Submonolayer quantum dot infrared photodetector

被引：71
|
作者：
Ting, David Z. -Y. [1 ]
Bandara, Sumith V. [1 ]
Gunapala, Sarath D. [1 ]
Mumolo, Jason M. [1 ]
Keo, Sam A. [1 ]
Hill, Cory J. [1 ]
Liu, John K. [1 ]
Blazejewski, Edward R. [1 ]
Rafol, Sir B. [2 ]
Chang, Yia-Chung [3 ]
机构：
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[2] Infravis Syst, Altadena, CA 91001 USA
[3] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
来源：
APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 11期
关键词：
infrared detectors; monolayers; photodetectors; quantum dots; DETECTIVITY; ARRAYS; WELL;
D O I：
10.1063/1.3095812
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We describe the concept of the submonolayer quantum dot infrared photodetector (SML QDIP) and report experimental device results on long-wavelength infrared detection. An SML QDIP structure was fabricated into megapixel focal plane arrays, which produced clear infrared images up to 80 K. Detectors in the focal plane showed a responsivity peak at 7.8 mu m and noise equivalent temperature difference of 33 mK at 70 K.
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页数：3
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