Passivation of semi-insulating polycrystalline cdznte films

Kihyun Kim, Jae Ho Won, Shin Hang Cho, Jong Hee Suh, Pyong Kon Cho, Jinki Hong, Sun Ung Kim, You Ree Han

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Surface effects play an important role in the overall performance of X-ray detector. The effects of passivation with (NH4)2S on semi-insulating polycrystalline CdZnTe thick films were analyzed with X-ray photoelectron spectroscopy (XPS), photoconductive decay (PCD), noise power spectrum and pulse height spectra measurements. Sulfur passivation with (HN 4)2S effectively removes the Teoxide layers on the CdZnTe surface, reduces the surface leakage current and gives higher energy resolution by suppressing 1/f noise.

Original languageEnglish
Pages (from-to)317-321
Number of pages5
JournalJournal of the Korean Physical Society
Volume53
Issue number1
DOIs
Publication statusPublished - 2008 Jan 1

Fingerprint

passivity
noise spectra
pulse amplitude
thick films
power spectra
leakage
x rays
sulfur
photoelectron spectroscopy
detectors
decay
energy

Keywords

  • 1/f noise
  • CdTeS
  • Heterojunction
  • Inter-pixel resistance
  • Leakage current
  • Semi-insulating CdZnTe
  • Sulfur passivation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Kim, K., Won, J. H., Cho, S. H., Suh, J. H., Cho, P. K., Hong, J., ... Han, Y. R. (2008). Passivation of semi-insulating polycrystalline cdznte films. Journal of the Korean Physical Society, 53(1), 317-321. https://doi.org/10.3938/jkps.53.317

Passivation of semi-insulating polycrystalline cdznte films. / Kim, Kihyun; Won, Jae Ho; Cho, Shin Hang; Suh, Jong Hee; Cho, Pyong Kon; Hong, Jinki; Kim, Sun Ung; Han, You Ree.

In: Journal of the Korean Physical Society, Vol. 53, No. 1, 01.01.2008, p. 317-321.

Research output: Contribution to journalArticle

Kim, K, Won, JH, Cho, SH, Suh, JH, Cho, PK, Hong, J, Kim, SU & Han, YR 2008, 'Passivation of semi-insulating polycrystalline cdznte films', Journal of the Korean Physical Society, vol. 53, no. 1, pp. 317-321. https://doi.org/10.3938/jkps.53.317
Kim, Kihyun ; Won, Jae Ho ; Cho, Shin Hang ; Suh, Jong Hee ; Cho, Pyong Kon ; Hong, Jinki ; Kim, Sun Ung ; Han, You Ree. / Passivation of semi-insulating polycrystalline cdznte films. In: Journal of the Korean Physical Society. 2008 ; Vol. 53, No. 1. pp. 317-321.
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