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

Patent ·
OSTI ID:678612

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.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC04-94AL85000
Assignee:
SNL; SCA: 360601; PA: EDB-99:085325; SN: 99002124537
Patent Number(s):
US 5,933,706/A/
Application Number:
PAN: 8-864,133
OSTI ID:
678612
Resource Relation:
Other Information: PBD: 3 Aug 1999
Country of Publication:
United States
Language:
English