Infrared photoluminescence characterization of HgCdTe film

  • Yong Chang*
  • , Junhao Chu
  • , Rongbin Ji
  • , X. G. Wang
  • , Gensheng Huang
  • , J. F. Li
  • , Li He
  • , Dingyuan Tang
  • *Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

The Fourier transform and double modulation Fourier transform photoluminescence measurements were performed on HgCdTe films from liquid helium temperature to room temperature in the infrared band to 10 micrometers where the influence from room temperature background blackbody emission is very strong. From the band to band transition photoluminescence peak, which dominated in HgCdTe films with the small cadmium composition, the cadmium composition, crystal-quality-related band tail energy, and the active energy of the non-radiative Shockly-Read center, are obtained. The photoluminescence characterization method is also used to investigate the intentionally doped impurity behavior in HgCdTe. The amphoteric impurity behavior of As implanted in HgCdTe is discovered with the donor and acceptor energy level of 8.5 meV and 31.5 meV, respectively. The Ag impurity level of 70 meV in MBE HgCdTe is also found.

Original languageEnglish
Pages (from-to)182-185
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4086
DOIs
StatePublished - 2000
Externally publishedYes
Event4th International Conference on Thin Film Physics and Applications - Shanghai, China
Duration: 8 May 200011 May 2000

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