JP5260502B2 - Iii族窒化物白色発光ダイオード - Google Patents
Iii族窒化物白色発光ダイオード Download PDFInfo
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- H01L33/30—Materials of the light emitting region containing only elements of group III and group V of the periodic system
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- H01L33/26—Materials of the light emitting region
- H01L33/30—Materials of the light emitting region containing only elements of group III and group V of the periodic system
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- H01S5/00—Semiconductor lasers
- 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
- H01S5/341—Structures having reduced dimensionality, e.g. quantum wires
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- H—ELECTRICITY
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- H01S5/00—Semiconductor lasers
- 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
- H01S5/343—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 in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser
- H01S5/34333—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 in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser with a well layer based on Ga(In)N or Ga(In)P, e.g. blue laser
Description
Claims (20)
- 白色発光ダイオードであって、
n型半導体層を備え、
一又は複数の量子井戸構造を備え、各量子井戸構造は、InxGa1−xN量子井戸層及びInyGa1−yNバリア層を備え、ここで、X>0.3又はX=0.3であり、各量子井戸構造は前記InyGa1−yNバリア層上に形成されたInzGa1−zN量子ドットを包含しており、ここでy<x<z≦1、前記InzGa1−zN量子ドットは1nm〜200nmのサイズを有し、前記量子井戸構造は前記n型半導体層を覆って形成されており、
前記量子井戸構造を覆って形成されたp型半導体層を備え、
前記p型半導体層を覆って形成された第1の電極を備え、
前記n型半導体層の第2の部分の表面の少なくとも一部分を覆って形成された第2の電極を備え、
前記InxGa1−xN量子井戸層はp型ドーパント及びn型ドーパントの両方を含み、該白色発光ダイオードの波長範囲は400nmから750nmの範囲にわたる連続スペクトルを含む、白色発光ダイオード。 - 白色発光ダイオードであって、
n型半導体層を備え、
一又は複数の量子井戸構造を備え、各量子井戸構造は、InxGa1−xN量子井戸層及びInyGa1−yNバリア層を備え、ここで、x>yであり、各量子井戸構造は前記InyGa1−yNバリア層上に形成されたInzGa1−zN量子ドットを包含しており、ここでx<z≦1、前記InxGa1−xN量子井戸層はp型ドーパント及びn型ドーパントの両方を含み、該白色発光ダイオードの波長範囲は400nmから750nmの範囲にわたる連続スペクトルを含み、前記InzGa1−zN量子ドットは1nm〜200nmのサイズを有し、前記量子井戸構造は前記n型半導体層を覆って形成されており、
前記量子井戸構造を覆って形成されたp型半導体層を備え、
前記p型半導体層を覆って形成された第1の電極を備え、
前記n型半導体層の表面の少なくとも一部分に形成された第2の電極を備える、白色発光ダイオード。 - 前記n型ドーパントはシリコンを含み、前記p型ドーパントは亜鉛及びマグネシウムの少なくともいずれかを含む、請求項2に記載された白色発光ダイオード。
- 前記n型ドーパントのための前駆体の分圧は9.0×10−5Pa〜1.8×10−4Paの範囲内にある、請求項1〜請求項3のいずれか一項に記載された白色発光ダイオード。
- 前記p型ドーパントのための前駆体の分圧は、3.4×10−4Pa〜6,7×10−4Paの範囲内にある、請求項1〜請求項4のいずれか一項に記載された白色発光ダイオード。
- TMIn、TEIn及びEDMInの少なくともいずれか一つを第1の流量でまず流して最初に核の形成を行うと共に、TMGa及びアンモニアと一緒にTMIn、TEIn及びEDMInの少なくともいずれか一つを第2の流量で次いで流して前記核を成長させ前記量子井戸構造内にキャップすることによって、前記量子ドットが形成される、請求項1〜請求項5のいずれか一項に記載の白色発光ダイオード。
- 前記量子井戸構造の数は1〜30の間にある、請求項1〜請求項6のいずれか一項に記載された白色発光ダイオード。
- 前記InxGa1−xN量子井戸層の厚さは約1〜10nmであり、前記InyGa1−yNバリア層の厚さは約5〜30nmである、請求項1〜請求項7のいずれか一項に記載された白色発光ダイオード。
- 1>x>y>0またはy=0である、請求項1〜請求項8のいずれか一項に記載された白色発光ダイオード。
- 前記n型半導体層は基板上に形成されており、前記基板はサファイア、SiC、GaN及びZnOのいずれか一つからなる、請求項1〜請求項9のいずれか一項に記載された白色発光ダイオード。
- ビスシクロペンタジエニルマグネシウム、ジエチル亜鉛、及びシランの少なくともいずれかが、前記量子井戸構造の成長中にドーパントとして使用される、請求項1〜請求項10のいずれか一項に記載された白色発光ダイオード。
- 白色光を発光する量子井戸構造であって、
GaN又はInGaNからなるバリア層と、
InxGa1−xN井戸層と、
前記バリア層上に形成されておりx>0.3の前記InxGa1−xN井戸層に埋め込まれた、インジウムリッチの量子ドットと、
前記量子ドット及び前記InxGa1−xN井戸層を覆うInyGa1−yNバリア層と、
を備え、
前記量子ドットは1nm〜200nmのサイズを有し、
前記InxGa1−xN井戸層はn型ドーパント及びp型ドーパントの両方を含み、該量子井戸構造の波長範囲は400nmから750nmの範囲にわたる連続スペクトルを含む、量子井戸構造。 - 白色光を発光する量子井戸構造であって、
GaN又はInGaNからなるバリア層と、
p型ドーパントでドープされたInxGa1−xN井戸層と、
前記バリア層上に形成されており前記InxGa1−xN井戸層に埋め込まれた、インジウムリッチのInGaNの量子ドットと、
前記量子ドット及び前記InxGa1−xN井戸層を覆うInyGa1−yNバリア層と、
を備え、
前記量子ドットは1nm〜200nmのサイズを有し、
前記InxGa1−xN井戸層はn型ドーパント及びp型ドーパントの両方を含み、該量子井戸構造の波長範囲は400nmから750nmの範囲にわたる連続スペクトルを含む、量子井戸構造。 - 前記n型ドーパントはシリコンを含み、前記p型ドーパントは亜鉛及びマグネシウムの少なくともいずれかを含む、請求項12又は請求項13に記載された量子井戸構造。
- 当該量子井戸構造はn型半導体層上に成長され、
前記n型半導体層は基板上に成長される、請求項12〜請求項14のいずれか一項に記載された量子井戸構造。 - 前記量子井戸構造はp型半導体層に覆われ、
前記p型半導体層には第1の電極が形成される、請求項12〜請求項15のいずれか一項に記載された量子井戸構造。 - TMIn、TEIn及びEDMInの少なくともいずれか一つを第1の流量で最初に流してまず核の形成を行うと共に、TMG及びアンモニアと共にTMIn、TEIn及びEDMInの少なくとも一つを第2の流量で次いで流して前記核を成長させて前記量子井戸内にキャップすることによって、前記量子ドットが形成される、請求項12〜請求項16のいずれか一項に記載の量子井戸構造。
- 前記InxGa1−xN井戸層の厚さは約1〜10nmであり、前記InyGa1−yNバリア層の厚さは約5〜30nmである、請求項12〜請求項17のいずれか一項に記載の量子井戸構造。
- 1>x>y>0またはy=0である、請求項12〜請求項18のいずれか一項に記載の量子井戸構造。
- ビスシクロペンタジエニルマグネシウム、ジエチル亜鉛、及びシランの少なくともいずれかが、前記InxGa1−xN井戸層の成長中にドーパントとして使用される、請求項12〜請求項19のいずれか一項に記載の量子井戸構造。
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PCT/JP2006/319396 WO2008035447A1 (en) | 2006-09-22 | 2006-09-22 | Group iii nitride white light emitting diode |
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EP (1) | EP2064751A1 (ja) |
JP (1) | JP5260502B2 (ja) |
KR (1) | KR101485890B1 (ja) |
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CA (1) | CA2627823A1 (ja) |
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-
2006
- 2006-09-22 WO PCT/JP2006/319396 patent/WO2008035447A1/en active Application Filing
- 2006-09-22 KR KR1020087013823A patent/KR101485890B1/ko not_active IP Right Cessation
- 2006-09-22 EP EP06810802A patent/EP2064751A1/en not_active Withdrawn
- 2006-09-22 CA CA002627823A patent/CA2627823A1/en not_active Abandoned
- 2006-09-22 US US12/442,180 patent/US8120012B2/en not_active Expired - Fee Related
- 2006-09-22 CN CN2006800492175A patent/CN101346827B/zh not_active Expired - Fee Related
- 2006-09-22 SG SG2011064805A patent/SG174789A1/en unknown
- 2006-09-22 JP JP2009512766A patent/JP5260502B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN101346827A (zh) | 2009-01-14 |
US8120012B2 (en) | 2012-02-21 |
EP2064751A1 (en) | 2009-06-03 |
CA2627823A1 (en) | 2008-03-27 |
SG174789A1 (en) | 2011-10-28 |
WO2008035447A1 (en) | 2008-03-27 |
US20090302308A1 (en) | 2009-12-10 |
JP2010504627A (ja) | 2010-02-12 |
CN101346827B (zh) | 2010-10-06 |
KR101485890B1 (ko) | 2015-01-26 |
KR20090054410A (ko) | 2009-05-29 |
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