Characterization and performance of a GaAs/Al0.3Ga0.7As quantum-well infrared photodetector

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	Characterization and performance of a GaAs/Al0.3Ga0.7As quantum-well infrared photodetector
	Huang, XL ; Shin, YG ; Suh, EK ; Lee, HJ ; Huang, Q
刊名	JOURNAL OF THE KOREAN PHYSICAL SOCIETY
	1997
卷号	31 期号:5 页码:781
关键词	INTERSUBBAND ABSORPTION ELECTRIC-FIELD TRANSITIONS RESONANCES CONTINUUM
ISSN号	0374-4884
中文摘要	A 200-mu m-diameter quantum-well infrared photodetector with 20 periods of the GaAs(45 Angstrom)/Al0.3Ga0.7As (260 Angstrom) multiple quantum well has been prepared and characterized. The absorption spectrum at 290 K is peaked at 8.78 mu m with a full width at half maximum (FWHM) of 1.42 mu m. The peak changes to 8.36 mu m with a 0.90-mu m FWHM at 10 K. In the photocurrent (PC) spectrum at 80 K, a main peak is observed at 8.34 mu m, and a shoulder peak appears at 7.8 mu m with increasing bias. The FWHM of the main peak in PC spectrum increases from 0.72 mu m to 1.32 mu m as the bias voltage increases from 0 to 2 V. The blackbody responsivity almost linearly increases to 7.4 mA/W at 1 V and then saturates from 1 to 1.8 V, above which it reaches avalanche, while the noise current exhibits avalanche at lower bias than the response does. At 1 V, the optical gain and the quantum efficiency are estimated to be 0.5 and 1.8%, respectively. The peak detectivity of the quantum well infrared photodetector is 2.1 x 10(9) cmHz(1/2)/W.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/34616]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Huang, XL,Shin, YG,Suh, EK,et al. Characterization and performance of a GaAs/Al0.3Ga0.7As quantum-well infrared photodetector[J]. JOURNAL OF THE KOREAN PHYSICAL SOCIETY,1997,31(5):781.
APA	Huang, XL,Shin, YG,Suh, EK,Lee, HJ,&Huang, Q.(1997).Characterization and performance of a GaAs/Al0.3Ga0.7As quantum-well infrared photodetector.JOURNAL OF THE KOREAN PHYSICAL SOCIETY,31(5),781.
MLA	Huang, XL,et al."Characterization and performance of a GaAs/Al0.3Ga0.7As quantum-well infrared photodetector".JOURNAL OF THE KOREAN PHYSICAL SOCIETY 31.5(1997):781.