Photoconductive Properties Of A GaAs-A1GaAs Quantumwell Infrared Photodetector

Autor:	Koji Shinohara, Yoshihiro Miyamoto, Ueda Toshiyuki
Rok vydání:	1991
Předmět:	Photocurrent Materials science Condensed Matter::Other Infrared business.industry Photoconductivity Detector Shot noise Photodetector Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Noise (electronics) Optoelectronics business Dark current
Zdroj:	MRS Proceedings. 228
ISSN:	1946-4274 0272-9172
DOI:	10.1557/proc-228-243
Popis:	We investigated the conduction mechanism and performance of GaAs-A1GaAs quantum-well infrared photodetectors and proposed a conduction model consisting of Poole-Frenkel-like emission from wells and carrier relaxation wells. The model agrees with the measured photocurrent and dark current. The detector's noise current is given by a simple shot noise formula. Analysis has shown that the photocurrent and the noise current are inversely proportional to the barrier width, while the dark current is inversely proportional to the square of the barrier width.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2ae369469927dd666ac85189a7a0f540 https://doi.org/10.1557/proc-228-243 Zobrazit plný text záznamu Full text from SpringerLink