In(Ga)As Quantum Rings for Terahertz Detectors
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概要
- 論文の詳細を見る
The In(Ga)As quantum ring infrared photodetector (QRIP) were investigated. The quantum ring (QR) is transformed from 500 °C grown 2.2 ML quantum dot (QD) with QD annealing time ${\sim}30$ s. The QRs show the broad PL spectrum which is blue shifted from QD about 100 meV. The resultant QRIP is a broadband terahertz detector. The response extends from 3 to 100 THz with peak responsivity of 127 mA/W at 23 μm which has a spectral detectivity of $2.3 \times 10^{11}$ cm Hz1/2/W at 10 K under 1.2 V bias.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2008-04-25
著者
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Lee Si-chen
Department Of Electrical Engineering & Graduate Institute Of Electronics Engineering National Ta
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DAI Jong-Horng
Department of Electrical Engineering & Graduate Institute of Electronics Engineering, National Taiwa
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LEE Jheng-Han
Department of Electrical Engineering & Graduate Institute of Electronics Engineering, National Taiwa
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Lee Jheng-Han
Department of Electrical Engineering and Graduate Institute of Electronics Engineering, National Taiwan University, Taipei 10617, Taiwan
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Lee Si-Chen
Department of Electrical Engineering and Graduate Institute of Electronics Engineering, National Taiwan University, Taipei 10617, Taiwan
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Lin Yi-Lung
Department of Electrical Engineering and Graduate Institute of Electronics Engineering, National Taiwan University, Taipei 10617, Taiwan
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