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Title: Method for surface treatment of a cadmium zinc telluride crystal

Abstract

A method for treatment of the surface of a CdZnTe (CZT) crystal is disclosed that reduces surface roughness (increases surface planarity) and provides an oxide coating to reduce surface leakage currents and thereby, improve resolution. A two step process is disclosed, etching the surface of a CZT crystal with a solution of lactic acid and bromine in ethylene glycol, following the conventional bromine/methanol etch treatment, and after attachment of electrical contacts, oxidizing the CZT crystal surface. 3 figs.

Inventors:
; ; ;
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
678612
Patent Number(s):
5933706
Application Number:
PAN: 8-864,133
Assignee:
SNL; SCA: 360601; PA: EDB-99:085325; SN: 99002124537
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 3 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CADMIUM TELLURIDES; ZINC TELLURIDES; SURFACE TREATMENTS; ROUGHNESS; LEAKAGE CURRENT; ETCHING; ELECTRIC CONTACTS; OXIDATION

Citation Formats

James, R, Burger, A, Chen, K T, and Chang, H. Method for surface treatment of a cadmium zinc telluride crystal. United States: N. p., 1999. Web.
James, R, Burger, A, Chen, K T, & Chang, H. Method for surface treatment of a cadmium zinc telluride crystal. United States.
James, R, Burger, A, Chen, K T, and Chang, H. Tue . "Method for surface treatment of a cadmium zinc telluride crystal". United States.
@article{osti_678612,
title = {Method for surface treatment of a cadmium zinc telluride crystal},
author = {James, R and Burger, A and Chen, K T and Chang, H},
abstractNote = {A method for treatment of the surface of a CdZnTe (CZT) crystal is disclosed that reduces surface roughness (increases surface planarity) and provides an oxide coating to reduce surface leakage currents and thereby, improve resolution. A two step process is disclosed, etching the surface of a CZT crystal with a solution of lactic acid and bromine in ethylene glycol, following the conventional bromine/methanol etch treatment, and after attachment of electrical contacts, oxidizing the CZT crystal surface. 3 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {8}
}