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Photoluminescence and electrical characteristics of arsenic-doped HgCdTe

  • Xiao Hua Zhang*
  • , Lu Chen
  • , Tie Lin
  • , Li He
  • , Shao Ling Guo
  • , Jun Hao Chu
  • *Corresponding author for this work
  • CAS - Shanghai Institute of Technical Physics

Research output: Contribution to journalArticlepeer-review

Abstract

Electrical and optical properties of HgCdTe are crucial for detectors. Infrared photoluminescence (PL) spectra in the temperature range of 11-300K and Hall data were recorded on the arsenic-doped narrow-gap HgCdTe epilayers. Curve fittings of PL spectra indicate that AsTe, VHg, TeHg-VHg and TeHg exist in the arsenic-doped HgCdTe epilayers after the two-step annealing. More TeHg-VHg pairs are created when the dopant concentration is increased. Analysis of temperature-dependent Hall data verifies the existence of TeHg, which lowers the mobility of the material.

Original languageEnglish
Pages (from-to)407-410
Number of pages4
JournalHongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves
Volume31
Issue number5
DOIs
StatePublished - Oct 2012

Keywords

  • Carrier concentration
  • HgCdTe
  • Photoluminescence

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