JP2018195807A - 電子ビームポンピングされる非c面uvエミッタ - Google Patents
電子ビームポンピングされる非c面uvエミッタ Download PDFInfo
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Abstract
【解決手段】UV放射素子200は、AlGaInN活性領域を含むエピタキシャルヘテロ構造220を含む。AlGaInN活性領域は、非C面結晶成長配向を有する約50%より多いAl含有量を有する、1つ以上の量子井戸構造を有する。AlGaInN活性領域は、電子ビームポンプ源230によって発生した電子ビーム231による励起に応答してUV線221を発生させるように構成される。
【選択図】図2
Description
Claims (10)
- 紫外線(UV)放射素子であって、
非C面結晶成長配向を有する約50%より多いAl含有量を有する、1つ以上の量子井戸構造を有するAlGaInN活性領域を含むエピタキシャルヘテロ構造を含み、電子ビームポンプ源によって発生する電子ビームによる励起に応答して、前記AlGaInN活性領域がUV線を発生させるような構成である、素子。 - 前記量子井戸構造は、半極性結晶成長配向を有する、請求項1に記載の素子。
- 前記半極性結晶成長配向が(20−21)配向または(20−2−1)配向である、請求項2に記載の素子。
- UV放射素子であって、
非C面結晶成長配向を有する約50%より多いAl含有量を有する、1つ以上の量子井戸構造を有するAlGaInN活性領域を含み、電子ビームによるポンピングに応答して、前記AlGaInN活性領域がUV線を発生するような構成である、エピタキシャルヘテロ構造と、
第一リフレクタと第二リフレクタとを含み、前記活性領域が第一リフレクタと第二リフレクタの間に配置される、素子。 - 前記第一リフレクタは、非C面配向を有するエピタキシャル分布型ブラッグリフレクタ(DBR)を含み、
前記エピタキシャルヘテロ構造は、前記第一リフレクタ上に配置される、請求項4に記載の素子。 - 前記ヘテロ構造に電気的に結合され、前記ヘテロ構造の電子ビームポンピングから生じる電子を放出するための電流経路を与えるように構成された少なくとも1つの接点をさらに含む、請求項4に記載の素子。
- 方法であって、
非C面結晶配向を有するエピタキシャルIII−Nヘテロ構造の活性領域を電子ビームポンピングすることと、
電子ビームによるポンピングに応答して、約250nm未満の波長を有するUV線を活性領域内で発生させることとを含む、方法。 - 方法であって、
バルクAlNブールをスライスし、非C面結晶配向を有する成長表面を与えることと、
前記成長表面上に前記非C面結晶配向を有するエピタキシャルAlN層をエピタキシャル成長させることと、
UV放射活性領域を含むIII−Nヘテロ構造をエピタキシャル成長させることとを含み、
前記ヘテロ構造は、前記エピタキシャルAlN層の上に前記非C面結晶配向を有し、前記UV放射活性領域は、前記活性領域の電子ビームポンピングに応答して紫外線を放射するような構成である、方法。 - 前記UV放射活性領域を含む前記ヘテロ構造をエピタキシャル成長させることは、約50%より多いAl含有量を有する複数のAlGaInN量子井戸をエピタキシャル成長させることを含む、請求項8に記載の方法。
- 前記非C面結晶配向が(20−21)結晶配向である、請求項8に記載の方法。
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US15/600,569 | 2017-05-19 | ||
US15/600,569 US10135227B1 (en) | 2017-05-19 | 2017-05-19 | Electron beam pumped non-c-plane UV emitters |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021072316A (ja) * | 2019-10-29 | 2021-05-06 | Tdk株式会社 | 圧電薄膜素子 |
US11384449B2 (en) * | 2017-06-16 | 2022-07-12 | Crystal Is, Inc. | Two-stage seeded growth of large aluminum nitride single crystals |
WO2023026858A1 (ja) * | 2021-08-24 | 2023-03-02 | ヌヴォトンテクノロジージャパン株式会社 | 窒化物系半導体発光素子 |
WO2023038129A1 (ja) * | 2021-09-09 | 2023-03-16 | 国立大学法人三重大学 | Iii族窒化物発光デバイス、iii族窒化物エピタキシャルウエハ、iii族窒化物発光デバイスを作製する方法 |
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GB202212395D0 (en) * | 2022-08-25 | 2022-10-12 | Crayonano As | Nanostructure/Microstructure device |
Citations (6)
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US10418785B2 (en) | 2019-09-17 |
US20190103729A1 (en) | 2019-04-04 |
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