Characterization of crosstalk in HgCdTe n-on-p photovoltaic infrared arrays

L. Karp; Charles A. Musca; John M. Dell; Lorenzo Faraone

doi:10.1117/12.522217

30 March 2004 Characterization of crosstalk in HgCdTe n-on-p photovoltaic infrared arrays

L. Karp, Charles A. Musca, John M. Dell, Lorenzo Faraone

Proceedings Volume 5274, Microelectronics: Design, Technology, and Packaging; (2004) https://doi.org/10.1117/12.522217
Event: Microelectronics, MEMS, and Nanotechnology, 2003, Perth, Australia

Abstract

In this paper, a theoretical and experimental study is carried out of crosstalk between neighboring devices within a back-side illuminated two dimensional HgCdTe photovoltaic infrared sensing array. Theoretical calculations are performed utilizing Dhar's model, a 2D simulated current approximation to crosstalk. Experimental results stem from spatial photo-response (SPR) measurements, which have been performed on HgCdTe MWIR photodiode arrays. The characterized devices are part of an 8x8 array fabricated using LPE grown p-type HgCdTe, with photodiodes fabricated in-house at The University of Western Australia. A scanning laser microscope is used to measure the spatial photo-response as a function of temperature. The theoretical model uses finite analysis techniques of probabilistic equations describing photogenerated carrier diffusion within the array. The Dhar model is a two dimensional model of simulated currents generated within the array. The basis of this model is the Kammins Fong (KF) model, a simplistic one dimensional representation of similar simulated currents. Inclusion of diffusion characteristics in the Dhar model is shown to result in greater levels of accuracy.

Citation Download Citation

L. Karp, Charles A. Musca, John M. Dell, and Lorenzo Faraone "Characterization of crosstalk in HgCdTe n-on-p photovoltaic infrared arrays", Proc. SPIE 5274, Microelectronics: Design, Technology, and Packaging, (30 March 2004); https://doi.org/10.1117/12.522217

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