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Band gap variation of CdInSe and CdZnS fabricated by high throughput combinatorial growth technique

Z. X. Ma, H. Y. Hao, P. Xiao, L. J. Oehlerking, D. F. Liu, X. J. Zhang, K.-M. Yu, W. Walukiewicz, S. S. Mao, P. Y. Yu, Lei Liu, Peter Y. Yu

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

High energy radiation detector operating at room temperature requires the semiconductors having band-gap energies in the range of 1.35 ∼ 2.5 eV, high Z and high carrier mobility-lifetime (μτ) product. We report here the screening of the band-gap energies of compound semiconductor CdIn2Se4 and ZnCdS doped with Sn and In, prepared by high throughput combinatorial growth technique. It is found that the band-gap energies decrease as [Cd] decreases in Cd1-xIn2+2xSe4+2x, and as In or Sn elements are incorporated in ZnxCd1-xS. For both libraries, the μτ can reach a value on the order of 10-4 cm2/V. These results have demonstrated the strong capability of the combinatorial growth technique in rapid material discovery for room temperature radiation detector applications. © 2011 American Institute of Physics.
Original languageEnglish
Title of host publicationPHYSICS OF SEMICONDUCTORS
Subtitle of host publication30th International Conference on the Physics of Semiconductors
EditorsJisoon Ihm, Hyeonsik Cheong
PublisherAmerican Institute of Physics
Pages1059-1060
VolumePart A
ISBN (Print)9780735410022
DOIs
Publication statusPublished - 23 Dec 2011
Externally publishedYes
Event30th International Conference on the Physics of Semiconductors (ICPS 2010) - Seoul, Korea, Republic of
Duration: 25 Jul 201030 Jul 2010

Publication series

NameAIP Conference Proceedings
Number1
Volume1399
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference30th International Conference on the Physics of Semiconductors (ICPS 2010)
PlaceKorea, Republic of
CitySeoul
Period25/07/1030/07/10

Research Keywords

  • combinatorial technique
  • mobility and lifetime
  • semiconductor band-gap

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