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Title: Simulation of Electric Field in Semi Insulating Au/CdTe/Au Detector under Flux

Abstract

We report our simulations on the profile of the electric field in semi insulating CdTe and CdZnTe with Au contacts under radiation flux. The type of the space charge and electric field distribution in the Au/CdTe/Au structure is at high fluxes result of a combined influence of charge formed due to band bending at the electrodes and from photo generated carriers, which are trapped at deep levels. Simultaneous solution of drift-diffusion and Poisson equations is used for the calculation. We show, that the space charge originating from trapped photo-carriers starts to dominate at fluxes 10{sup 15}-10{sup 16}cm{sup -2}s{sup -1}, when the influence of contacts starts to be negligible.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
DOE - National Nuclear Security Administration
OSTI Identifier:
1013439
Report Number(s):
BNL-90851-2009-CP
NN2001000; TRN: US201110%%661
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Conference
Resource Relation:
Conference: SPIE Optics and Photonics; San Diego, CA; 20090802 through 20090806
Country of Publication:
United States
Language:
English
Subject:
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; BENDING; DISTRIBUTION; ELECTRIC FIELDS; ELECTRODES; OPTICS; POISSON EQUATION; RADIATION FLUX; SIMULATION; SPACE CHARGE; CdTe; detectors; recombination

Citation Formats

Franc, J, James, R, Grill, R, Kubat, J, Belas, E, Hoschl, P, Moravec, P, and Praus, P. Simulation of Electric Field in Semi Insulating Au/CdTe/Au Detector under Flux. United States: N. p., 2009. Web.
Franc, J, James, R, Grill, R, Kubat, J, Belas, E, Hoschl, P, Moravec, P, & Praus, P. Simulation of Electric Field in Semi Insulating Au/CdTe/Au Detector under Flux. United States.
Franc, J, James, R, Grill, R, Kubat, J, Belas, E, Hoschl, P, Moravec, P, and Praus, P. 2009. "Simulation of Electric Field in Semi Insulating Au/CdTe/Au Detector under Flux". United States. https://www.osti.gov/servlets/purl/1013439.
@article{osti_1013439,
title = {Simulation of Electric Field in Semi Insulating Au/CdTe/Au Detector under Flux},
author = {Franc, J and James, R and Grill, R and Kubat, J and Belas, E and Hoschl, P and Moravec, P and Praus, P},
abstractNote = {We report our simulations on the profile of the electric field in semi insulating CdTe and CdZnTe with Au contacts under radiation flux. The type of the space charge and electric field distribution in the Au/CdTe/Au structure is at high fluxes result of a combined influence of charge formed due to band bending at the electrodes and from photo generated carriers, which are trapped at deep levels. Simultaneous solution of drift-diffusion and Poisson equations is used for the calculation. We show, that the space charge originating from trapped photo-carriers starts to dominate at fluxes 10{sup 15}-10{sup 16}cm{sup -2}s{sup -1}, when the influence of contacts starts to be negligible.},
doi = {},
url = {https://www.osti.gov/biblio/1013439}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Aug 02 00:00:00 EDT 2009},
month = {Sun Aug 02 00:00:00 EDT 2009}
}

Conference:
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