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Title: Surface Treatment And Protection Method For Cadium Zinc Telluride Crystals

Abstract

A method for treatment of the surface of a CdZnTe (CZT) crystal that provides a native dielectric coating to reduce surface leakage currents and thereby, improve the resolution of instruments incorporating detectors using CZT crystals. A two step process is disclosed, etching the surface of a CZT crystal with a solution of the conventional bromine/methanol etch treatment, and after attachment of electrical contacts, passivating the CZT crystal surface with a solution of 10 w/o NH4F and 10 w/o H2O2 in water.

Inventors:
 [1];  [2];  [1];  [2]
  1. (Nashville, TN)
  2. (Livermore, CA)
Publication Date:
Research Org.:
Sandia Corporation
OSTI Identifier:
879901
Patent Number(s):
US 7,001,849
Application Number:
10/326430
Assignee:
Sandia National Laboratories (Livermore, CA) OSTI
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Wright, Gomez W., James, Ralph B., Burger, Arnold, and Chinn, Douglas A. Surface Treatment And Protection Method For Cadium Zinc Telluride Crystals. United States: N. p., 2006. Web.
Wright, Gomez W., James, Ralph B., Burger, Arnold, & Chinn, Douglas A. Surface Treatment And Protection Method For Cadium Zinc Telluride Crystals. United States.
Wright, Gomez W., James, Ralph B., Burger, Arnold, and Chinn, Douglas A. Tue . "Surface Treatment And Protection Method For Cadium Zinc Telluride Crystals". United States. https://www.osti.gov/servlets/purl/879901.
@article{osti_879901,
title = {Surface Treatment And Protection Method For Cadium Zinc Telluride Crystals},
author = {Wright, Gomez W. and James, Ralph B. and Burger, Arnold and Chinn, Douglas A.},
abstractNote = {A method for treatment of the surface of a CdZnTe (CZT) crystal that provides a native dielectric coating to reduce surface leakage currents and thereby, improve the resolution of instruments incorporating detectors using CZT crystals. A two step process is disclosed, etching the surface of a CZT crystal with a solution of the conventional bromine/methanol etch treatment, and after attachment of electrical contacts, passivating the CZT crystal surface with a solution of 10 w/o NH4F and 10 w/o H2O2 in water.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {2}
}

Patent:

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