JP2019502257A - 軸方向配置の3次元半導体構造を有する光電子素子 - Google Patents
軸方向配置の3次元半導体構造を有する光電子素子 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 58
- 230000005693 optoelectronics Effects 0.000 title claims abstract description 48
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 230000001681 protective effect Effects 0.000 claims abstract description 7
- 239000011241 protective layer Substances 0.000 claims description 60
- 239000010410 layer Substances 0.000 claims description 53
- 150000001875 compounds Chemical class 0.000 claims description 41
- 239000000463 material Substances 0.000 claims description 29
- 230000004907 flux Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 230000006911 nucleation Effects 0.000 claims description 14
- 238000010899 nucleation Methods 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 11
- 229910002704 AlGaN Inorganic materials 0.000 claims description 10
- 239000002096 quantum dot Substances 0.000 claims description 8
- 238000001451 molecular beam epitaxy Methods 0.000 claims description 6
- 229910021480 group 4 element Inorganic materials 0.000 claims description 5
- 229910021478 group 5 element Inorganic materials 0.000 claims description 5
- 229910052738 indium Inorganic materials 0.000 description 15
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 15
- 230000003287 optical effect Effects 0.000 description 13
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 9
- 239000002070 nanowire Substances 0.000 description 9
- 229910052710 silicon Inorganic materials 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 238000000295 emission spectrum Methods 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 229910052727 yttrium Inorganic materials 0.000 description 7
- 239000013078 crystal Substances 0.000 description 6
- -1 GaN Chemical class 0.000 description 5
- 238000004581 coalescence Methods 0.000 description 5
- 230000006798 recombination Effects 0.000 description 5
- 238000005215 recombination Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 3
- 239000002800 charge carrier Substances 0.000 description 3
- 229910052733 gallium Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910017214 AsGa Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910004613 CdTe Inorganic materials 0.000 description 1
- 229910004262 HgTe Inorganic materials 0.000 description 1
- 229910000661 Mercury cadmium telluride Inorganic materials 0.000 description 1
- 229910016001 MoSe Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- 229910003363 ZnMgO Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 229910021476 group 6 element Inorganic materials 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- MHWZQNGIEIYAQJ-UHFFFAOYSA-N molybdenum diselenide Chemical compound [Se]=[Mo]=[Se] MHWZQNGIEIYAQJ-UHFFFAOYSA-N 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 125000002743 phosphorus functional group Chemical group 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
i.基板の面から長手方向軸に沿って延在する第1ドープ部が形成され、
ii.第1ドープ部から長手方向軸に沿って延在する、少なくとも1つの量子井戸を有する活性部が形成され、
工程ii)では、第1ドープ部のものよりも大きな平均直径を有するように各活性部の量子井戸が形成され、
加えて、量子井戸の側面を覆う保護層が形成される。
例えば、半導体材料で作られ、後面3a及び前面3bと呼ばれる互いに対向する2つの面を有する基板3と、
ここでは、基板の後面3aと接触する第1分極性電極(polarization electrode)と、
3次元半導体構造のエピタキシャル成長に適した材料で作られ、基板の前面3bを覆う核形成層5と、
核形成層5から基板3の前面3bの(X,Y)平面に実質的に直交する方向に向く長手方向軸Δに沿って延在する、ここではワイヤ類の形状の3次元半導体構造2であって、各ワイヤ2は、核形成層5と接触する第1ドープ部10と、長手方向軸Δに沿って第1ドープ部10の延長部分に配置された活性部30及び第2ドープ部20とを有する3次元半導体構造2と、
各第2ドープ部20と接触する、第2分極性電極6の層と
を備える。
・V族の元素の流束に対するIII族の元素の流束の比率として定義される、すなわち、この場合、GaNの第1ドープ部及び第2ドープ部の成長の間のGa/N比である名目のIII/V比、及び、InGaNの量子井戸の成長の間の、金属/N又は(Ga+In)/Nとも呼ばれるIII/N比、
・III族の元素、すなわち、ガリウム及びインジウムの流束に対する追加元素、ここでは、インジウムの流束の比率として定義される、名目のIn/III比率
・ここでは基板の位置で測定される成長温度T
である。
Claims (14)
- 3次元半導体構造(2)が載る基板(3)の平面に実質的に直交する長手方向軸(Δ)に沿って延在する少なくとも1つの3次元半導体構造(2)を備える光電子素子(1)であって、
基板(3)の面から長手方向軸(Δ)に沿って延在する第1ドープ部(10)と、
第1ドープ部(10)から長手方向軸(Δ)に沿って延在する、少なくとも1つの量子井戸(32)を有する活性部(30)と、
活性部(30)から長手方向軸(Δ)に沿って延在する第2ドープ部(20)と
を備え、
活性部(30)の量子井戸(32)は、第1ドープ部(10)のものよりも大きな平均直径を有して保護膜(34)により側面を覆われ、
光電子素子(1)は、互いに実質的に平行に延在して活性部(30)が相互に接触する、複数の3次元半導体構造(2)を備える
ことを特徴とする光電子素子(1)。 - 各活性部(30)の1つ又は複数の量子井戸(32)は、相互に接触する保護層(34)により、隣の活性部(30)の1つ又は複数の量子井戸(32)から分離される
請求項1記載の光電子素子(1)。 - 基板(3)の単位領域当たり0.5〜1.5×1010cm−2の第1ドープ部の濃度を有し、第1ドープ部(10)は相互に分離し、長手方向軸(Δ)に沿って実質的に一定の平均直径を有する
請求項1又は請求項2記載の光電子素子(1)。 - 保護層(34)は2nm以上、好ましくは、2〜15nmの平均厚さを有する
請求項1乃至請求項3のいずれか1項記載の光電子素子(1)。 - 第1ドープ部(10)はIII-V族化合物、II-VI族化合物、IV族元素又はIV族化合物で作られ、保護層(34)は第1ドープ部の化合物に含まれる少なくとも1つの元素を有する化合物で作られる
請求項1乃至請求項4のいずれか1項記載の光電子素子(1)。 - 1つ又は複数の量子井戸(32)の平均直径が、第1ドープ部(10)の平均直径の115〜250%である
請求項1乃至請求項5のいずれか1項記載の光電子素子(1)。 - 活性部(30)は、第1ドープ部(10)と第2ドープ部(20)との間に連続して延在して側面を保護層(34)により覆われる単一量子井戸(32)を有する
請求項1乃至請求項6のいずれか1項記載の光電子素子(1)。 - 活性部(30)が、複数の障壁層の間に挿入されて側面を保護層(34)で覆われる量子井戸又は量子ドットを形成するいくつかの層(32)を有する
請求項1乃至請求項6のいずれか1項記載の光電子素子(1)。 - 3次元半導体構造(2)は、主にIII-N化合物を有する材料で作られ、保護層(34)は好ましくはGaN、AlGaN、AlNから選択される化合物で作られる
請求項1乃至請求項8のいずれか1項記載の光電子素子(1)。 - 3次元半導体構造(2)が分子線エピタキシャル成長法により形成される
請求項1乃至請求項9のいずれか1項記載の光電子素子(1)を作るための方法。 - エピタキシャル成長法による複数の3次元半導体構造(2)の形成の次の工程
i.基板(3)の面から長手方向軸(Δ)に沿って延在する第1ドープ部(10)が形成される工程、
ii.第1ドープ部から長手方向軸(Δ)に沿って延在する、少なくとも1つの量子井戸(32)を有する活性部(30)が形成される工程
を有し、
工程ii)では、第1ドープ部(10)のものよりも大きな平均直径を有するように各活性部(30)の量子井戸(32)が形成され
加えて、量子井戸(32)の側面を覆う保護層(34)が形成される
ことを特徴とする請求項10記載の方法。 - 保護層(34)の形成が、量子井戸(32)の形成と同時である
請求項11記載の方法。 - 3次元半導体構造(2)は主にIII-V族化合物を有し、活性部(30)の形成の工程ii)が、第1ドープ部の形成の工程i)での(T1)値未満の小さいエピタキシャル成長温度(T2)値で、好ましくは、600〜680℃で行われ、V族元素の原子流束に対するIII族元素の原子流束の比率が0.33〜0.60で行われる
請求項10乃至請求項12のいずれか1項記載の方法。 - 第1ドープ部(10)の形成の工程i)は、基板の単位領域当たりの第1ドープ部(10)の濃度が0.5〜1.5×1010cm−2となるような成長温度で行われるIII-V族化合物の核形成の補助工程を有する
請求項13項記載の方法。
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JP7336767B2 (ja) | 2019-10-03 | 2023-09-01 | 株式会社小糸製作所 | 半導体発光素子および半導体発光素子の製造方法 |
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FR3064109A1 (fr) * | 2017-03-20 | 2018-09-21 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Structure a nanofils et procede de realisation d'une telle structure |
KR20200063411A (ko) * | 2018-11-27 | 2020-06-05 | 삼성디스플레이 주식회사 | 발광 소자, 이의 제조 방법 및 발광 소자를 구비한 표시 장치 |
JP7227463B2 (ja) * | 2018-12-27 | 2023-02-22 | 日亜化学工業株式会社 | 発光素子及びその製造方法 |
CN111463659B (zh) * | 2019-01-21 | 2021-08-13 | 华为技术有限公司 | 量子点半导体光放大器及其制备方法 |
FR3098012B1 (fr) * | 2019-06-25 | 2023-01-13 | Aledia | Procédé d'homogénéisation de la section de nanofils pour diodes électroluminescentes |
FR3098019B1 (fr) * | 2019-06-25 | 2022-05-20 | Aledia | Dispositif optoélectronique comprenant des éléments semi-conducteurs tridimensionnels et procédé pour sa fabrication |
FR3098013B1 (fr) * | 2019-06-25 | 2021-07-02 | Commissariat Energie Atomique | Procédé de fabrication d'un dispositif optoélectronique à diodes électroluminescentes de type axial |
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CN108713258A (zh) | 2018-10-26 |
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