Passivation of semi-insulating polycrystalline CdZnTe films

  • Kim, Ki Hyun; 
  • Won, Jae Ho; 
  • Cho, Shin Hang; 
  • Suh, Jong Hee; 
  • Cho, Pyong Kon; 
  • ... Hong, Jinki; 
  • 외 2명
Citations

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초록

Surface effects play an important role in the overall performance of X-ray detector. The effects of passivation with (NH4)(2)S 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 (HN4)(2)S effectively removes the Te-oxide layers on the CdZnTe surface, reduces the surface leakage current and gives higher energy resolution by suppressing 1/f noise.

키워드

sulfur passivation; leakage current; CdTeS; heterojunction; semi-insulating CdZnTe; inter-pixel resistance; 1/f noise; SULFUR TREATMENT; RAY; DETECTOR; QUALITY; SYSTEM
제목
Passivation of semi-insulating polycrystalline CdZnTe films
저자
Kim, Ki Hyun; Won, Jae Ho; Cho, Shin Hang; Suh, Jong Hee; Cho, Pyong Kon; Hong, Jinki; Kim, Sun Ung; Han, You Ree
발행일
2008-07
유형
Article; Proceedings Paper
저널명
Journal of the Korean Physical Society
권
53
호
1
페이지
317 ~ 321