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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 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.

Inventors:
 [1];  [2];  [3];  [4]
  1. (5420 Lenore Ave., Livermore, CA 94550)
  2. (753 Adkisson La., Nashville, TN 37205)
  3. (7800 River Fork Dr., Nashville, TN 37221)
  4. (6535 Premier Dr., Apt. A7, Nashville, TN 37209)
Issue Date:
Research Org.:
SANDIA CORP
OSTI Identifier:
872427
Patent Number(s):
5933706
Assignee:
James, Ralph (5420 Lenore Ave., Livermore, CA 94550);Burger, Arnold (753 Adkisson La., Nashville, TN 37205);Chen, Kuo-Tong (7800 River Fork Dr., Nashville, TN 37221);Chang, Henry (6535 Premier Dr., Apt. A7, Nashville, TN 37209) SNL
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; surface; treatment; cadmium; zinc; telluride; crystal; cdznte; czt; reduces; roughness; increases; planarity; provides; oxide; coating; reduce; leakage; currents; improve; resolution; step; process; disclosed; etching; solution; lactic; acid; bromine; ethylene; glycol; following; conventional; methanol; etch; attachment; electrical; contacts; oxidizing; leakage currents; surface leakage; ethylene glycol; electrical contacts; lactic acid; oxide coating; electrical contact; surface roughness; cadmium zinc; leakage current; surface treatment; step process; reduce surface; zinc telluride; reduces surface; crystal surface; czt crystal; telluride crystal; /438/

Citation Formats

James, Ralph, Burger, Arnold, Chen, Kuo-Tong, and Chang, Henry. Method for surface treatment of a cadmium zinc telluride crystal. United States: N. p., 1999. Web.
James, Ralph, Burger, Arnold, Chen, Kuo-Tong, & Chang, Henry. Method for surface treatment of a cadmium zinc telluride crystal. United States.
James, Ralph, Burger, Arnold, Chen, Kuo-Tong, and Chang, Henry. Fri . "Method for surface treatment of a cadmium zinc telluride crystal". United States. https://www.osti.gov/servlets/purl/872427.
@article{osti_872427,
title = {Method for surface treatment of a cadmium zinc telluride crystal},
author = {James, Ralph and Burger, Arnold and Chen, Kuo-Tong and Chang, Henry},
abstractNote = {A method for treatment of the surface of a CdZnTe (CZT) crystal 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

Patent:

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