Experimental determination of diffusion length in SWIR HgCdTe photodiodes

Jia Jia; Guibin Chen; Xiangyang Li; Haimei Gong

doi:10.1117/12.568163

10 January 2005 Experimental determination of diffusion length in SWIR HgCdTe photodiodes

Jia Jia, Guibin Chen, Xiangyang Li, Haimei Gong

Proceedings Volume 5640, Infrared Components and Their Applications; (2005) https://doi.org/10.1117/12.568163
Event: Photonics Asia, 2004, Beijing, China

Abstract

Minority carrier diffusion length is a key parameter of material quality and gives an indication of diode performance. It is also one important parameter when considering the increase of the effective optical sensitive area caused by the lateral diffusion and the crosstalk between individual detectors on a focal plane array (FPA). In this paper, we perform diffusion length measurements with two methods on short wavelength infrared (SWIR) HgCdTe photovoltaic devices. One method is based on the different behaviors of electrons and holes in a variation magnetic field B and their effects on the saturation current density J0. The other method is an optical characterization technique called Laser Beam Induced Current (LBIC). The results were in good agreement with each other.

Citation Download Citation

Jia Jia, Guibin Chen, Xiangyang Li, and Haimei Gong "Experimental determination of diffusion length in SWIR HgCdTe photodiodes", Proc. SPIE 5640, Infrared Components and Their Applications, (10 January 2005); https://doi.org/10.1117/12.568163

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available