Carrier transport properties in high resistivity polycrystalline CdZnTe material

Ki Hyun Kim, Soo Yong Ahn, Se Young An, Jin Ki Hong, Yun Yi, Sun Ung Kim

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The electrical properties of polycrystalline CdZnTe (Zn = 4%) having high resistivity (3.3 × 109 Ω cm) were investigated by using the time-of-flight technique. We have found that the average drift mobility of as-deposited polycrystalline CdZnTe samples is 1.21 cm2/V s and the electron trapping time is 4.6 μs. In a comparison of annealed samples at different conditions, the variation of resistivity in polycrystalline CdZnTe is considered to be mainly related to the fluctuation of carrier concentration, which originates from the change of density in deep level.

Original languageEnglish
Pages (from-to)296-299
Number of pages4
JournalCurrent Applied Physics
Volume7
Issue number3
DOIs
Publication statusPublished - 2007 Mar

Keywords

  • Annealing
  • CdZnTe
  • Compensation
  • High resistivity
  • Mobility-lifetime product
  • Polycrystalline
  • Time-of-flight

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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