Modeling the crystal growth of cadmium zinc telluride: Accomplishments and future challenges

Jeffrey J Derby, David Gasperino, Nan Zhang, Andrew Yeckel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations

Abstract

The availability of large, single crystals of cadmium zinc telluride (CZT) with uniform properties would lead to improved performance of gamma radiation detectors fabricated from them. However, even though CZT crystals are the central element of these systems, there remains relatively little fundamental understanding about how these crystals grow and, especially, how crystal growth conditions affect the properties of grown crystals. This paper discusses the many challenges of growing better CZT crystals and how modeling may favorably impact these challenges. Our thesis is that crystal growth modeling is a powerful tool to complement experiments and characterization. It provides an important approach to close the loop between materials discovery, device research, systems performance, and producibility. Specifically, we discuss our efforts to model gradient freeze furnaces used to grow large CZT crystals at Pacific Northwest National Laboratories and Washington State University. Model results are compared with experimental measurements, and the insight gained from modeling is discussed.

Original languageEnglish (US)
Title of host publicationNuclear Radiation Detection Materials - 2009
Pages45-53
Number of pages9
StatePublished - May 14 2010
Event2009 MRS Spring Meeting - San Francisco, CA, United States
Duration: Apr 14 2009Apr 16 2009

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1164
ISSN (Print)0272-9172

Other

Other2009 MRS Spring Meeting
CountryUnited States
CitySan Francisco, CA
Period4/14/094/16/09

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