Journal of Electronic Materials

, Volume 36, Issue 8, pp 1092–1097 | Cite as

Synchrotron X-ray Based Characterization of CdZnTe Crystals

  • Martine C. Duff
  • Douglas B. Hunter
  • Patterson Nuessle
  • David R. Black
  • Harold Burdette
  • Joseph Woicik
  • Arnold Burger
  • Michael Groza
Article

Abstract

Synthetic CdZnTe (CZT) crystals can be used for the room temperature-based detection of gamma radiation. Structural/morphological heterogeneities within CZT, such as secondary phases (namely, precipitates and inclusions), can negatively affect detector performance. We used a synchrotron-based x-ray technique, specifically extended x-ray absorption fine-structure (EXAFS) spectroscopy, to determine whether there are differences on a local structural level between intact CZT of high and low radiation detector performance. These studies were complemented by data on radiation detector performance and transmission infrared (IR) imaging. The EXAFS studies revealed no detectable local structural differences between the two types of CZT materials.

Keywords

IR imaging radiation detectors semiconductors 

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Copyright information

© TMS 2007

Authors and Affiliations

  • Martine C. Duff
    • 1
  • Douglas B. Hunter
    • 1
  • Patterson Nuessle
    • 1
  • David R. Black
    • 2
  • Harold Burdette
    • 2
  • Joseph Woicik
    • 2
  • Arnold Burger
    • 3
  • Michael Groza
    • 3
  1. 1.Savannah River National Laboratory (SRNL)AikenUSA
  2. 2.National Institute of Standards and Technology (NIST)GaithersburgUSA
  3. 3.Fisk UniversityNashvilleUSA

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