KR102264671B1 - 자외선 발광소자 - Google Patents
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- KR102264671B1 KR102264671B1 KR1020140131986A KR20140131986A KR102264671B1 KR 102264671 B1 KR102264671 B1 KR 102264671B1 KR 1020140131986 A KR1020140131986 A KR 1020140131986A KR 20140131986 A KR20140131986 A KR 20140131986A KR 102264671 B1 KR102264671 B1 KR 102264671B1
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- 238000002347 injection Methods 0.000 claims abstract description 56
- 239000007924 injection Substances 0.000 claims abstract description 56
- 239000004065 semiconductor Substances 0.000 claims abstract description 40
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 11
- 239000006185 dispersion Substances 0.000 abstract description 10
- 230000001965 increasing effect Effects 0.000 abstract description 10
- 239000004047 hole gas Substances 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 200
- 150000004767 nitrides Chemical class 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 6
- 229910002704 AlGaN Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 2
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 230000032900 absorption of visible light Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/816—Bodies having carrier transport control structures, e.g. highly-doped semiconductor layers or current-blocking structures
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/811—Bodies having quantum effect structures or superlattices, e.g. tunnel junctions
- H10H20/812—Bodies having quantum effect structures or superlattices, e.g. tunnel junctions within the light-emitting regions, e.g. having quantum confinement structures
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/8215—Bodies characterised by crystalline imperfections, e.g. dislocations; characterised by the distribution of dopants, e.g. delta-doping
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/822—Materials of the light-emitting regions
- H10H20/824—Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP
- H10H20/825—Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP containing nitrogen, e.g. GaN
- H10H20/8252—Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP containing nitrogen, e.g. GaN characterised by the dopants
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/811—Bodies having quantum effect structures or superlattices, e.g. tunnel junctions
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/822—Materials of the light-emitting regions
- H10H20/824—Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP
- H10H20/825—Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP containing nitrogen, e.g. GaN
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Abstract
Description
도 2는 본 발명의 다른 실시예에 따른 자외선 발광소자를 도시한 단면도이다.
도 3은 본 발명의 자외선 발광소자의 밴드 갭을 설명하기 위한 도면이다.
25: 활성층 27: p형 반도체층
27a: 전자블록층 27b: 홀 주입층
27c: Al-델타층 27d: 제1 p형 컨택층
27e: 제2 p형 컨택층
Claims (12)
- 기판;
상기 기판 상에 위치하는 n형 반도체층;
상기 n형 반도체층 상에 위치하는 활성층;
상기 활성층 상에 위치하고, Al을 포함하는 홀 주입층;
상기 홀 주입층 상에 위치하며, Al을 포함하는 Al-델타층; 및
상기 Al-델타층 상에 위치하고, p형 도핑농도가 상기 홀 주입층보다 높은 제1 p형 컨택층을 포함하고,
상기 홀 주입층의 Al 함량보다 상기 제1 p형 컨택층의 Al 함량이 낮고,
상기 제1 p형 컨택층의 밴드 갭은 상기 활성층에서 발광하는 광의 에너지보다 같거나 낮으며,
상기 Al-델타층은 상기 홀 주입층의 Al의 함유량보다 Al 함유량이 높고, 홀이 터널링하여 활성층에 진입할 수 있는 자외선 발광소자. - 청구항 1에 있어서,
상기 Al-델타층은 p형 도핑되며, 도핑 농도는 상기 홀 주입층보다 높은 자외선 발광소자. - 청구항 1에 있어서,
상기 Al-델타층의 두께는 2nm 내지 20nm인 자외선 발광소자. - 청구항 1에 있어서
상기 Al-델타층과 제1 p형 컨택층 사이에 p형 도핑 농도가 상기 제1 p형 컨택층보다 낮고 Al 농도가 상기 홀 주입층보다 낮은 제2 p형 컨택층을 더 포함하는 자외선 발광소자. - 삭제
- 청구항 4에 있어서,
상기 제2 p형 컨택층의 밴드 갭은 상기 활성층에서 발광하는 광의 에너지보다 같거나 낮은 자외선 발광 소자. - 청구항 1에 있어서,
상기 제1 p형 컨택층은 In을 함유하는 자외선 발광소자. - 청구항 1에 있어서,
상기 홀 주입층의 밴드 갭은 상기 활성층에서 발광하는 광의 에너지보다 같거나 높은 자외선 발광 소자. - 청구항 1에 있어서,
상기 Al-델타층은 상기 홀 주입층에서 상기 제1 p형 컨택층으로 갈수록 Al 함유량이 증가하는 자외선 발광소자. - 청구항 1에 있어서, 상기 Al-델타층은,
Al 농도가 컨택층 방향으로 계단형으로 증가하는 자외선 발광소자. - 청구항 10에 있어서,
상기 Al-델타층의 두께는 2nm 내지 20nm인 자외선 발광소자. - 청구항 2에 있어서,
상기 Al-델타층의 Mg 도핑 농도는 상기 홀 주입층보다 높은 자외선 발광소자.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140131986A KR102264671B1 (ko) | 2014-09-30 | 2014-09-30 | 자외선 발광소자 |
US15/515,991 US9905728B2 (en) | 2014-09-30 | 2015-09-30 | Vertical ultraviolet light emitting device |
CN201520770680.5U CN205376556U (zh) | 2014-09-30 | 2015-09-30 | 垂直紫外线发光器件 |
PCT/KR2015/010317 WO2016052997A1 (en) | 2014-09-30 | 2015-09-30 | Vertical ultraviolet light emitting device |
US15/881,633 US10199539B2 (en) | 2014-09-30 | 2018-01-26 | Vertical ultraviolet light emitting device |
Applications Claiming Priority (1)
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KR1020140131986A KR102264671B1 (ko) | 2014-09-30 | 2014-09-30 | 자외선 발광소자 |
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KR20160038629A KR20160038629A (ko) | 2016-04-07 |
KR102264671B1 true KR102264671B1 (ko) | 2021-06-15 |
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US (2) | US9905728B2 (ko) |
KR (1) | KR102264671B1 (ko) |
CN (1) | CN205376556U (ko) |
WO (1) | WO2016052997A1 (ko) |
Families Citing this family (9)
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EP3073538B1 (en) * | 2015-03-25 | 2020-07-01 | LG Innotek Co., Ltd. | Red light emitting device and lighting system |
DE102016111929A1 (de) * | 2016-06-29 | 2018-01-04 | Osram Opto Semiconductors Gmbh | Optoelektronischer Halbleiterkörper und Leuchtdiode |
DE102017119931A1 (de) | 2017-08-30 | 2019-02-28 | Osram Opto Semiconductors Gmbh | Optoelektronisches Halbleiterbauelement |
US11329175B2 (en) * | 2018-01-22 | 2022-05-10 | Panasonic Holdings Corporation | Semiconductor light receiving element and semiconductor relay |
JP7448782B2 (ja) * | 2019-12-20 | 2024-03-13 | 日亜化学工業株式会社 | 窒化物半導体素子の製造方法 |
JP7469150B2 (ja) | 2020-06-18 | 2024-04-16 | 豊田合成株式会社 | 発光素子 |
WO2022094222A1 (en) * | 2020-10-30 | 2022-05-05 | The Regents Of The University Of California | Nitride-based ultraviolet light emitting diode with an ultraviolet transparent contact |
CN113257965B (zh) * | 2021-06-25 | 2021-10-29 | 至芯半导体(杭州)有限公司 | 一种AlInGaN半导体发光器件 |
US20240395966A1 (en) * | 2023-05-24 | 2024-11-28 | Wisconsin Alumni Research Foundation | Light-emitters with group iii-nitride-based quantum well active regions having gan interlayers |
Citations (1)
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KR100838196B1 (ko) | 2007-07-20 | 2008-06-13 | 서울옵토디바이스주식회사 | 개선된 구조를 갖는 발광 다이오드 |
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KR100662191B1 (ko) | 2004-12-23 | 2006-12-27 | 엘지이노텍 주식회사 | 질화물 반도체 발광소자 및 그 제조방법 |
US7462884B2 (en) | 2005-10-31 | 2008-12-09 | Nichia Corporation | Nitride semiconductor device |
US8698163B2 (en) | 2011-09-29 | 2014-04-15 | Toshiba Techno Center Inc. | P-type doping layers for use with light emitting devices |
KR20140059512A (ko) | 2012-11-08 | 2014-05-16 | 엘지이노텍 주식회사 | 발광 소자 |
EP2985792B1 (en) * | 2013-04-12 | 2019-09-18 | Seoul Viosys Co., Ltd. | Ultraviolet light-emitting device |
CN106663718B (zh) * | 2014-05-27 | 2019-10-01 | 斯兰纳Uv科技有限公司 | 光电装置 |
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2014
- 2014-09-30 KR KR1020140131986A patent/KR102264671B1/ko active Active
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2015
- 2015-09-30 US US15/515,991 patent/US9905728B2/en active Active
- 2015-09-30 CN CN201520770680.5U patent/CN205376556U/zh active Active
- 2015-09-30 WO PCT/KR2015/010317 patent/WO2016052997A1/en active Application Filing
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2018
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Publication number | Priority date | Publication date | Assignee | Title |
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KR100838196B1 (ko) | 2007-07-20 | 2008-06-13 | 서울옵토디바이스주식회사 | 개선된 구조를 갖는 발광 다이오드 |
Also Published As
Publication number | Publication date |
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US20170309780A1 (en) | 2017-10-26 |
CN205376556U (zh) | 2016-07-06 |
US10199539B2 (en) | 2019-02-05 |
WO2016052997A1 (en) | 2016-04-07 |
KR20160038629A (ko) | 2016-04-07 |
US9905728B2 (en) | 2018-02-27 |
US20180151775A1 (en) | 2018-05-31 |
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