PHOTOVOLTAIC AND PHOTOCONDUCTIVE DUAL-MODE OPERATION GAAS QUANTUM-WELL INFRARED PHOTODETECTOR FOR 2-BAND DETECTION

被引：25

作者：

WANG, YH ^{[1
]}

LI, SS ^{[1
]}

PIN, H ^{[1
]}

机构：

[1] GE,ELECTR LAB,SYRACUSE,NY 13221

来源：

APPLIED PHYSICS LETTERS | 1993年 / 62卷 / 01期

关键词：

D O I：

10.1063/1.108783

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new photoconductive (PC) and photovoltaic (PV) dual-mode operation quantum well infrared photodetection (DM-QWIP) using an enlarged GaAs (110 angstrom) quantum well and enlarged Al0.25Ga0.75As (875 angstrom) barrier layer has been developed for two-color intersubband detection. The detection scheme uses transitions from the ground-state and the first excited-state inside the enlarged GaAs quantum well to the continuum states slightly above the AlGaAs barrier layers. The detectivity D(lambda)* for the PV mode was found to be 1.5 X 10(9) square-root Hz/W at the peak response wavelength lambda(p)=7.7 mum and T=77 K, while the values of D(lambda)* for the PC mode were found to be 2X10(10), 1X10(10) cm square-root Hz/W for V(b)=1,2 V at lambda(p)=12 mum and T=77 K, respectively.

引用

收藏

页码：93 / 95

页数：3

相关论文

共 17 条

[1] EXCHANGE INTERACTION EFFECTS IN QUANTUM-WELL INFRARED DETECTORS AND ABSORBERS [J].

CHOE, JW ;

O, BS ;

BANDARA, KMSV ;

COON, DD .

APPLIED PHYSICS LETTERS, 1990, 56 (17) :1679-1681

[2]

FASKA TS, 1992, APR INN INFR PHOT WO

[3] VOLTAGE-CONTROLLED TUNABLE GAAS/ALGAAS MULTISTACK QUANTUM-WELL INFRARED DETECTOR [J].

GRAVE, I ;

SHAKOURI, A ;

KUZE, N ;

YARIV, A .

APPLIED PHYSICS LETTERS, 1992, 60 (19) :2362-2364

[4] INTERSUBBAND ABSORPTION AND INFRARED MODULATION IN GAAS/ALGAAS SINGLE QUANTUM WELLS [J].

KANE, MJ ;

EMENY, MT ;

APSLEY, N ;

WHITEHOUSE, CR ;

LEE, D .

SUPERLATTICES AND MICROSTRUCTURES, 1989, 5 (04) :587-589

[5] PHOTOVOLTAIC DETECTION OF INFRARED LIGHT IN A GAAS ALGAAS SUPERLATTICE [J].

KASTALSKY, A ;

DUFFIELD, T ;

ALLEN, SJ ;

HARBISON, J .

APPLIED PHYSICS LETTERS, 1988, 52 (16) :1320-1322

[6]

KOCK A, 1992, APPL PHYS LETT, V60, P2011, DOI 10.1063/1.107127

[7] BROAD-BAND 8-12-MU-M HIGH-SENSITIVITY GAAS QUANTUM WELL INFRARED PHOTODETECTOR [J].

LEVINE, BF ;

HASNAIN, G ;

BETHEA, CG ;

CHAND, N .

APPLIED PHYSICS LETTERS, 1989, 54 (26) :2704-2706

[8] PHOTOVOLTAIC GAAS QUANTUM-WELL INFRARED DETECTORS AT 4.2 MU-M USING INDIRECT ALXGA1-X BARRIERS [J].

LEVINE, BF ;

GUNAPALA, SD ;

KOPF, RF .

APPLIED PHYSICS LETTERS, 1991, 58 (14) :1551-1553

[9] NEW 10 MU-M INFRARED DETECTOR USING INTERSUBBAND ABSORPTION IN RESONANT TUNNELING GAALAS SUPERLATTICES [J].

LEVINE, BF ;

CHOI, KK ;

BETHEA, CG ;

WALKER, J ;

MALIK, RJ .

APPLIED PHYSICS LETTERS, 1987, 50 (16) :1092-1094

[10] HIGH-SENSITIVITY LOW DARK CURRENT 10-MU-M GAAS QUANTUM-WELL INFRARED PHOTODETECTORS [J].

LEVINE, BF ;

BETHEA, CG ;

HASNAIN, G ;

SHEN, VO ;

PELVE, E ;

ABBOTT, RR ;

HSIEH, SJ .

APPLIED PHYSICS LETTERS, 1990, 56 (09) :851-853