Wavelength-tunable InGaAs-capped quantum-dot infrared photodetectors for multi-color detection

標題:	Wavelength-tunable InGaAs-capped quantum-dot infrared photodetectors for multi-color detection
作者:	Lin, Wei-Hsun Lin, Shih-Yen Tseng, Chi-Che Kung, Shu-Yen Chao, Kuang-Ping Mai, Shu-Cheng Wu, Meng-Chyi 光電工程學系 Department of Photonics
關鍵字:	Quantum-dot infrared photodetectors;Quantum dots;Multi-color detection
公開日期:	1-May-2011
摘要:	A two-terminal quantum-dot infrared photodetector (QDIP) with stacked 5-period InAs/GaAs and InGaAs-capped InAs/GaAs QD structures is investigated in this paper. The device has exhibited distinct responses at mid-wavelength and long-wavelength infrared regions under positive and negative biases, respectively. Also observed for the device are the equal normal absorption ratios under different voltage biases for the device under either MWIR or LWIR ranges. The device has revealed its potential in the application of voltage-tunable and multi-color detections. (C) 2010 Elsevier B.V. All rights reserved.
URI:	http://dx.doi.org/10.1016/j.infrared.2010.12.017 http://hdl.handle.net/11536/31508
ISSN:	1350-4495
DOI:	10.1016/j.infrared.2010.12.017
期刊:	INFRARED PHYSICS & TECHNOLOGY
Volume:	54
Issue:	3
起始頁:	220
結束頁:	223
Appears in Collections:	Conferences Paper

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