanoic acid, octadecanoic acid, oleic acid, and benzoic acid. etc. may be selected.
양자점은 양자점 잉크 조성물 100중량%에 대해 3중량% 내지 40중량%, 3중량% 내지 30중량% 또는 3중량% 내지 20중량%로 포함될 수 있다. 이 범위 내에서 양자점이 균일하게 분산될 수 있고, 광학적 특성 또한 우수하다.Quantum dots may be included in an amount of 3% to 40% by weight, 3% to 30% by weight, or 3% to 20% by weight based on 100% by weight of the quantum dot ink composition. Within this range, quantum dots can be uniformly dispersed and the optical properties are also excellent.
용매는 유기 용매, 물 또는 이들의 혼합물일 수 있다. The solvent may be an organic solvent, water, or a mixture thereof.
예를 들어, 유기 용매는 글리콜계 화합물, 아세테이트계 화합물 및 방향족 탄화수소계 화합물 중에서 선택되는 1종 이상일 수 있다. For example, the organic solvent may be one or more selected from glycol-based compounds, acetate-based compounds, and aromatic hydrocarbon-based compounds.
구체적으로 예를 들어, 글리콜계 화합물은 에틸렌글리콜모노메틸에테르, 에틸렌글리콜모노에틸에테르, 에틸렌글리콜모노프로필에테르, 에틸렌글리콜모노부틸에테르, 디에틸렌글리콜디메틸에테르, 디에틸렌글리콜디에틸에테르, 디에틸렌글리콜디프로필에테르, 디에틸렌글리콜디부틸에테르, 프로필렌글리콜모노메틸에테르, 프로필렌글리콜모노에틸에테르, 프로필렌글리콜모노프로필에테르, 프로필렌글리콜모노부틸에테르, 디프로필렌글리콜디메틸에테르, 디프로필렌글리콜디에틸에테르, 디프로필렌글리콜디프로필에테르, 디프로필렌글리콜디부틸에테르 등으로부터 선택될 수 있다. Specifically, glycol-based compounds include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, and diethylene glycol. Dipropyl ether, diethylene glycol dibutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, dipropylene glycol dimethyl ether, dipropylene glycol diethyl ether, dipropylene It may be selected from glycol dipropyl ether, dipropylene glycol dibutyl ether, etc.
구체적으로 예를 들어, 아세테이트계 화합물은 3-에톡시프로피온산에틸, 3-메톡시프로피온산메틸, 메틸셀로솔브아세테이트, 에틸셀로솔브아세테이트, 에틸아세테이트, 부틸아세테이트, 아밀아세테이트, 메틸락테이트, 에틸락테이트, 부틸락테이트, 디에틸 셀로솔브 아세테이트, 3-메톡시부틸아세테이트, 3-메틸-3-메톡시-1-부틸아세테이트, 메톡시펜틸아세테이트, 에틸렌글리콜모노아세테이트, 에틸렌글리콜디아세테이트, 에틸렌글리콜모노메틸에테르아세테이트, 에틸렌글리콜모노에틸에테르아세테이트, 디에틸렌글리콜모노아세테이트, 디에틸렌글리콜디아세테이트, 디에틸렌글리콜모노부틸에테르아세테이트, 프로필렌글리콜모노아세테이트, 프로필렌글리콜디아세테이트, 프로필렌글리콜모노메틸에테르아세테이트, 프로필렌글리콜모노에틸에테르아세테이트, 에틸렌카보네이트, 프로필렌카보네이트, γ부티로락톤 등으로부터 선택될 수 있다. Specifically, acetate-based compounds include ethyl 3-ethoxypropionate, methyl 3-methoxypropionate, methyl cellosolve acetate, ethyl cellosolve acetate, ethyl acetate, butyl acetate, amyl acetate, methyl lactate, and ethyl. Lactate, butyl lactate, diethyl cellosolve acetate, 3-methoxybutyl acetate, 3-methyl-3-methoxy-1-butyl acetate, methoxypentyl acetate, ethylene glycol monoacetate, ethylene glycol diacetate, ethylene Glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, diethylene glycol monoacetate, diethylene glycol diacetate, diethylene glycol monobutyl ether acetate, propylene glycol monoacetate, propylene glycol diacetate, propylene glycol monomethyl ether acetate, It may be selected from propylene glycol monoethyl ether acetate, ethylene carbonate, propylene carbonate, γ-butyrolactone, etc.
구체적으로 예를 들어, 방향족 탄화수소계 화합물은 톨루엔, 자일렌, 에틸메틸 벤조에이트, 에틸헥실 벤조에이트, 에틸바이페닐 등으로부터 선택될 수 있다. Specifically, for example, the aromatic hydrocarbon compound may be selected from toluene, xylene, ethylmethyl benzoate, ethylhexyl benzoate, ethylbiphenyl, etc.
예를 들어, 용매는 물 및 이와 극성이 상이한 유기 용매의 혼합일 수 있으며, 이 경우 물 대 유기 용매는 2:1 내지 1:2의 중량비로 혼합될 수 있으나, 이에 제한되지 않는다. For example, the solvent may be a mixture of water and an organic solvent having a different polarity. In this case, the water to organic solvent may be mixed at a weight ratio of 2:1 to 1:2, but is not limited thereto.
용매는 양자점 잉크 조성물 100중량%에 대해 35중량% 내지 80중량%, 35중량% 내지 70중량%, 40중량% 내지 65중량% 또는 50중량% 내지 65중량%로 포함될 수 있다. 이 범위 내에서 양자점 잉크 조성물의 점도가 너무 높지 않아 취급 및 사용이 용이하다. The solvent may be included in an amount of 35% to 80% by weight, 35% to 70% by weight, 40% to 65% by weight, or 50% to 65% by weight based on 100% by weight of the quantum dot ink composition. Within this range, the viscosity of the quantum dot ink composition is not too high, making it easy to handle and use.
양자점 잉크 조성물은 분산제를 포함할 수 있다. 분산제는 양자점의 분산성과 안정성을 보다 향상시켜줄 수 있다. The quantum dot ink composition may include a dispersant. Dispersants can further improve the dispersibility and stability of quantum dots.
예를 들어, 분산제는 포스핀계 화합물 및 아크릴계 화합물 중에서 선택되는 1종 이상일 수 있다. For example, the dispersant may be at least one selected from phosphine-based compounds and acrylic-based compounds.
예를 들면, 포스핀계 화합물은 메틸 포스핀, 에틸 포스핀, 프로필 포스핀, 부틸 포스핀, 펜틸 포스핀, 옥틸포스핀, 디옥틸 포스핀, 트리부틸포스핀, 트리옥틸포스핀 등으로부터 선택될 수 있다. 다른 예로 포스핀계 화합물은 이의 유도체인 포스핀 옥사이드일 수 있다. 예를 들어, 포스핀 옥사이드는 메틸 포스핀 옥사이드, 에틸 포스핀 옥사이드, 프로필 포스핀 옥사이드, 부틸 포스핀 옥사이드 펜틸 포스핀옥사이드, 트리부틸포스핀옥사이드, 옥틸 포스핀 옥사이드, 디옥틸 포스핀옥사이드, 트리옥틸포스핀옥사이드 등으로부터 선택될 수 있다. For example, the phosphine-based compound may be selected from methyl phosphine, ethyl phosphine, propyl phosphine, butyl phosphine, pentyl phosphine, octyl phosphine, dioctyl phosphine, tributyl phosphine, trioctyl phosphine, etc. You can. As another example, the phosphine-based compound may be its derivative, phosphine oxide. For example, phosphine oxide includes methyl phosphine oxide, ethyl phosphine oxide, propyl phosphine oxide, butyl phosphine oxide, pentyl phosphine oxide, tributyl phosphine oxide, octyl phosphine oxide, dioctyl phosphine oxide, and tri-phosphine oxide. It may be selected from octylphosphine oxide and the like.
예를 들면, 아크릴계 화합물은 메틸메타 아크릴레이트, 에틸 아크릴레이트, 에틸 메타크릴레이트, 부틸 아크릴레이트, 부틸 메타크릴레이트, 벤질 아크릴레이트, 벤질 메타크릴레이트, 시클로헥실 아크릴레이트, 시클로헥실 메타크릴레이트, 페닐 아크릴레이트, 페닐 메타크릴레이트, 2-아미노 에틸 아크릴레이트, 2-아미노 에틸 메타크릴레이트, 2-디메틸 아미노 에틸 아크릴레이트, 2-디메틸 아미노 에틸 메타크릴레이트, 아크릴 아미드, 메타크릴 아미드 등으로부터 선택될 수 있다.For example, acrylic compounds include methyl methacrylate, ethyl acrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate, benzyl acrylate, benzyl methacrylate, cyclohexyl acrylate, cyclohexyl methacrylate, Choose from phenyl acrylate, phenyl methacrylate, 2-amino ethyl acrylate, 2-amino ethyl methacrylate, 2-dimethyl amino ethyl acrylate, 2-dimethyl amino ethyl methacrylate, acryl amide, methacryl amide, etc. It can be.
분산제는 양자점 잉크 조성물 100중량%에 대해 0.1중량% 내지 10중량% 또는 0.5중량% 내지 5중량%로 포함될 수 있다. 이 범위 내에서 양자점의 분산성과 안정성이 더욱 우수하다. The dispersant may be included in an amount of 0.1% to 10% by weight or 0.5% to 5% by weight based on 100% by weight of the quantum dot ink composition. Within this range, the dispersion and stability of quantum dots are superior.
양자점 잉크 조성물은 레진을 포함할 수 있다. 레진은 양자점 잉크 조성물의 점도를 조절하기 위해 첨가될 수 있고, 양자점 잉크 조성물을 이용하여 양자점 필름을 형성하는 것을 용이하게 할 수 있다. The quantum dot ink composition may include resin. Resin may be added to adjust the viscosity of the quantum dot ink composition and may facilitate forming a quantum dot film using the quantum dot ink composition.
예를 들어, 레진은 폴리에틸렌, 우레탄 수지, 불소 수지, 아크릴 수지, 에폭시 수지, 실리콘 수지 등으로부터 선택되는 1종 이상일 수 있으나, 이에 제한되지 않는다. 예를 들어, 불소 수지는 폴리테트라플루오로에틸렌일 수 있으나, 이에 제한되지 않는다. 바람직하게 레진은 폴리에틸렌, 우레탄 수지 및 불소 수지 중에서 선택된 1종이거나, 2종을 포함하는 혼합 레진일 수 있다. 예를 들어, 혼합 레진은 폴리우레탄 및 폴리테트라플루오로에틸렌일 수 있으며, 이 경우 양자점의 분산이 용이하고, 양자점 잉크 조성물로 필름을 제조하는 것이 용이하며, 필름의 기계적인 물성이 우수한 이점이 있다. For example, the resin may be one or more selected from polyethylene, urethane resin, fluorine resin, acrylic resin, epoxy resin, silicone resin, etc., but is not limited thereto. For example, the fluororesin may be polytetrafluoroethylene, but is not limited thereto. Preferably, the resin may be one selected from polyethylene, urethane resin, and fluororesin, or a mixed resin containing two types. For example, the mixed resin may be polyurethane and polytetrafluoroethylene. In this case, it is easy to disperse the quantum dots, it is easy to manufacture a film with the quantum dot ink composition, and the mechanical properties of the film are excellent. .
예를 들어 레진은 양자점 잉크 조성물 100중량%에 대해 1중량% 내지 35중량%, 1중량% 내지 20중량% 또는 5중량% 내지 15중량%로 포함될 수 있다. 이 범위 내에서 양자점 필름의 형성이 용이하고, 필름의 기계적인 물성이 우수한 이점이 있다. For example, the resin may be included in an amount of 1% to 35% by weight, 1% to 20% by weight, or 5% to 15% by weight based on 100% by weight of the quantum dot ink composition. Within this range, it is easy to form a quantum dot film and the film has excellent mechanical properties.
양자점 잉크 조성물은 필요에 따라 선택적으로 가소제를 포함할 수 있다. 가소제는 양자점 잉크 조성물로 발광층, 컬러필터층 등의 양자점 필름을 형성할 때 가공성을 향상시키고, 필름에 유연성을 부여하여 기계적인 물성을 향상시킨다. The quantum dot ink composition may optionally include a plasticizer as needed. Plasticizers improve processability when forming quantum dot films such as light-emitting layers and color filter layers with quantum dot ink compositions, and provide flexibility to the films to improve mechanical properties.
예를 들어, 가소제는 양자점 잉크 조성물 100중량%에 대해 0.1중량% 내지 10중량% 또는 3중량% 내지 7중량%로 포함될 수 있으나, 이에 제한되지 않는다. For example, the plasticizer may be included in an amount of 0.1% to 10% by weight or 3% to 7% by weight based on 100% by weight of the quantum dot ink composition, but is not limited thereto.
양자점 잉크 조성물은 필요에 따라 선택적으로 첨가제를 더 포함할 수 있다. 예를 들어, 첨가제는 레벨링제, 커플링제, 광 확산제, 경화제, 산화방지제, 열안정제, 필러 등으로부터 선택된 1종 이상일 수 있으나 이에 제한되지 않는다. The quantum dot ink composition may optionally further include additives as needed. For example, the additive may be one or more selected from leveling agents, coupling agents, light diffusers, curing agents, antioxidants, heat stabilizers, fillers, etc., but is not limited thereto.
레벨링제는 양자점 잉크 조성물의 코팅성을 향상시키고, 레벨링 특성을 개선하여 양자점 필름의 표면 품질을 향상시킬 수 있다. The leveling agent can improve the coating properties of the quantum dot ink composition and improve the leveling characteristics to improve the surface quality of the quantum dot film.
커플링제는 기재와의 밀착성을 향상시킬 수 있다. 예를 들어, 커플링제는 트리메톡시실릴 벤조산, γ메타크릴 옥시프로필 트리메톡시실란, 비닐 트리아세톡시실란, 비닐 트리메톡시실란, γ이소시아네이트 프로필 트리에톡시실란, γ글리시독시 프로필 트리메톡시실란, β에폭시사이클로헥실)에틸트리메톡시실란 등의 실란계 커플링제일 수 있다. A coupling agent can improve adhesion to a substrate. For example, coupling agents include trimethoxysilyl benzoic acid, γ methacryl oxypropyl trimethoxysilane, vinyl triacetoxysilane, vinyl trimethoxysilane, γ isocyanate propyl triethoxysilane, and γ glycidoxy propyl trimethoxysilane. It may be a silane-based coupling agent such as toxysilane or β-epoxycyclohexyl)ethyltrimethoxysilane.
광 확산제는 양자점으로부터 발광된 광을 확산시켜 광학적 특성을 향상시킨다. 예를 들어, 광 확산제는 알루미나, 지르코니아, 티타니아, 산화아연 등의 무기 산화물 입자, 금, 은, 구리 등의 금속 입자, 실리콘이나 폴리메틸메타크릴레이트와 같은 유기 입자 등으로부터 선택될 수 있다. A light diffuser improves optical properties by diffusing light emitted from quantum dots. For example, the light diffuser may be selected from inorganic oxide particles such as alumina, zirconia, titania, and zinc oxide, metal particles such as gold, silver, and copper, and organic particles such as silicon and polymethyl methacrylate.
경화제는 양자점 잉크 조성물의 필름화를 용이하게 하고, 양자점 필름의 기계적인 물성을 개선시킨다. The curing agent facilitates forming the quantum dot ink composition into a film and improves the mechanical properties of the quantum dot film.
산화방지제 및 열안정제는 열이나 UV에 의한 양자점 잉크 조성물의 분해를 방지하고, 저장성을 개선시킨다. Antioxidants and heat stabilizers prevent decomposition of the quantum dot ink composition by heat or UV and improve storage.
필러는 양자점 잉크 조성물로 형성된 필름의 기계적인 물성을 개선시킨다.The filler improves the mechanical properties of the film formed from the quantum dot ink composition.
구체적으로 예를 들어, 본 발명의 일 실시예에 따른 양자점 잉크 조성물은 양자점 3중량% 내지 40중량%, 화학식 1로 표시되는 계면활성제 3중량% 내지 25중량% 및 용매 35중량% 내지 80중량%를 포함할 수 있다. Specifically, for example, the quantum dot ink composition according to an embodiment of the present invention includes 3% to 40% by weight of quantum dots, 3% to 25% by weight of a surfactant represented by Formula 1, and 35% to 80% by weight of a solvent. may include.
다른 예로, 양자점 잉크 조성물은 양자점 3중량% 내지 15중량%, 화학식 1로 표시되는 계면활성제 3중량% 내지 15중량%, 용매 50중량% 내지 80중량% 및 레진 10중량% 내지 35중량%를 포함할 수 있다. As another example, the quantum dot ink composition includes 3% to 15% by weight of quantum dots, 3% to 15% by weight of a surfactant represented by Formula 1, 50% to 80% by weight of solvent, and 10% to 35% by weight of resin. can do.
또 다른 예로 양자점 잉크 조성물은 양자점 3중량% 내지 40중량%, 화학식 1로 표시되는 계면활성제 3중량% 내지 25중량%, 용매 35중량% 내지 80중량% 및 분산제 0.1중량% 내지 10중량%를 포함할 수 있다. As another example, the quantum dot ink composition includes 3% to 40% by weight of quantum dots, 3% to 25% by weight of a surfactant represented by Formula 1, 35% to 80% by weight of solvent, and 0.1% to 10% by weight of a dispersant. can do.
또 다른 예로 양자점 잉크 조성물은 조성물은 양자점 3중량% 내지 40중량%, 화학식 1로 표시되는 계면활성제 3중량% 내지 25중량%, 용매 35중량% 내지 80중량%, 레진 1중량% 내지 35중량% 및 가소제 0.1중량% 내지 10중량%를 포함할 수 있다. As another example, the quantum dot ink composition includes 3% to 40% by weight of quantum dots, 3% to 25% by weight of a surfactant represented by Formula 1, 35% to 80% by weight of solvent, and 1% to 35% by weight of resin. And it may include 0.1% by weight to 10% by weight of a plasticizer.
또 다른 예로 양자점 잉크 조성물은 조성물은 양자점 3중량% 내지 15중량%, 화학식 1로 표시되는 계면활성제 3중량% 내지 20중량%, 용매 40중량% 내지 80중량%, 레진 5중량% 내지 25중량% 및 가소제 1중량% 내지 10중량%를 포함할 수 있다. 이 경우, 해수에 의해 보다 빠르고 쉽게 분해되어 환경친화적인 이점이 있다. As another example, the quantum dot ink composition includes 3% to 15% by weight of quantum dots, 3% to 20% by weight of a surfactant represented by Formula 1, 40% to 80% by weight of solvent, and 5% to 25% by weight of resin. And it may include 1% to 10% by weight of a plasticizer. In this case, it has the advantage of being environmentally friendly as it is decomposed more quickly and easily by seawater.
또 다른 예로 양자점 잉크 조성물은 조성물은 양자점 3중량% 내지 40중량%, 화학식 1로 표시되는 계면활성제 3중량% 내지 25중량%, 용매 35중량% 내지 80중량%, 분산제 0.1중량% 내지 10중량% 및 레진 1중량% 내지 35중량%를 포함할 수 있다. As another example, the quantum dot ink composition includes 3% to 40% by weight of quantum dots, 3% to 25% by weight of a surfactant represented by Formula 1, 35% to 80% by weight of a solvent, and 0.1% to 10% by weight of a dispersant. And it may include 1% to 35% by weight of resin.
본 발명의 실시예에 따른 양자점 잉크 조성물은 화학식 1로 표시되는 계면활성제를 포함하며, 이는 양자점의 분산성 및 분산 안정성을 향상시킨다. 이에 따라 양자점 잉크 조성물 중 양자점의 로딩(loading)양을 증량하여도 양자점이 안정적으로 분산 상태를 유지할 수 있어 광학적 특성 향상에 기여한다. 또한, 보다 적은 양의 계면활성제로도 분산 특성이 뛰어나 계면활성제의 양을 줄일 수 있는 이점이 있다. The quantum dot ink composition according to an embodiment of the present invention includes a surfactant represented by Formula 1, which improves the dispersibility and dispersion stability of the quantum dots. Accordingly, even if the loading amount of quantum dots in the quantum dot ink composition is increased, the quantum dots can maintain a stable dispersed state, contributing to improving optical properties. In addition, there is an advantage in that the amount of surfactant can be reduced due to excellent dispersion properties even with a smaller amount of surfactant.
또한, 화학식 1의 계면활성제는 넓은 pH 범위에서 분해되지 않고 화학적으로 안정하여 산성 또는 염기성 용액 어디에도 적용이 가능한 이점이 있으며, 양자점 잉크 조성물의 응용 분야를 확장시킬 수 있다. In addition, the surfactant of Formula 1 does not decompose in a wide pH range and is chemically stable, so it has the advantage of being applicable to either acidic or basic solutions, and can expand the application field of quantum dot ink compositions.
또한, 화학식 1의 계면활성제는 해수에 의해 쉽게 분해될 수 있으며, 사용 후 처리가 용이하다. 또한 해수에 의해 분해된 생성물들은 인체 및 환경에 무해하여 친환경적인 이점이 있다. In addition, the surfactant of Formula 1 can be easily decomposed by seawater and is easy to dispose of after use. In addition, products decomposed by seawater are harmless to the human body and the environment, which has the advantage of being eco-friendly.
본 발명의 실시예에 따른 양자점 잉크 조성물은 용액 공정을 통해 양자점 필름으로 제조될 수 있다. 예를 들어, 용액 공정은 스핀 코팅(spin coating), 슬릿 코팅(slit coatind), 드롭 캐스팅(drop casting), 딥 캐스팅(dip casting), 잉크젯 프린팅(inkjet printing), 임프린팅(imprinting) 등으로부터 선택된 어느 한 방법으로 수행될 수 있다. The quantum dot ink composition according to an embodiment of the present invention can be manufactured into a quantum dot film through a solution process. For example, solution processes may be selected from spin coating, slit coating, drop casting, dip casting, inkjet printing, imprinting, etc. It can be done in either way.
양자점 잉크 조성물은 용액 공정을 통해 양자점 발광층, 컬러필터층, 광변환층 등으로 다양하게 응용될 수 있다. Quantum dot ink compositions can be used in a variety of ways, such as quantum dot light-emitting layers, color filter layers, and light conversion layers, through a solution process.
이하에서는 본 발명에 따른 양자점 잉크 조성물에 대하여 하기 실시예를 통하여 더 상세하게 설명한다. 그러나, 이는 본 발명의 이해를 돕기 위하여 제시되는 것일 뿐, 본 발명이 하기 실시예로 제한되는 것은 아니다.Hereinafter, the quantum dot ink composition according to the present invention will be described in more detail through the following examples. However, this is only presented to aid understanding of the present invention, and the present invention is not limited to the following examples.
[실시예 1][Example 1]
플라스크에 CdSe/ZnS 양자점 5중량부, 가소제 5중량부, 톨루엔 15중량부, 폴리우레탄 10중량부, 폴리테트라플루오로에틸렌 5중량부, 하기 화학식 2로 표시되는 계면활성제 10중량부 및 증류수 50중량부를 혼합하여 양자점 잉크 조성물을 제조하였다.In a flask, 5 parts by weight of CdSe/ZnS quantum dots, 5 parts by weight of plasticizer, 15 parts by weight of toluene, 10 parts by weight of polyurethane, 5 parts by weight of polytetrafluoroethylene, 10 parts by weight of surfactant represented by the following formula (2), and 50 parts by weight of distilled water. A quantum dot ink composition was prepared by mixing the parts.
[실시예 2][Example 2]
플라스크에 CdSe/ZnS 양자점 5중량부, 톨루엔 30중량부, 증류수 30중량부, 폴리에틸렌 30중량부 및 하기 화학식 2로 표시되는 계면활성제 5중량부를 혼합하여 양자점 잉크 조성물을 제조하였다.A quantum dot ink composition was prepared by mixing 5 parts by weight of CdSe/ZnS quantum dots, 30 parts by weight of toluene, 30 parts by weight of distilled water, 30 parts by weight of polyethylene, and 5 parts by weight of a surfactant represented by the following formula (2) in a flask.
[화학식 2][Formula 2]
[비교예 1][Comparative Example 1]
화학식 2로 표시되는 계면활성제 대신에 하기 화학식 3으로 표시되는 계면활성제를 첨가한 것을 제외하고는 상기 실시예 1과 동일하게 양자점 잉크 조성물을 제조하였다. A quantum dot ink composition was prepared in the same manner as Example 1, except that a surfactant represented by Formula 3 below was added instead of the surfactant represented by Formula 2.
[화학식 3][Formula 3]
[비교예 2][Comparative Example 2]
화학식 2로 표시되는 계면활성제 대신에 하기 화학식 4로 표시되는 계면활성제를 첨가한 것을 제외하고는 상기 실시예 2와 동일하게 양자점 잉크 조성물을 제조하였다. A quantum dot ink composition was prepared in the same manner as Example 2, except that a surfactant represented by Formula 4 below was added instead of the surfactant represented by Formula 2.
[화학식 4][Formula 4]
[실험예 1] [Experimental Example 1]
실시예 1, 2 및 비교예 1, 2 각각에 따른 양자점 잉크 조성물로 해수 분해 실험을 실시하였다. 해수 분해 실험을 위해 35g의 NaCl을 1L의 증류수에 용해시켜 약 0.6M의 NaCl 용액을 준비하였다. 이와 같이 준비된 NaCl 용액에 양자점 잉크 1g을 첨가하고, 1시간에서 3주 동안 보관한 뒤, 역상 액체 크로마토그래피 질량분석기(reverse phase liquid chromatography-mass spectrometer, LC-MS)를 사용하여 분석하였다. LC-MS를 이용하여 계면활성제가 염분에 의해 분해되어 생성된 물질과 관련된 피크와 이 피크의 면적을 측정하였고, 이를 토대로 샘플 중 계면활성제가 해수에 분해되는 정도를 평가하였다. 이때, 10㎕의 샘플을 LC-MS 장비에 주입하였다. 이에 따른 결과를 하기 표 1에 나타내었다. A seawater decomposition experiment was conducted with the quantum dot ink compositions according to Examples 1 and 2 and Comparative Examples 1 and 2, respectively. For the seawater decomposition experiment, 35 g of NaCl was dissolved in 1 L of distilled water to prepare a NaCl solution of approximately 0.6 M. 1 g of quantum dot ink was added to the NaCl solution prepared in this way, stored for 1 hour to 3 weeks, and then analyzed using a reverse phase liquid chromatography-mass spectrometer (LC-MS). Using LC-MS, we measured the peak and area of the peak related to the substance produced when the surfactant was decomposed by salt, and based on this, we evaluated the degree to which the surfactant in the sample was decomposed in seawater. At this time, 10 μl of sample was injected into the LC-MS equipment. The results are shown in Table 1 below.
상기 표 1을 참조하면, 화학식 2로 표시되는 계면활성제를 포함하는 실시예 1의 양자점 잉크 조성물은 해수에 첨가한 뒤, 계면활성제가 3주 후 대부분 분해되나, 비교예 1의 양자점 잉크 조성물에 포함된 계면활성제의 경우 3주 후 분해되는 정도가 10% 미만인 것을 확인할 수 있다. 이로부터 실시예 1의 계면활성제는 비교예 1의 계면활성제 대비 빠르게 해수 분해되는 것을 알 수 있다. Referring to Table 1, after the quantum dot ink composition of Example 1 containing the surfactant represented by Formula 2 was added to seawater, the surfactant was mostly decomposed after 3 weeks, but it was included in the quantum dot ink composition of Comparative Example 1. In the case of the surfactant, it can be seen that the degree of decomposition is less than 10% after 3 weeks. From this, it can be seen that the surfactant of Example 1 is decomposed in seawater faster than the surfactant of Comparative Example 1.
한편, 실시예 1과 동일한 계면활성제를 포함하나, 조성이 상이한 실시예 2의 양자점 잉크 조성물로 해수 분해 실험을 한 결과, 앞서 실시예 1 과 비교예 1에 대해 살펴본 것과 동등한 결과를 얻었다. 구체적으로 상기 표 1을 참조하면, 화학식 2로 표시되는 계면활성제를 포함하는 실시예 2의 양자점 잉크 조성물은 비교예 화학식 4로 표시되는 계면활성제를 포함하는 비교예 2의 양자점 잉크 조성물 대비 해수에 의해 빠르고 쉽게 분해되는 것을 확인할 수 있다. Meanwhile, as a result of a seawater decomposition experiment with the quantum dot ink composition of Example 2, which contained the same surfactant as Example 1 but had a different composition, results equivalent to those previously examined for Example 1 and Comparative Example 1 were obtained. Specifically, referring to Table 1, the quantum dot ink composition of Example 2 containing a surfactant represented by Formula 2 was compared to the quantum dot ink composition of Comparative Example 2 containing a surfactant represented by Formula 4 by seawater. You can see that it disassembles quickly and easily.
[실험예 2] [Experimental Example 2]
실시예 1 및 비교예 1 각각에 따른 양자점 잉크 조성물의 pH 안정성을 평가하였다. 먼저, 하기 표 2에 기재된 조건으로 pH가 조절된 용액을 각각 1L씩 준비하였다. 각각의 용액에 양자점 잉크 조성물 1g을 첨가하고, 200rpm으로 교반한 뒤, 1주일 동안 보관하였다. 이와 같이 준비된 샘플의 pH 안정성을 역상 액체 크로마토그래피 질량분석기(reverse phase liquid chromatography-mass spectrometer, LC-MS)를 사용하여 분석하였다. 이때, 10㎕의 샘플을 LC-MS 장비에 주입하였다. LC-MS 분석을 통해 분해된 계면활성제의 함량을 측정하였다. 이에 따른 결과를 하기 표 2에 나타내었다. The pH stability of the quantum dot ink compositions according to Example 1 and Comparative Example 1 was evaluated. First, 1 L of each solution whose pH was adjusted under the conditions shown in Table 2 below was prepared. 1 g of quantum dot ink composition was added to each solution, stirred at 200 rpm, and stored for 1 week. The pH stability of the sample prepared in this way was analyzed using reverse phase liquid chromatography-mass spectrometer (LC-MS). At this time, 10 μl of sample was injected into the LC-MS equipment. The content of decomposed surfactant was measured through LC-MS analysis. The results are shown in Table 2 below.
상기 표 2를 참조하면, 실시예 1 및 비교예 1에 따른 양자점 잉크 조성물 각각은 pH가 7인 중성 상태에서는 분해되지 않으나, pH가 8 이상인 범위에서 분해되는 확인할 수 있다. 그러나, 실시예 1의 양자점 잉크 조성물은 pH가 13으로 매우 높은 조건에서도 10% 미만으로 분해되는 반면에 비교예 1에 따른 양자점 잉크 조성물은 pH 9인 경우 80% 가량 분해가 일어나고, pH 11 이상인 경우 대부분이 분해되는 것을 확인할 수 있다. Referring to Table 2, it can be confirmed that each of the quantum dot ink compositions according to Example 1 and Comparative Example 1 does not decompose in a neutral state where the pH is 7, but decomposes in the range where the pH is 8 or higher. However, the quantum dot ink composition of Example 1 decomposes by less than 10% even at very high pH conditions of 13, while the quantum dot ink composition according to Comparative Example 1 decomposes by about 80% at pH 9, and when pH is 11 or higher. You can see that most of it is decomposed.
이로부터, 실시예 1의 양자점 잉크 조성물은 pH 7 내지 13의 넓은 pH 범위에서 쉽게 분해되지 않아 안정성이 우수한 것을 확인할 수 있다. From this, it can be seen that the quantum dot ink composition of Example 1 is not easily decomposed in a wide pH range of pH 7 to 13 and has excellent stability.
[실험예 3] [Experimental Example 3]
실시예 1의 양자점 잉크 조성물 제조 시 사용된 화학식 2의 계면활성제와 비교예 1의 양자점 잉크 조성물 제조 시 사용된 화학식 3의 계면활성제 각각의 혼화성(miscible)을 평가하였다. 증류수 10g 및 폴리우레탄 10g을 혼합하여 제조된 용액에 하기 표 3과 같은 농도로 계면활성제를 첨가하고 250rpm에서 1시간 동안 교반하였다. 교반 후, 용액의 상태를 육안으로 관찰하여 혼화성을 평가하였다. 증류수와 폴리우레탄이 층분리없이 완전히 섞인 상태인 경우 miscible, 약간의 층분리가 관찰되면 partially miscible, 뚜렷하게 층분리가 관찰되는 경우 immiscible로 평가하였다. 이에 따른 결과를 하기 표 3에 나타내었다. The miscibility of the surfactant of Formula 2 used in preparing the quantum dot ink composition of Example 1 and the surfactant of Formula 3 used in preparing the quantum dot ink composition of Comparative Example 1 was evaluated. A surfactant was added at the concentration shown in Table 3 below to a solution prepared by mixing 10 g of distilled water and 10 g of polyurethane, and stirred at 250 rpm for 1 hour. After stirring, the state of the solution was visually observed to evaluate miscibility. If distilled water and polyurethane were completely mixed without layer separation, it was evaluated as miscible, if slight layer separation was observed, it was evaluated as partially miscible, and if clear layer separation was observed, it was evaluated as immiscible. The results are shown in Table 3 below.
상기 표 3을 참조하면, 실시예 1은 화학식 2의 계면활성제의 함량이 5%일 때, 증류수와 폴리우레탄을 혼화가 일어나기 시작하고, 10% 이상일 경우 완전히 혼화되는 것을 확인할 수 있다. 반면에 비교예 1은 화학식 3의 계면활성제 함량이 25%인 경우에 증류수와 폴리우레탄을 완전히 혼화시키고, 함량이 15% 이하일 때는 두 물질이 혼화되지 못하는 것을 확인할 수 있다. Referring to Table 3, it can be seen that in Example 1, when the content of the surfactant of Formula 2 is 5%, distilled water and polyurethane begin to mix, and when it is 10% or more, they are completely mixed. On the other hand, in Comparative Example 1, when the surfactant content of Chemical Formula 3 was 25%, distilled water and polyurethane were completely mixed, and when the content was 15% or less, the two substances were not miscible.
이로부터 본 발명의 일 실시예에 따른 화학식 2로 표시되는 계면활성제는 친수성 물질과 소수성 물질을 잘 혼합시키며, 이를 양자점 잉크 조성물에 첨가할 시 양자점을 보다 균일하게 분산시킬 수 있음을 알 수 있다.From this, it can be seen that the surfactant represented by Formula 2 according to an embodiment of the present invention mixes hydrophilic materials and hydrophobic materials well, and when added to the quantum dot ink composition, quantum dots can be dispersed more uniformly.
본 발명의 다양한 실시예들에 따른 양자점 잉크 조성물은 다음과 같이 설명될 수 있다. Quantum dot ink compositions according to various embodiments of the present invention can be described as follows.
본 발명의 일 실시예에 따른 양자점 잉크 조성물은 양자점, 하기 화학식 1로 표시되는 계면활성제 및 용매를 포함한다. The quantum dot ink composition according to an embodiment of the present invention includes quantum dots, a surfactant represented by the following formula (1), and a solvent.
[화학식 1][Formula 1]
(화학식 1에서, R1 및 R3은 각각 독립적으로 탄소수 1 내지 10의 선형 알킬기, 탄소수 3 내지 10의 분지형 알킬기 및 탄소수 3 내지 10의 사이클로알킬기 중에서 선택되고, R2는 수소, 탄소수 1 내지 10의 선형 알킬기, 탄소수 3 내지 10의 분지형 알킬기 및 탄소수 3 내지 10의 사이클로알킬기 중에서 선택되고, n은 1 내지 10의 정수이며, m은 1 내지 3의 정수이다)(In Formula 1, R 1 and R 3 are each independently selected from a linear alkyl group having 1 to 10 carbon atoms, a branched alkyl group having 3 to 10 carbon atoms, and a cycloalkyl group having 3 to 10 carbon atoms, and R 2 is hydrogen, having 1 to 1 carbon atoms. selected from linear alkyl groups of 10, branched alkyl groups of 3 to 10 carbon atoms, and cycloalkyl groups of 3 to 10 carbon atoms, n is an integer of 1 to 10, and m is an integer of 1 to 3.
본 발명의 일 특징에 따르면, 화학식 1에서 R1은 탄소수 1 내지 10의 선형 알킬기이고, R2는 수소 또는 탄소수 1 내지 10의 선형 알킬기이고, R3은 탄소수 1 내지 3의 선형 알킬기이며, n 및 m은 각각 독립적으로 1 내지 3의 정수일 수 있다. According to one feature of the present invention, in Formula 1, R 1 is a linear alkyl group having 1 to 10 carbon atoms, R 2 is hydrogen or a linear alkyl group having 1 to 10 carbon atoms, R 3 is a linear alkyl group having 1 to 3 carbon atoms, and n and m may each independently be an integer of 1 to 3.
본 발명의 다른 특징에 따르면, 계면활성제는 양자점 잉크 조성물 100중량%에 대해 3중량% 내지 25중량%의 양으로 포함될 수 있다. According to another feature of the present invention, the surfactant may be included in an amount of 3% to 25% by weight based on 100% by weight of the quantum dot ink composition.
본 발명의 또 다른 특징에 따르면, 양자점은 양자점 잉크 조성물 100중량%에 대해 3중량% 내지 40중량%의 양으로 포함될 수 있다. According to another feature of the present invention, quantum dots may be included in an amount of 3% to 40% by weight based on 100% by weight of the quantum dot ink composition.
본 발명의 또 다른 특징에 따르면, 양자점은 II족-VI족 화합물, III족-V족 화합물, IV족-VI족 화합물, IV족 화합물, I족-IIIVI족 화합물 및 I-II-IV-VI족 화합물 중에서 선택되는 1종 이상일 수 있다. According to another feature of the present invention, quantum dots include Group II-VI compounds, Group III-V compounds, Group IV-VI compounds, Group IV compounds, Group I-IIIVI compounds and Group I-II-IV-VI. It may be one or more types selected from the group compounds.
본 발명의 또 다른 특징에 따르면, 양자점은 표면에 리간드가 결합될 수 있다. According to another feature of the present invention, quantum dots can have ligands bound to their surfaces.
본 발명의 또 다른 특징에 따르면, 리간드는 티올계 화합물 및 카르복시산계 화합물 중에서 선택되는 1종 이상일 수 있다. According to another feature of the present invention, the ligand may be at least one selected from thiol-based compounds and carboxylic acid-based compounds.
본 발명의 또 다른 특징에 따르면, 용매는 양자점 잉크 조성물 100중량%에 대해 35중량% 내지 80중량%로 포함될 수 있다. According to another feature of the present invention, the solvent may be included in an amount of 35% to 80% by weight based on 100% by weight of the quantum dot ink composition.
본 발명의 또 다른 특징에 따르면, 용매는 유기 용매, 물 또는 이들의 혼합일 수 있다. According to another feature of the present invention, the solvent may be an organic solvent, water, or a mixture thereof.
본 발명의 또 다른 특징에 따르면, 유기 용매는 글리콜계 화합물, 아세테이트계 화합물 및 방향족 탄화수소계 화합물 중에서 선택되는 1종 이상일 수 있다. According to another feature of the present invention, the organic solvent may be one or more selected from glycol-based compounds, acetate-based compounds, and aromatic hydrocarbon-based compounds.
본 발명의 또 다른 특징에 따르면, 양자점 잉크 조성물은 분산제를 더 포함할 수 있다. According to another feature of the present invention, the quantum dot ink composition may further include a dispersant.
본 발명의 또 다른 특징에 따르면, 분산제는 포스핀계 화합물 및 아크릴계 화합물 중에서 선택되는 1종 이상일 수 있다. According to another feature of the present invention, the dispersant may be at least one selected from phosphine-based compounds and acrylic-based compounds.
본 발명의 또 다른 특징에 따르면, 분산제는 양자점 잉크 조성물 100중량%에 대해 0.1중량% 내지 10중량%로 포함될 수 있다. According to another feature of the present invention, the dispersant may be included in an amount of 0.1% to 10% by weight based on 100% by weight of the quantum dot ink composition.
본 발명의 또 다른 특징에 따르면, 양자점 잉크 조성물 100중량%에 대해 1중량% 내지 35중량%의 레진을 더 포함할 수 있다. According to another feature of the present invention, the quantum dot ink composition may further include 1% to 35% by weight of resin based on 100% by weight.
본 발명의 또 다른 특징에 따르면, 레진은 폴리에틸렌, 우레탄 수지 및 불소 수지 중에서 선택된 1종 이상을 포함할 수 있다. According to another feature of the present invention, the resin may include one or more selected from polyethylene, urethane resin, and fluororesin.
이상에서 본 발명을 실시예를 통하여 상세하게 설명하였으나, 본 발명은 반드시 이러한 실시예로 국한되는 것은 아니고, 본 발명의 기술사상을 벗어나지 않는 범위 내에서 다양하게 변형실시될 수 있다. 따라서, 본 발명에 개시된 실시예들은 본 발명의 기술 사상을 제한하기 위한 것이 아니라 설명하기 위한 것이고, 이러한 실시예에 의하여 본 발명의 기술 사상의 범위가 제한되는 것은 아니다. 그러므로, 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며 제한적이 아닌 것으로 이해해야만 한다. 본 발명의 보호 범위는 아래의 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술 사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.Although the present invention has been described in detail through examples above, the present invention is not necessarily limited to these examples, and may be implemented in various modifications without departing from the technical spirit of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.
Claims (15)
[화학식 1]
상기 화학식 1에서,
R1 및 R3은 각각 독립적으로 탄소수 1 내지 10의 선형 알킬기, 탄소수 3 내지 10의 분지형 알킬기 및 탄소수 3 내지 10의 사이클로알킬기 중에서 선택되고,
R2는 수소, 탄소수 1 내지 10의 선형 알킬기, 탄소수 3 내지 10의 분지형 알킬기 및 탄소수 3 내지 10의 사이클로알킬기 중에서 선택되고,
n은 1 내지 10의 정수이며, m은 1 내지 3의 정수이다.A quantum dot ink composition comprising quantum dots, a surfactant represented by the following formula (1), and a solvent.
[Formula 1]
In Formula 1,
R 1 and R 3 are each independently selected from a linear alkyl group having 1 to 10 carbon atoms, a branched alkyl group having 3 to 10 carbon atoms, and a cycloalkyl group having 3 to 10 carbon atoms,
R 2 is selected from hydrogen, a linear alkyl group with 1 to 10 carbon atoms, a branched alkyl group with 3 to 10 carbon atoms, and a cycloalkyl group with 3 to 10 carbon atoms,
n is an integer from 1 to 10, and m is an integer from 1 to 3.
상기 화학식 1에서 R1은 탄소수 1 내지 10의 선형 알킬기이고, R2는 수소 또는 탄소수 1 내지 10의 선형 알킬기이고,
R3은 탄소수 1 내지 3의 선형 알킬기이며,
n 및 m은 각각 독립적으로 1 내지 3의 정수인, 양자점 잉크 조성물.According to paragraph 1,
In Formula 1, R 1 is a linear alkyl group having 1 to 10 carbon atoms, R 2 is hydrogen or a linear alkyl group having 1 to 10 carbon atoms,
R 3 is a linear alkyl group having 1 to 3 carbon atoms,
A quantum dot ink composition wherein n and m are each independently an integer of 1 to 3.
상기 계면활성제는 상기 양자점 잉크 조성물 100중량%에 대해 3중량% 내지 25중량%의 양으로 포함되는, 양자점 잉크 조성물. According to paragraph 1,
The surfactant is included in an amount of 3% to 25% by weight based on 100% by weight of the quantum dot ink composition.
상기 양자점은 상기 양자점 잉크 조성물 100중량%에 대해 3중량% 내지 40중량%의 양으로 포함되는, 양자점 잉크 조성물.According to paragraph 1,
The quantum dots are included in an amount of 3% to 40% by weight based on 100% by weight of the quantum dot ink composition.
상기 양자점은 II족-VI족 화합물, III족-V족 화합물, IV족-VI족 화합물, IV족 화합물, I족-IIIVI족 화합물 및 I-II-IV-VI족 화합물 중에서 선택되는 1종 이상인, 양자점 잉크 조성물. According to paragraph 1,
The quantum dot is one or more types selected from Group II-VI compounds, Group III-V compounds, Group IV-VI compounds, Group IV compounds, Group I-IIIVI compounds, and Group I-II-IV-VI compounds. , quantum dot ink composition.
상기 양자점은 표면에 리간드가 결합된, 양자점 잉크 조성물.According to paragraph 1,
The quantum dot is a quantum dot ink composition in which a ligand is bound to the surface.
상기 리간드는 티올계 화합물 및 카르복시산계 화합물 중에서 선택되는 1종 이상인, 양자점 잉크 조성물.According to clause 6,
A quantum dot ink composition wherein the ligand is at least one selected from thiol-based compounds and carboxylic acid-based compounds.
상기 용매는 상기 양자점 잉크 조성물 100중량%에 대해 35중량% 내지 80중량%로 포함되는, 양자점 잉크 조성물.According to paragraph 1,
The solvent is included in an amount of 35% by weight to 80% by weight based on 100% by weight of the quantum dot ink composition.
상기 용매는 유기 용매, 물 또는 이들의 혼합인, 양자점 잉크 조성물.According to paragraph 1,
Quantum dot ink composition wherein the solvent is an organic solvent, water, or a mixture thereof.
상기 유기 용매는 글리콜계 화합물, 아세테이트계 화합물 및 방향족 탄화수소계 화합물 중에서 선택되는 1종 이상인, 양자점 잉크 조성물.According to clause 9,
A quantum dot ink composition wherein the organic solvent is at least one selected from glycol-based compounds, acetate-based compounds, and aromatic hydrocarbon-based compounds.
분산제를 더 포함하는 양자점 잉크 조성물.According to paragraph 1,
A quantum dot ink composition further comprising a dispersant.
상기 분산제는 포스핀계 화합물 및 아크릴계 화합물 중에서 선택되는 1종 이상인, 양자점 잉크 조성물.According to clause 11,
A quantum dot ink composition wherein the dispersant is at least one selected from a phosphine-based compound and an acrylic compound.
상기 분산제는 상기 양자점 잉크 조성물 100중량%에 대해 0.1중량% 내지 10중량%로 포함되는, 양자점 잉크 조성물. According to clause 11,
The dispersant is included in an amount of 0.1% by weight to 10% by weight based on 100% by weight of the quantum dot ink composition.
상기 양자점 잉크 조성물 100중량%에 대해 1중량% 내지 35중량%의 레진을 더 포함하는 양자점 잉크 조성물. According to paragraph 1,
A quantum dot ink composition further comprising 1% to 35% by weight of resin based on 100% by weight of the quantum dot ink composition.
상기 레진은 폴리에틸렌, 우레탄 수지 및 불소 수지 중에서 선택된 1종 이상을 포함하는 양자점 잉크 조성물. According to clause 14,
The resin is a quantum dot ink composition comprising at least one selected from polyethylene, urethane resin, and fluororesin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020220073651A KR102681502B1 (en) | 2022-06-16 | Quantum dot ink composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020220073651A KR102681502B1 (en) | 2022-06-16 | Quantum dot ink composition |
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| Publication Number | Publication Date |
|---|---|
| KR20230172907A true KR20230172907A (en) | 2023-12-26 |
| KR102681502B1 KR102681502B1 (en) | 2024-07-04 |
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