WO2014040227A1 - 锡酸盐发光材料及其制备方法 - Google Patents
锡酸盐发光材料及其制备方法 Download PDFInfo
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- WO2014040227A1 WO2014040227A1 PCT/CN2012/081249 CN2012081249W WO2014040227A1 WO 2014040227 A1 WO2014040227 A1 WO 2014040227A1 CN 2012081249 W CN2012081249 W CN 2012081249W WO 2014040227 A1 WO2014040227 A1 WO 2014040227A1
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- WIPO (PCT)
- Prior art keywords
- luminescent material
- stannate
- stannate luminescent
- sol
- preparation
- Prior art date
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- 239000000463 material Substances 0.000 title claims abstract description 81
- 229940071182 stannate Drugs 0.000 title claims abstract description 68
- 125000005402 stannate group Chemical group 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title claims description 35
- 229910052737 gold Inorganic materials 0.000 claims abstract description 26
- 229910052709 silver Inorganic materials 0.000 claims abstract description 26
- 229910052802 copper Inorganic materials 0.000 claims abstract description 24
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 24
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 24
- 229910052688 Gadolinium Inorganic materials 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 6
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 33
- 239000002082 metal nanoparticle Substances 0.000 claims description 28
- 239000000843 powder Substances 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 239000012279 sodium borohydride Substances 0.000 claims description 18
- 229910000033 sodium borohydride Inorganic materials 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 14
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 13
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 13
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 13
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 239000012266 salt solution Substances 0.000 claims description 11
- 239000001509 sodium citrate Substances 0.000 claims description 11
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 11
- 239000004327 boric acid Substances 0.000 claims description 8
- 230000004907 flux Effects 0.000 claims description 8
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 7
- 239000012752 auxiliary agent Substances 0.000 claims description 7
- TVQLLNFANZSCGY-UHFFFAOYSA-N disodium;dioxido(oxo)tin Chemical compound [Na+].[Na+].[O-][Sn]([O-])=O TVQLLNFANZSCGY-UHFFFAOYSA-N 0.000 claims description 7
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 claims description 6
- 239000011668 ascorbic acid Substances 0.000 claims description 6
- 229960005070 ascorbic acid Drugs 0.000 claims description 6
- 235000010323 ascorbic acid Nutrition 0.000 claims description 6
- 238000004381 surface treatment Methods 0.000 claims description 6
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims description 6
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 5
- IOUCSUBTZWXKTA-UHFFFAOYSA-N dipotassium;dioxido(oxo)tin Chemical compound [K+].[K+].[O-][Sn]([O-])=O IOUCSUBTZWXKTA-UHFFFAOYSA-N 0.000 claims description 5
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims description 5
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 claims description 4
- 125000005619 boric acid group Chemical group 0.000 claims description 3
- 229910021645 metal ion Inorganic materials 0.000 claims description 3
- 229940079864 sodium stannate Drugs 0.000 claims description 3
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 2
- 229910001635 magnesium fluoride Inorganic materials 0.000 claims description 2
- 239000002105 nanoparticle Substances 0.000 abstract description 30
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 abstract description 6
- 239000011258 core-shell material Substances 0.000 abstract description 5
- 239000010931 gold Substances 0.000 description 41
- 239000010949 copper Substances 0.000 description 27
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 27
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 27
- 239000000243 solution Substances 0.000 description 19
- 239000007864 aqueous solution Substances 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 239000010944 silver (metal) Substances 0.000 description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 238000001354 calcination Methods 0.000 description 15
- 229910006404 SnO 2 Inorganic materials 0.000 description 13
- 238000004020 luminiscence type Methods 0.000 description 13
- 238000003760 magnetic stirring Methods 0.000 description 12
- 239000002253 acid Substances 0.000 description 11
- 239000008367 deionised water Substances 0.000 description 10
- 229910021641 deionized water Inorganic materials 0.000 description 10
- 238000000227 grinding Methods 0.000 description 9
- 238000005119 centrifugation Methods 0.000 description 7
- 238000001035 drying Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 229910052593 corundum Inorganic materials 0.000 description 6
- 239000010431 corundum Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 239000004570 mortar (masonry) Substances 0.000 description 6
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 238000010532 solid phase synthesis reaction Methods 0.000 description 6
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 5
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 239000002671 adjuvant Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910001961 silver nitrate Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- 229910003771 Gold(I) chloride Inorganic materials 0.000 description 2
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- FDWREHZXQUYJFJ-UHFFFAOYSA-M gold monochloride Chemical compound [Cl-].[Au+] FDWREHZXQUYJFJ-UHFFFAOYSA-M 0.000 description 2
- ICAKDTKJOYSXGC-UHFFFAOYSA-K lanthanum(iii) chloride Chemical compound Cl[La](Cl)Cl ICAKDTKJOYSXGC-UHFFFAOYSA-K 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical compound [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000002198 surface plasmon resonance spectroscopy Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 208000016169 Fish-eye disease Diseases 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 101150003085 Pdcl gene Proteins 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 description 1
- 229910000024 caesium carbonate Inorganic materials 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- FIMTUWGINXDGCK-UHFFFAOYSA-H dibismuth;oxalate Chemical compound [Bi+3].[Bi+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O FIMTUWGINXDGCK-UHFFFAOYSA-H 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 1
- 229910001940 europium oxide Inorganic materials 0.000 description 1
- AEBZCFFCDTZXHP-UHFFFAOYSA-N europium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Eu+3].[Eu+3] AEBZCFFCDTZXHP-UHFFFAOYSA-N 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 238000006197 hydroboration reaction Methods 0.000 description 1
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical compound [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 description 1
- 229910000018 strontium carbonate Inorganic materials 0.000 description 1
- KQAGKTURZUKUCH-UHFFFAOYSA-L strontium oxalate Chemical compound [Sr+2].[O-]C(=O)C([O-])=O KQAGKTURZUKUCH-UHFFFAOYSA-L 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- CVNKFOIOZXAFBO-UHFFFAOYSA-J tin(4+);tetrahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[Sn+4] CVNKFOIOZXAFBO-UHFFFAOYSA-J 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
- 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
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7783—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
- C09K11/7784—Chalcogenides
- C09K11/7787—Oxides
-
- 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
Definitions
- the present invention relates to the field of luminescent materials, and more particularly to a stannate luminescent material and a method of preparing the same. Background technique
- the Field Emission Display is a newly developed flat panel display that works like a conventional cathode ray tube and is imaged by electron beam bombardment of the luminescent material on the display. Compared to other Flat Panel Displays (FPDs), FEDs have potential advantages in terms of brightness, viewing angle, response time, operating temperature range, and energy consumption. Preparation of Good Performance One of the key factors in FED is the preparation of luminescent materials.
- the existing luminescent material has a low strength, and it is difficult to obtain an FED having excellent luminescent properties when it is applied to an FED. Summary of the invention
- a stannate luminescent material having the molecular formula Ln 2 _ x Eu x Sn 2 0 7 @Sn0 2 @M y ,
- Ln is selected from one of Gd, Y and La;
- M is at least one selected from the group consisting of Ag, Au, Pt, Pd, and Cu metal nanoparticles
- y is the ratio of the molar amount of M to the sum of the molar amounts of Sn in Snn and Sn0 2 @My in Ln 2 _ x Eu x Sn 2 0 7 , 0 ⁇ y ⁇ l l0" 2 ;
- lxl (T 5 ⁇ y ⁇ 5x l (T 3 ) A method for preparing a stannate luminescent material, comprising the steps of:
- a sol containing M selected from at least one of Ag, Au, Pt, Pd, and Cu metal nanoparticles
- the surface of the sol containing M is subjected to surface treatment, and the pH of the sol containing M is adjusted to 10-12, and then heated and stirred at 60 to 90 ° C, and sodium stannate, potassium stannate or tin tetrachloride is added. Stirring reaction, centrifugation, drying, calcination at 300 ° C ⁇ 500 ° C for 1 ⁇ 6 hours, to obtain Sn0 2 powder coated with M;
- the step of preparing the sol containing M is:
- a salt solution containing at least one of Ag, Au, Pt, Pd, and Cu is mixed with an auxiliary agent and a reducing agent, and reacted for 10 minutes to 5 minutes to obtain a sol containing M.
- the concentration of the salt solution of at least one of Ag, Au, Pt, Pd, and Cu is 1 X 10 3 3 mol/L to 5 10" 2 mol/L.
- the adjuvant is selected from the group consisting of polyvinylpyrrolidone, sodium citrate, cetyltridecyl ammonium bromide, sodium lauryl sulfate, and sodium lauryl sulfate. At least one of the agents; the concentration of the auxiliary agent in the sol containing M is from 1 x 10 -4 g / mL to 5 x 10 -2 g / mL.
- the reducing agent is at least one selected from the group consisting of hydrazine hydrate, ascorbic acid, sodium citrate, and sodium borohydride; and the reducing agent and the Ag, Au, Pt, Pd, and Cu
- the molar ratio of metal ions in the at least one salt solution is 3.6:1 to 18:1.
- the fluxing agent is boric acid or magnesium fluoride.
- the molar amount of the flux is from 0.01% to 5% by mole of the stannate luminescent material.
- the stannate luminescent material is a core of at least one of Ag, Au, Pt, Pd and Cu metal nanoparticles, Sn0 2 is an inner shell, and Ln 2 _ x Eu x Sn 2 0 7 is a core-shell of the outer shell. Structure, the metal nanoparticles increase the internal quantum efficiency of the luminescent material, so that the stannate luminescent material has a higher luminescence intensity.
- FIG. 1 is a flow chart showing a method of preparing a stannate luminescent material according to an embodiment
- FIG 2 is a second embodiment Y 1. 9 Eu. . 1 Sn 2 0 7 @Sn0 2 @Au . - 4 stannate luminescent material and Y 1 . 9 Eu uncoated with metal nanoparticles. . 1 Sn 2 0 7 @Sn0 2 Comparison of cathode ray luminescence spectra of luminescent materials at 1.5 kV. detailed description
- the stannate luminescent material of one embodiment has a molecular formula of Ln 2 _ x Eu x Sn 2 0 7 @Sn0 2 @My, wherein Ln is selected from the group consisting of Gd, 4 (Y) and ⁇ (La) One of them;
- M is at least one selected from the group consisting of silver (Ag), gold (Au), platinum (Pt), palladium (Pd), and copper (Cu) metal nanoparticles;
- y is the ratio of the molar amount of M to the sum of the molar amounts of Sn in Sn and Sn0 2 @My in Ln 2 _ x Eu x Sn 2 0 7 , 0 ⁇ ylxl (T 2 , preferably lxl (T 5 ⁇ y ⁇ 5x l (T 3 ;
- the metal nanoparticle M As the core of the stannate luminescent material, the metal nanoparticle M generates a surface plasmon resonance effect to improve the internal quantum efficiency of the stannate luminescent material.
- the stannate Ln 2 Sn 2 0 7 has high chemical stability and high temperature stability, and the Ln 2-x Eu x Sn 2 0 7 shell is doped with Eu in the stannate Ln 2 Sn 2 0 7 , Eu Partially substituted for the stannate complex obtained by Ln, the stannate complex has high stability.
- the divalent Eu ion is an activating ion of the stannate luminescent material, and the tin silicate material emits red light under the action of a voltage.
- the molar ratio of Ln to Eu is 2-x:x, 0 ⁇ x ⁇ 1.5, preferably 0.02 ⁇ x ⁇ 1.0, to ensure formation of one
- the illuminating center is fixed to increase the illuminating intensity, and it can avoid the luminescence quenching caused by the excessive concentration of Eu 2+ .
- the ratio of the molar amount of M to the sum of the molar amounts of Sn in Sn and Sn0 2 @M y in Ln 2 — x Eu x Sn 2 0 7 is y, 0 ⁇ y ⁇ l X 10" 2 , preferably lxl (T 5 ⁇ y ⁇ 5xl (T 3 ) to ensure the surface plasmon resonance effect to improve the internal quantum efficiency of the stannate luminescent material, and to avoid the luminescence quenching caused by the excessive content of M.
- the stannate luminescent material is a core of at least one of Ag, Au, Pt, Pd and Cu metal nanoparticles, Sn0 2 is an inner shell, and Ln 2 _ x Eu x Sn 2 0 7 is a core-shell of the outer shell. Structure, the metal nanoparticles increase the internal quantum efficiency of the luminescent material, so that the stannate luminescent material has a higher luminescence intensity.
- M, Sn0 2 and Ln 2 _ x Eu x Sn 2 0 7 of the stannate luminescent material are all chemically stable substances, so that the luminescent material of the core-shell structure has better stability during use. , can maintain good luminescence performance.
- the stannate luminescent material has high stability and good luminescent properties, and can be widely used in the field of display and illumination. Applying it to a field emission display (FED) can improve the luminescence performance of a field emission display (FED).
- FED field emission display
- a method for preparing a stannate fluorescent material comprises the following steps: Step S110: preparing a sol containing M.
- M is at least one selected from the group consisting of Ag, Au, Pt, Pd, and Cu metal nanoparticles.
- the step of preparing the sol containing M is to mix a salt solution of at least one of Ag, Au, Pt, Pd and Cu, an auxiliary agent and a reducing agent to obtain a sol containing M.
- the reaction time is preferably 10 to 45 minutes under the premise of obtaining a sol containing M.
- the salt solution of Ag, Au, Pt, Pd or Cu is a chloride solution of Ag, Au, Pt, Pd or Cu, a nitrate solution or the like.
- the concentration of the salt solution of Ag, Au, Pt, Pd or Cu is flexibly formulated according to actual needs. It is preferably 1 X 10 3 mol/L to 5 l 0" 2 mol/L.
- the adjuvant is at least one selected from the group consisting of polyvinylpyrrolidone, sodium citrate, cetyltrimethylammonium bromide, sodium lauryl sulfate, and sodium dodecylsulfonate.
- concentration of the adjuvant in the sol containing M is from 1 x 10 -4 g/mL to 5 x 10 -2 g/mL.
- the reducing agent is selected from at least one of hydrazine hydrate, ascorbic acid, sodium citrate, and sodium borohydride.
- the reducing agent is formulated into an aqueous solution having a concentration of Ix10_4 mol/L to 1 mol/L, and then mixed with a salt solution of at least one of Ag, Au, Pt, Pd and Cu and an auxiliary agent for reaction.
- the molar ratio of the reducing agent to the metal ion in the salt solution of at least one of Ag, Au, Pt, Pd and Cu is 3.6:1 to 18:1.
- Ag, Au, Pt, Pd or Cu ions are reduced to Ag, Au, Pt, Pd or Cu metal nanoparticles and dispersed in a solvent to obtain a sol containing M.
- Step S120 Surface treatment of the sol containing M, adjusting the pH of the sol containing M to 10 to 12, and then heating and stirring at 60 to 90 ° C, adding sodium stannate, potassium stannate or tin tetrachloride, stirring The reaction, centrifugation, and drying are calcined at 300 to 500 ° C for 1 to 6 hours to obtain Sn0 2 powder coated with M.
- the M-containing sol obtained in the step S110 is first subjected to surface treatment to form a relatively stable M-coated SnO 2 powder, and the M-coated SnO 2 powder is represented as Sn0 2 @M.
- the step of surface-treating the sol containing M is carried out by adding a sol containing M to a polyvinylpyrrolidone (PVP) aqueous solution having a concentration of 0.005 g/ml to 0.1 g/ml and stirring for 8 to 18 hours.
- PVP polyvinylpyrrolidone
- the time for stirring the reaction is preferably from 1 to 5 hours.
- sodium stannate (Na 2 SnO 3 ), tin S potassium (K 2 SnO 3 ) or tin tetrachloride (SnCl 4 ) is hydrolyzed to form tin hydroxide Sn(OH) 4 , which is then calcined to obtain Sn0 2 .
- Sn0 2 is coated on the surface of M to form Sn0 2 powder coated with M.
- the reaction equation for sodium stannate (Na 2 SnO 3 ) is as follows:
- the reaction mechanism using potassium stannate (K 2 SnO 3 ) is the same as that of sodium stannate (Na 2 SnO 3 ).
- the calcination temperature is 300 ° C to 500 ° C, and the calcination time is 1 to 6 hours.
- Step S130 mixing the stoichiometric ratio of the molecular formula Ln x Eu x Sn 2 0 7 @Sn0 2 @M y
- Ln is selected from one of Gd, Y, and La, 0 ⁇ x ⁇ 1.5
- y is a mole of M.
- the Ln-containing compound is an Ln-containing oxide, carbonate, nitrate, oxalate or chloride.
- the Ln-containing compound may be 4B (Y 2 (C0 3 ) 3 ), yttrium oxide (Y 2 0 3 ) or the like.
- the Eu-containing compound is an oxide containing Eu, a carbonate, a nitrate, an oxalate or a chloride.
- Eu-containing compound may be a carbonate, europium (Eu 2 (C0 3) 3 ), ( europium oxide Eu 2 0 3) and the like.
- a mixture of an Ln-containing compound, an Eu-containing compound, and an M-coated SnO 2 4 is used as a raw material for generating a stannate luminescent material.
- the flux makes the reaction more complete and reduces the reaction temperature, thereby reducing energy consumption.
- a mixture of an Ln-containing compound, an Eu-containing compound, a flux, and a Sn-coated SnO 2 powder is ground to facilitate chemical reaction of each raw material, and a product having a small particle size can be obtained.
- the fluxing agent is boric acid (H 3 B0 3 ) or magnesium fluoride (MgF 2 ).
- the molar amount of the flux is from 0.01% to 5% by mole of the stannate luminescent material.
- Step S140 calcining the ground mixture at 300-500 ° C for 3 to 5 hours, cooling and grinding to obtain a calcined product, and calcining the calcined product at 1200-1400 ° C After 1-24 hours, it is ground after cooling to obtain a stannate luminescent material having a molecular formula of Ln 2 _ x Eu x Sn 2 0 7 @Sn0 2 @My, wherein @ represents coating, and the stannate luminescent material is M As a core, Sn0 2 is an inner shell, and Ln 2-x Eu x Sn 2 0 7 is an outer shell.
- the main function of calcination is to cause a chemical reaction between the components of the raw material to form a matrix having a certain lattice structure, and to cause the activator to enter the matrix, in the interstitial space of the matrix or to replace the lattice atoms.
- the calcination treatment is first performed to facilitate the formation of a crystal lattice upon calcination.
- stannate luminescent material After calcination, it is cooled and ground to obtain a stannate luminescent material. After cooling, it is ground to obtain a stannate luminescent material having a small particle diameter and a relatively uniform particle size distribution.
- the preparation method of the above stannate luminescent material is characterized in that the metal nanoparticle M is used as a core, and Sn0 2 is coated on the surface of M to form an inner shell by a sol method, and then the stannate complex Ln 2 _ x Eu is formed by a high temperature solid phase method. x Sn 2 0 7 was coated on the surface of Sn0 2 to form an outer shell, and a nucleate luminescent material having a core-shell structure was prepared.
- the prepared stannate luminescent material has the advantages of high luminescence intensity, good stability and good luminescence performance.
- the preparation method of the above stannate luminescent material has the advantages of low process, low equipment, no pollution, easy control, industrial production, and broad application prospects. The following are specific examples.
- Strontium carbonate (Y 2 (C0 3 ) 3 ) 0.8856g, cesium carbonate (Eu 2 (CO 3 ) 3 ) 0.0242g, and Pd-coated Sn0 2 powder 0.9042g, boric acid (H 3 ) were weighed stoichiometrically B0 3 ) 0.0077g. All the materials were thoroughly ground in an agate mortar, pre-sintered in a corundum crucible at 400 ° C for 4 h, then cooled to room temperature and thoroughly ground again. Finally, the ground product was calcined at 1200 ° C for 10 h, cooled to room temperature, and after grinding, Y1.98Eu0.02Sn 2 O 7 @SnO 2 @Pd was obtained. - 5 stannate luminescent material.
- Aqueous sodium solution and 10 mL of a concentration of 1 x 1 (T 2 mol / L aqueous solution of ascorbic acid; under magnetic stirring, first add 0.08 mL of aqueous sodium borohydride solution to the aqueous chloroauric acid solution, stir the reaction for 5 min, then go to the aqueous solution of chloroauric acid. Add 3.12mLl l (T 2 mol / L aqueous solution of ascorbic acid, and then continue the reaction for 30min, that is, 20mL Au content of 5 10" 5 mol / L of sol containing Au nanoparticles;
- Strontium oxide (Y 2 0 3 ) 0.5363 g, cerium oxide (Eu 2 0 3 ) 0.0440 g, SnO 2 powder coated with metal nanoparticles Au, and boric acid (H 3 B0 3 ) 0.0077 g were weighed in a stoichiometric ratio. All the materials were thoroughly ground in an agate mortar, pre-sintered at 500 ° C for 3 h in a corundum crucible, then cooled to room temperature and thoroughly ground again. Finally, the ground product was again calcined at 1400 ° C for 5 h, cooled to room temperature, and after grinding, Y 1 . 9 Eu was obtained. . 1 Sn 2 0 7 @Sn0 2 @Au 1() - 4 stannate luminescent material.
- the stannate luminescent material has a higher luminous intensity than the uncoated metal nanoparticles Y 1 . 9 Eu.
- the luminescence intensity of the 1 Sn 2 0 7 @Sn0 2 stannate luminescent material is increased by 40%.
- Example 3 Preparation of Y L5 Euo. 5 Sn 2 0 7 @Sn0 2 @Ag 2 .5xio-4 by high temperature solid phase method
- the pH of the surface treated Pt nanoparticle-containing sol was adjusted to 10.5 with ammonia water, stirred for 5 minutes, then transferred to a 70 °C water bath for constant heating and stirring, and then rapidly added 10 mL of 0.4 mol/L Na under stirring. 2 Sn0 3 solution, followed by stirring for 5h, centrifugation, drying, and calcination at 300 ° C for 4h to obtain Sn0 2 powder coated with metal nanoparticles Pt, namely Sn0 2 @Pt;
- the pH of the surface-treated sol containing Cu nanoparticles is adjusted to 10.5 by NaOH, stirred for 15 minutes, then transferred to a 60 ° C water bath for constant temperature heating and stirring, and then Quickly add 30mL 0.2mol / L Na 2 SnO 3 solution, followed by stirring for lh, centrifugation, drying and calcination at 300 ° C for 5h to obtain Sn0 2 powder coated with metal nanoparticles Cu, namely Sn0 2 @Cu;
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US14/427,348 US20150232755A1 (en) | 2012-09-11 | 2012-09-11 | Stannate luminescent material and preparation method thereof |
JP2015530259A JP5903530B2 (ja) | 2012-09-11 | 2012-09-11 | スズ酸塩発光材料、及び、その製造方法 |
PCT/CN2012/081249 WO2014040227A1 (zh) | 2012-09-11 | 2012-09-11 | 锡酸盐发光材料及其制备方法 |
CN201280075705.9A CN104619813B (zh) | 2012-09-11 | 2012-09-11 | 锡酸盐发光材料及其制备方法 |
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WO2011153692A1 (zh) * | 2010-06-09 | 2011-12-15 | 海洋王照明科技股份有限公司 | 氧化物锡酸盐发光材料及其制备方法 |
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