IEICE Electronics Express
Online ISSN : 1349-2543
LETTER
Room temperature operation of 1.55µm wavelength-range GaN/AlN quantum well intersubband photodetectors
Hiroyuki UchidaSatoshi MatsuiPetter HolmströmAkihiko KikuchiKatsumi Kishino
Author information
JOURNALS FREE ACCESS

2005 Volume 2 Issue 22 Pages 566-571

Details
Abstract

The room-temperature operation of a GaN/AlN quantum well infrared photodetector (QWIP) using the intersubband transition (ISBT) in a GaN/AlN multiple quantum well (MQW) was demonstrated for the first time. The GaN/AlN QWIP was operated under DC biasing with a vertically conductive geometry to the MQW layer. A clear photoinduced response was observed for P polarized 1.47µm light irradiation. Dependencies of the photoresponse on the applied DC bias voltage, and the polarization and wavelength of incident light were evaluated for the GaN/AlN QWIP. The maximum responsivity was estimated to be 0.11mA/W for a DC bias of 15V at room temperature.

Information related to the author
© 2005 by The Institute of Electronics, Information and Communication Engineers
Previous article
feedback
Top