JP6815602B2 - 量子ドット - Google Patents
量子ドット Download PDFInfo
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- JP6815602B2 JP6815602B2 JP2016213980A JP2016213980A JP6815602B2 JP 6815602 B2 JP6815602 B2 JP 6815602B2 JP 2016213980 A JP2016213980 A JP 2016213980A JP 2016213980 A JP2016213980 A JP 2016213980A JP 6815602 B2 JP6815602 B2 JP 6815602B2
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- zno
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- quantum dots
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- 239000002096 quantum dot Substances 0.000 title claims description 46
- 239000002245 particle Substances 0.000 claims description 74
- 239000010410 layer Substances 0.000 claims description 66
- 239000000203 mixture Substances 0.000 claims description 54
- 239000004065 semiconductor Substances 0.000 claims description 23
- 239000002344 surface layer Substances 0.000 claims description 12
- 150000004767 nitrides Chemical class 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 26
- 238000006243 chemical reaction Methods 0.000 description 23
- 239000002994 raw material Substances 0.000 description 21
- 239000013078 crystal Substances 0.000 description 20
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical class OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 18
- 238000000034 method Methods 0.000 description 15
- 229910052757 nitrogen Inorganic materials 0.000 description 14
- 239000002243 precursor Substances 0.000 description 12
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 11
- 230000002194 synthesizing effect Effects 0.000 description 11
- 230000015572 biosynthetic process Effects 0.000 description 10
- 238000003786 synthesis reaction Methods 0.000 description 10
- 239000011701 zinc Substances 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 229910052984 zinc sulfide Inorganic materials 0.000 description 8
- 229910052733 gallium Inorganic materials 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000011259 mixed solution Substances 0.000 description 7
- 239000002105 nanoparticle Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 5
- 238000004729 solvothermal method Methods 0.000 description 5
- XIOUDVJTOYVRTB-UHFFFAOYSA-N 1-(1-adamantyl)-3-aminothiourea Chemical compound C1C(C2)CC3CC2CC1(NC(=S)NN)C3 XIOUDVJTOYVRTB-UHFFFAOYSA-N 0.000 description 4
- 239000007810 chemical reaction solvent Substances 0.000 description 4
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- CHPZKNULDCNCBW-UHFFFAOYSA-N gallium nitrate Chemical compound [Ga+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O CHPZKNULDCNCBW-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 3
- 239000011258 core-shell material Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- MFGOFGRYDNHJTA-UHFFFAOYSA-N 2-amino-1-(2-fluorophenyl)ethanol Chemical compound NCC(O)C1=CC=CC=C1F MFGOFGRYDNHJTA-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 2
- HUCVOHYBFXVBRW-UHFFFAOYSA-M caesium hydroxide Inorganic materials [OH-].[Cs+] HUCVOHYBFXVBRW-UHFFFAOYSA-M 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- FYWVTSQYJIPZLW-UHFFFAOYSA-K diacetyloxygallanyl acetate Chemical compound [Ga+3].CC([O-])=O.CC([O-])=O.CC([O-])=O FYWVTSQYJIPZLW-UHFFFAOYSA-K 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 229940044658 gallium nitrate Drugs 0.000 description 2
- UPWPDUACHOATKO-UHFFFAOYSA-K gallium trichloride Chemical compound Cl[Ga](Cl)Cl UPWPDUACHOATKO-UHFFFAOYSA-K 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- KLRHPHDUDFIRKB-UHFFFAOYSA-M indium(i) bromide Chemical compound [Br-].[In+] KLRHPHDUDFIRKB-UHFFFAOYSA-M 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000005476 size effect Effects 0.000 description 2
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004246 zinc acetate Substances 0.000 description 2
- 239000011592 zinc chloride Substances 0.000 description 2
- 235000005074 zinc chloride Nutrition 0.000 description 2
- DKIDEFUBRARXTE-UHFFFAOYSA-N 3-mercaptopropanoic acid Chemical compound OC(=O)CCS DKIDEFUBRARXTE-UHFFFAOYSA-N 0.000 description 1
- 229910021617 Indium monochloride Inorganic materials 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- XOYLJNJLGBYDTH-UHFFFAOYSA-M chlorogallium Chemical compound [Ga]Cl XOYLJNJLGBYDTH-UHFFFAOYSA-M 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- APHGZSBLRQFRCA-UHFFFAOYSA-M indium(1+);chloride Chemical compound [In]Cl APHGZSBLRQFRCA-UHFFFAOYSA-M 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- AFRJJFRNGGLMDW-UHFFFAOYSA-N lithium amide Chemical compound [Li+].[NH2-] AFRJJFRNGGLMDW-UHFFFAOYSA-N 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 1
- YUKQRDCYNOVPGJ-UHFFFAOYSA-N thioacetamide Chemical compound CC(N)=S YUKQRDCYNOVPGJ-UHFFFAOYSA-N 0.000 description 1
- DLFVBJFMPXGRIB-UHFFFAOYSA-N thioacetamide Natural products CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 1
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- Led Device Packages (AREA)
Description
再び合成容器42を加熱する。合成容器42内の混合溶液の温度が200℃になる直前に、チオ尿素濃度が異なるものが充填された別の原料供給容器に収容される原料溶液を、合成容器42に注入する。2回目の原料供給容器内のチオ尿素濃度は1回目より濃いものを用いる。これを複数回繰り返すことで、半径方向の外側に向かってSの組成比が連続的に増加するZnOS層を形成することができる。
Claims (5)
- Gaを含むZnOから形成される中心部、及び、ZnOSから形成され、前記中心部を被覆する表層部であって、該中心部から離れるにしたがってSの組成比が増加する表層部、を含む下地粒子と、
窒化物半導体から形成され、前記下地粒子を被覆する半導体層と、
を有する量子ドット。 - 前記表層部は、前記中心部から離れるにしたがってSの組成比が段階的に増加する請求項1記載の量子ドット。
- 前記表層部は、前記中心部から離れるにしたがってSの組成比が連続的に増加する請求項1記載の量子ドット。
- 前記下地粒子の最表層を構成する部材と前記半導体層を構成する部材は、格子整合する請求項1〜3いずれか1項記載の量子ドット。
- Gaを含むZnOから形成される中心部と、
ZnOSから形成され、前記中心部を被覆し、該中心部から離れるにしたがってSの組成比が増加する表層部と、
を有する量子ドット。
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JP2016213980A JP6815602B2 (ja) | 2016-11-01 | 2016-11-01 | 量子ドット |
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JP2016213980A JP6815602B2 (ja) | 2016-11-01 | 2016-11-01 | 量子ドット |
Publications (2)
Publication Number | Publication Date |
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JP2018070807A JP2018070807A (ja) | 2018-05-10 |
JP6815602B2 true JP6815602B2 (ja) | 2021-01-20 |
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JP2016213980A Active JP6815602B2 (ja) | 2016-11-01 | 2016-11-01 | 量子ドット |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109628082A (zh) * | 2018-11-01 | 2019-04-16 | 纳晶科技股份有限公司 | 一种ZnOS/ZnO纳米晶及其制备方法、发光器件 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100817853B1 (ko) * | 2006-09-25 | 2008-03-31 | 재단법인서울대학교산학협력재단 | 점진적 농도구배 껍질 구조를 갖는 양자점 및 이의 제조방법 |
WO2008087856A1 (ja) * | 2007-01-15 | 2008-07-24 | Stanley Electric Co., Ltd. | ZnO系半導体発光素子とその製造方法 |
EP3058598A4 (en) * | 2013-10-17 | 2017-03-29 | Nanophotonica, Inc. | Quantum dot for emitting light and method for synthesizing same |
JP6697272B2 (ja) * | 2015-01-19 | 2020-05-20 | スタンレー電気株式会社 | コアシェル構造を有する量子ドットとその製造方法 |
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