KR101374512B1 - Ⅲ족-ⅴ족 반도체 코어-헤테로쉘 나노결정 - Google Patents
Ⅲ족-ⅴ족 반도체 코어-헤테로쉘 나노결정 Download PDFInfo
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- KR101374512B1 KR101374512B1 KR1020087001156A KR20087001156A KR101374512B1 KR 101374512 B1 KR101374512 B1 KR 101374512B1 KR 1020087001156 A KR1020087001156 A KR 1020087001156A KR 20087001156 A KR20087001156 A KR 20087001156A KR 101374512 B1 KR101374512 B1 KR 101374512B1
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- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
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- C30B29/60—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape characterised by shape
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- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- 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
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- 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
- C09K11/70—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus
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- 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
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
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- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/34—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers
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- H—ELECTRICITY
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- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
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- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
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Abstract
Description
Claims (35)
- Ⅲ족/Ⅴ족 화합물로 이루어진 코어 물질과 적어도 두 개의 쉘 물질을 포함하는 코어/멀티쉘 반도체 나노결정에 있어서, 제1 쉘 물질이 상기 코어 물질을 피복하고, 제2 쉘 물질은 상기 제1 쉘 물질을 피복하며, 순차적으로 각각의 다음의 쉘 물질은 이전의 쉘을 피복하고, 각각의 쉘 물질은 Ⅱ족/Ⅵ족, Ⅲ족/Ⅴ족, 또는 Ⅲ족/Ⅵ족 화합물로부터 독립적으로 선택되는 것임을 특징으로 하고, 상기 코어 물질이 상기 제1 쉘 물질과 다르고, 어떤 쉘 물질도 이웃한 쉘 물질과 다른 것임을 특징으로 하며, 상기 나노결정이 Ⅰ형 밴드 오프셋을 나타내고 400nm부터 1600nm까지의 파장에서 냉광을 발산하는 것임을 특징으로 하는, 코어/멀티쉘 반도체 나노결정.
- 제1항에 따른 코어/멀티쉘 반도체 나노결정에 있어서,(ⅰ) 상기 코어 물질의 밴드 갭이 상기 제1 및 그 다음의 쉘 물질의 밴드 갭보다 작고;(ⅱ) 상기 제1 쉘 물질의 밴드 갭이 상기 코어 물질의 밴드 갭보다 크고 그 다음의 쉘 물질의 밴드 갭보다 작으며; 그리고(ⅲ) 상기 제2 및 그 다음의 쉘 물질의 밴드 갭이 상기 제1 또는 이전의 쉘 물질의 밴드 갭보다 크고 그 다음의 쉘 물질의 밴드 갭보다 작은 것임을 특징으로 하는, 코어/멀티쉘 반도체 나노결정.
- 코어 물질 및 2 내지 7개의 쉘 물질을 포함하는, 제1항 또는 제2항에 따른 코어/멀티쉘 반도체 나노결정.
- 도핑되지 않은 나노결정인, 제1항 또는 제2항의 코어/멀티쉘 반도체 나노결정.
- Ⅲ족/Ⅵ족 화합물로 제조된 코어 물질, 쉘1 물질 및 쉘2 물질을 포함하고, 상기 쉘1 물질 및 쉘2 물질 각각이 Ⅱ족/Ⅵ족, Ⅲ족/Ⅴ족 또는 Ⅲ족/Ⅵ족 화합물로부터 독립적으로 선택되는 다른 물질로 제조되는 코어/쉘1/쉘2 반도체 나노결정에 있어서, 상기 쉘1 물질이 상기 코어 물질을 피복하고 상기 쉘2 물질이 상기 쉘1 물질을 피복하는 것을 특징으로 하고; 상기 나노결정이 NIR 분광기로 측정할 때 400nm부터 1600nm까지의 파장에서 냉광을 발산하는 것임을 특징으로 하는, 코어/쉘1/쉘2 반도체 나노결정.
- Ⅲ족/Ⅵ족 화합물로 제조된 코어 물질, 쉘1 물질 및 쉘2 물질을 포함하고, 상기 쉘1 물질 및 쉘2 물질 각각이 Ⅱ족/Ⅵ족, Ⅲ족/Ⅴ족 또는 Ⅲ족/Ⅵ족 화합물로부터 독립적으로 선택되는 다른 물질로 제조되는 코어/쉘1/쉘2 반도체 나노결정에 있어서, 상기 쉘1 물질이 상기 코어 물질을 피복하고 상기 쉘2 물질이 상기 쉘1 물질을 피복하는 것을 특징으로 하고;(ⅰ) 상기 코어 물질의 밴드 갭이 상기 쉘1 물질 및 쉘2 물질의 밴드 갭보다 작고;(ⅱ) 상기 쉘1 물질의 밴드 갭이 상기 코어 물질의 밴드 갭보다 크며 상기 쉘2 물질의 밴드 갭보다 작은 것임을 특징으로 하는, 코어/쉘1/쉘2 반도체 나노결정.
- 제1항 또는 제2항에 따른 코어/멀티쉘 반도체 나노결정에 있어서, Ⅲ족/Ⅵ족 화합물로 제조된 코어 물질이 InAs, InP, GaAs, GaP, GaSb, InSb, AlAs, AlP, AlSb, InGaAs, GaAsP, 및 InAsP로부터 선택되는 것임을 특징으로 하는, 코어/멀티쉘 반도체 나노결정.
- 제7항에 따른 코어/멀티쉘 반도체 나노결정에 있어서, 상기 코어 물질이 InAs, InP 또는 GaAs인 것임을 특징으로 하는, 코어/멀티쉘 반도체 나노결정.
- 제1항 또는 제2항에 따른 코어/멀티쉘 반도체 나노결정에 있어서, 상기 적어도 두 개의 쉘 물질이 Ⅱ족/Ⅵ족 화합물로부터 선택되는 것임을 특징으로 하는, 코어/멀티쉘 반도체 나노결정.
- 제1항 또는 제2항에 따른 코어/멀티쉘 반도체 나노결정에 있어서, 상기 적어도 두 개의 쉘 물질이 Ⅲ족/Ⅴ족 화합물로부터 선택되는 것임을 특징으로 하는, 코어/멀티쉘 반도체 나노결정.
- 제1항 또는 제2항에 따른 코어/멀티쉘 반도체 나노결정에 있어서, 상기 적어도 두 개의 쉘 물질이 Ⅲ족/Ⅵ족 화합물로부터 선택되는 것임을 특징으로 하는, 코어/멀티쉘 반도체 나노결정.
- 제9항에 따른 코어/멀티쉘 반도체 나노결정에 있어서, 상기 Ⅱ족/Ⅵ족 화합물이 CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, HgS, HgSe, HgTe, CdZnSe, CdSSe, 및 ZnSSe로부터 선택되는 것임을 특징으로 하는, 코어/멀티쉘 반도체 나노결정.
- 제10항에 따른 코어/멀티쉘 반도체 나노결정에 있어서, 상기 Ⅲ족/Ⅴ족 화합물이 InAs, GaAs, GaP, GaSb, InP, InSb, AlAs, AlP, AlSb, InGaAs, GaAsP, 및 InAsP로부터 선택되는 것임을 특징으로 하는, 코어/멀티쉘 반도체 나노결정.
- 제11항에 따른 코어/멀티쉘 반도체 나노결정에 있어서, 상기 Ⅲ족/Ⅵ족 화합물이 InS, In2S3, InSe, In2Se3, In4Se3, In2Se3, InTe, GaS, Ga2Se3, GaSe, Ga2Se3, GaTe, In2Se3-xTex, GaTeSe, 및 (GaxIn1-x)Se3로부터 선택되는 것임을 특징으로 하는, 코어/멀티쉘 반도체 나노결정. 여기에서 x는 0 또는 1이다.
- 제1항 또는 제2항에 있어서, 상기 코어/멀티쉘 반도체 나노결정이 InAs/CdSe/ZnS, InAs/CdSe/CdS, InAs/InP/ZnSe, InP/ZnSe/ZnS, InP/CdS/ZnSe, InP/CdS/ZnSe, GaAs/CdSe/ZnS, 및 GaAs/CdS/ZnS로부터 선택되는 것임을 특징으로 하는 코어/멀티쉘 반도체 나노결정.
- 제1항 또는 제2항에 있어서, 상기 코어/멀티쉘 반도체 나노결정이 InAs/CdSe/ZnSe 또는 InP/ZnSe/ZnS인 것임을 특징으로 하는 코어/멀티쉘 반도체 나노결정.
- (ⅰ) 코어를 제공하는 단계,(ⅱ) 상기 코어를 용액 내에서 Ⅲa족, Ⅱa족, Ⅴa족 또는 Ⅵa족 이온으로 이루어진 군에서 선택되는 가용성 양이온 또는 음이온의 제1 용액과 접촉시켜, 상기 양이온 또는 음이온을 상기 코어 상에서 반응시키는 단계,(ⅲ) 상기 코어를 용액 내에서 Ⅲa족, Ⅱa족, Ⅴa족 또는 Ⅵa족 이온으로 이루어진 군에서 선택되는, 상기 (ⅱ) 단계의 제1 가용성 양이온 또는 가용성 음이온 용액의 반대 이온과 접촉시켜, 상기 반대 이온을 반응시켜 코어/쉘1 구조체를 제조하는 단계,(ⅳ) 상기 코어/쉘1 구조체를 용액 내에서 Ⅲa족, Ⅱa족, Ⅴa족 또는 Ⅵa족 이온으로 이루어진 군에서 선택되는 가용성 양이온 또는 음이온의 제2 용액과 접촉시켜, 상기 양이온 또는 음이온을 상기 코어/쉘1 구조체의 쉘1 상에서 반응시키는 단계,(ⅴ) 상기 코어/쉘1 구조체를 용액 내에서 Ⅲa족, Ⅱa족, Ⅴa족 또는 Ⅵa족 이온으로 이루어진 군에서 선택되는, 상기 (ⅳ) 단계의 제2 가용성 양이온 또는 가용성 음이온 용액의 반대 이온과 접촉시키고 반응시켜 코어/쉘1/쉘2 구조체를 제조하는 단계,(ⅵ) 선택적으로 상기 (ⅱ) 내지 (ⅴ) 단계를 반복하는 단계를 포함하는, 적어도 두 개의 쉘을 가지는 코어/멀티쉘 반도체 나노결정 제조 방법에 있어서,상기 코어/멀티쉘이 도핑되지 아니하고 400nm부터 1600nm까지의 파장에서 냉광을 발산하는 것임을 특징으로 하는, 코어/멀티쉘 반도체 나노결정 제조 방법.
- 제17항에 따른 방법에 있어서, 상기 코어/멀티쉘이 Ⅰ형 밴드 오프셋을 나타내는 것을 특징으로 하는 방법.
- 제17항에 따른 방법에 있어서, 상기 코어/쉘1 및 상기 코어/쉘1/쉘2 구조체들을 분리시키는 단계를 추가로 포함하는 것을 특징으로 하는 방법.
- 제17항에 따른 방법에 있어서, 상기 제1 가용성 양이온 용액이 Cd 및 Zn으로부터 선택되는 것을 특징으로 하는 방법.
- 제17항에 따른 방법에 있어서, 상기 제1 가용성 음이온 용액이 S, Se 및 P으로부터 선택되는 것을 특징으로 하는 방법.
- 제17항에 따른 방법에 있어서, 상기 제2 가용성 양이온 용액이 Cd 및 Zn으로부터 선택되는 것을 특징으로 하는 방법.
- 제17항에 따른 방법에 있어서, 상기 제2 가용성 음이온 용액이 S 및 Se으로부터 선택되는 것을 특징으로 하는 방법.
- 다수개의 제1항 또는 제2항에 따른 코어/멀티쉘 반도체 나노결정을 포함하는, 데이터보유 광신호(data-carrying optical signals) 증폭용 광대역 광증폭기(wideband optical amplifier)에 있어서, 각각의 상기 코어/멀티쉘 나노결정이 특정 광밴드(optical band)에 대응하는 코어 디멘젼(dimensions)을 가지고 광전송 매체 내의 미리 정해진 지점에 위치하며; 그리고 상기 특정 광밴드 내의 데이터보유 광신호(data-carrying optical signals)의 증폭에 필요한 광에너지로 상기 나노결정 각각을 여기시키기 위하여 상기 광전송 매체에 연결된 펌핑하는, 간섭성 광원(a pumping, coherent-light source)을 포함하고, 상기 광전송 매체 내에 수용되는, 데이터보유 광신호 증폭용 광대역 광증폭기.
- 다수개의 제1항 또는 제2항에 따른 코어/멀티쉘 반도체 나노결정을 포함하는, 발광 다이오드.
- 다수개의 제1항 또는 제2항에 따른 코어/멀티쉘 반도체 나노결정을 포함하는, 생물학적 표지제(biological labeling agent).
- 다수개의 제1항 또는 제2항에 따른 코어/멀티쉘 반도체 나노결정을 포함하는, 광전기 장치(photoelectric device).
- 다수개의 제1항 또는 제2항에 따른 코어/멀티쉘 반도체 나노결정을 포함하는, 레이저 장치(laser device).
- 다수개의 제1항 또는 제2항에 따른 코어/멀티쉘 반도체 나노결정을 포함하는, 광 데이터 통신 시스템(optical data communication system).
- 다수개의 제1항 또는 제2항에 따른 코어/멀티쉘 반도체 나노결정을 포함하는, 호스트 물질(host material).
- 제30항에 있어서, 상기 호스트 물질이 고분자인 것임을 특징으로 하는 호스트 물질.
- 제31항에 따른 호스트 물질에 있어서, 상기 고분자가 불소화 고분자, 폴리아크릴아미드, 폴리아크릴산, 폴리아크릴로니트릴, 폴리아닐린, 폴리벤조페논, 폴리(메틸 메타크릴레이트), 실리콘 고분자, 알루미늄 고분자, 폴리비스페놀, 폴리부타디엔, 폴리디메틸실록산, 폴리에틸렌, 폴리이소부틸렌, 폴리프로필렌, 폴리스티렌 및 폴리비닐 고분자들로부터 선택되는 것임을 특징으로 하는, 호스트 물질.
- 제32항에 따른 호스트 물질에 있어서, 상기 고분자가 폴리비닐 및 불소화 고분자들로부터 선택되는 것임을 특징으로 하는, 호스트 물질.
- 제33항에 따른 호스트 물질에 있어서, 상기 고분자가 폴리비닐-부티랄 또는 퍼플루오로사이클로부틸인 것임을 특징으로 하는, 호스트 물질.
- 400nm부터 1600nm까지의 파장에서 냉광을 가지는, 다수개의 제1항 또는 제2항에 따른 코어/멀티쉘 반도체 나노결정을 포함하는, 다수개의 코어/멀티쉘 반도체 나노결정.
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US20110212561A1 (en) | 2011-09-01 |
US8343576B2 (en) | 2013-01-01 |
EP1891686A1 (en) | 2008-02-27 |
JP5137825B2 (ja) | 2013-02-06 |
CN101194372A (zh) | 2008-06-04 |
US20090230382A1 (en) | 2009-09-17 |
JP2008544013A (ja) | 2008-12-04 |
CN100570912C (zh) | 2009-12-16 |
ATE520156T1 (de) | 2011-08-15 |
US7964278B2 (en) | 2011-06-21 |
WO2006134599A1 (en) | 2006-12-21 |
EP1891686B1 (en) | 2011-08-10 |
KR20080046158A (ko) | 2008-05-26 |
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