Effects of Te precipitation on IR transmittance and crystalline quality of as-grown CdZnTe crystals

Jiqian Zhu, Xiaoping Zhang, Biao Li, Junhao Chu

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

The relationship of the Te precipitated phase concentration in the matrix to IR transmittance and crystalline quality of as-grown CdZnTe wafers was investigated by means of various optical and structural techniques including infrared (IR) transmission, differential scanning calorimetry (DSC) and Rutherford backscattering spectroscopy (RBS). Results indicate that Te precipitates/inclusions in CdZnTe matrix reduce IR transmittance, especially at concentration ≥0.6 wt.%. Additionally, the crystalline perfection of near-stoichiometric as-grown CdZnTe is better than that of non-stoichiometric samples, and decreases with increasing second-phase concentration.

Original languageEnglish
Pages (from-to)411-415
Number of pages5
JournalInfrared Physics and Technology
Volume40
Issue number5
DOIs
StatePublished - Oct 1999
Externally publishedYes

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