High performance superlattice coupled quantum well infrared photodetector for long wavelength infrared detection

Authors
Moon, J Li, SS Lee, JH
Citation
J. Moon et al., High performance superlattice coupled quantum well infrared photodetector for long wavelength infrared detection, ELECTR LETT, 37(20), 2001, pp. 1249-1250
Citations number
7
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
ELECTRONICS LETTERS
ISSN journal
00135194 → ACNP
Volume
37
Issue
20
Year of publication
2001
Pages
1249 - 1250
Database
ISI
SICI code
0013-5194(20010927)37:20<1249:HPSCQW>2.0.ZU;2-#
Abstract
A high performance InGaAs/GaAs/AlGaAs superlattice couple (SC) quantum well infrared photodetector (QWIP) grown on GaAs has been developed for long wa velength infrared detection. The dark I-V and spectral response were measur ed and analysed on this device. Excellent responsivity and detectivity were obtained for this SC-QWIP. The peak detectivity (D*) and collection quantu m efficiency (etag) under background limited performance (BLIP) condition w ere found to be D-BLIP* = 8.36 x 10(10) cm-Hz(1/2)/W and etag = 18.8% at la mbda (p) = 10.5 mum, V-b = 2.5 V, and T = 20 K.