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Measurement of absorption and external quantum efficiency of an InAs/GaSb Type II superlattice
https://jaxa.repo.nii.ac.jp/records/22564
https://jaxa.repo.nii.ac.jp/records/22564a1eb7249-41d6-445d-90fd-a74493eaf675
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||||||||
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| 公開日 | 2015-08-24 | |||||||||||||||
| タイトル | ||||||||||||||||
| タイトル | Measurement of absorption and external quantum efficiency of an InAs/GaSb Type II superlattice | |||||||||||||||
| 言語 | en | |||||||||||||||
| 言語 | ||||||||||||||||
| 言語 | eng | |||||||||||||||
| キーワード | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | InAs/GaSb Type-II superlattice | |||||||||||||||
| キーワード | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | Mid-wavelength infrared | |||||||||||||||
| キーワード | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | Absorption | |||||||||||||||
| キーワード | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | Quantum efficiency | |||||||||||||||
| 資源タイプ | ||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||
| 資源タイプ | journal article | |||||||||||||||
| アクセス権 | ||||||||||||||||
| アクセス権 | metadata only access | |||||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||||||||||||
| 著者 |
Katayama, Haruyoshi
× Katayama, Haruyoshi
× Takekawa, Tomoko
× Kimata, Masafumi
× Inada, Hiroshi
× Iguchi, Yasuhiro
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| 著者所属（英） | ||||||||||||||||
| en | ||||||||||||||||
| Japan Aerospace Exploration Agency (JAXA) | ||||||||||||||||
| 著者所属（英） | ||||||||||||||||
| en | ||||||||||||||||
| Ritsumeikan University | ||||||||||||||||
| 著者所属（英） | ||||||||||||||||
| en | ||||||||||||||||
| Ritsumeikan University | ||||||||||||||||
| 著者所属（英） | ||||||||||||||||
| en | ||||||||||||||||
| Sumitomo Electric Industries | ||||||||||||||||
| 著者所属（英） | ||||||||||||||||
| en | ||||||||||||||||
| Sumitomo Electric Industries | ||||||||||||||||
| 出版者（英） | ||||||||||||||||
| 出版者 | Elsevier | |||||||||||||||
| 書誌情報 |
en : Infrared Physics and Technology 巻 70, p. 53-57, 発行日 2015-05 |
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| 抄録（英） | ||||||||||||||||
| 内容記述タイプ | Other | |||||||||||||||
| 内容記述 | We present an experimental result of absorption and external quantum efficiency measurements of an InAs/GaSb Type II superlattice (T2SL). The probed T2SL sample consisted of a 6 μm cutoff p–i–n diode having a 300-period superlattice with a 9-monolayer (ML) GaSb /0.9 ML InSb/7 ML InAs on a p-type GaSb substrate. \nThe absorption quantum efficiency is estimated from the sample transmission at 87 K. We prepared three T2SL samples using GaSb substrates of different thicknesses: 150, 100, and 50 μm. By comparing the transmission spectra of these samples to that of a 100 μm thick GaSb substrate, we derived the absorption coefficient and the absorption quantum efficiency of the T2SL sample. We also discuss the refractive index of T2SL using a thin-film interference method together with the transmission measurements. \nThe external quantum efficiency is measured with a p–i–n detector using the T2SL sample having the same design. The detector consists of a 50-period p-type (Be: 1 × 1017 cm−3) SL, a 200-period undoped SL as absorbing layer, and a 50-period n-type (Si: 1 × 1017 cm−3) SL. The detector responsivity is 0.4 A/W at 4.5 μm and the quantum efficiency is 17% at 30 K. \nThe absorption quantum efficiency was 25% at 4.5 μm when we employed the complete T2SL (300-period T2SL). However, it became 18% when we used the absorption layer (200-period T2SL), which is consistent with the measured external quantum efficiency. This result suggests that almost all the carriers generated in the absorption layer are collected. |
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| 収録物識別子タイプ | ISSN | |||||||||||||||
| 収録物識別子 | 1350-4495 | |||||||||||||||
| 書誌レコードID | ||||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||||
| 収録物識別子 | AA10992373 | |||||||||||||||
| DOI | ||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||
| 関連識別子 | http://dx.doi.org/10.1016/j.infrared.2014.10.014 | |||||||||||||||
| 関連名称 | info:doi/10.1016/j.infrared.2014.10.014 | |||||||||||||||
| 資料番号 | ||||||||||||||||
| 内容記述タイプ | Other | |||||||||||||||
| 内容記述 | 資料番号: PA1510066000 | |||||||||||||||
