EXPERIMENTAL AND THEORETICAL-STUDIES OF THE PERFORMANCE OF QUANTUM-WELL INFRARED PHOTODETECTORS

被引：115

作者：

ANDREWS, SR

MILLER, BA

机构：

[1] GEC-Marconi Hirst Research Centre, Wembley, Middlesex HA9 7PP, East Lane

来源：

JOURNAL OF APPLIED PHYSICS | 1991年 / 70卷 / 02期

关键词：

D O I：

10.1063/1.349612

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the performance of GaAs/AlGaAs quantum-well infrared detectors exhibiting intersubband absorption in the 8-14-mu-m band. The dark current characteristics have been investigated as a function of barrier width and electron density in the well and compared with a model which takes into account thermionic emission and thermally assisted tunneling in the Wentzel-Kramers-Brillouin approximation. The models gives a good description of the data and is extended to predict the variation of detectivity and background limited operating temperature with structural parameters.

引用

页码：993 / 1003

页数：11