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Sensitivity of Zn1-xCdxTe to tera-hertz signals enhanced by structural orderings

  • S. W. Han*
  • , S. H. Kang
  • *Corresponding author for this work
  • Jeonbuk National University

Research output: Contribution to conferenceConference paperpeer-review

Abstract

A better efficiency of sensing tera-hertz signals (T-rays) depends on a better crystalline structure which is obtained by replacing a small amount of Cd on Zn sites of ZnTe crystals. Zn1-xCdxTe (ZCT) crystals were fabricated with an advanced vertical Bridgeman method and the structural properties of the ZCT crystals were studied with high resolution x-ray diffraction (HRXRD) and x-ray absorption fine structure (XAFS) measurements. The Rietveld refinement to the HRXRD data showed that the ZCT crystals at x ~ 0.05 were slightly less disordered than the ZnTe crystals. These results were confirmed by the XAFS data analysis. The better structural orderings can be directly related to the sensing and emitting efficiencies of T-ray by the ZCT crystals.

Original languageEnglish
Title of host publicationScience and Technology of Hybrid Materials
EditorsCheng-Jun Sun, Gan-Moog Chow, Jun Ding, Manoj Gupta, Lynn Kurihara, Lawrence Kabacoff
PublisherTrans Tech Publications Ltd
Pages25-30
Number of pages6
ISBN (Print)9783908451181
DOIs
StatePublished - 2006
EventSymposium S Science and Technology of Hybrid Materials, 2005: 3rd International Conference on Materials for Advanced Technologies, ICMAT 2005 and International Union of Materials Research Societies-9th International Conference on Advanced Materials, IUMRS-ICAM 2005 - Singapore, Singapore
Duration: 2005.07.32005.07.8

Publication series

NameSolid State Phenomena
Volume111
ISSN (Print)1012-0394
ISSN (Electronic)1662-9779

Conference

ConferenceSymposium S Science and Technology of Hybrid Materials, 2005: 3rd International Conference on Materials for Advanced Technologies, ICMAT 2005 and International Union of Materials Research Societies-9th International Conference on Advanced Materials, IUMRS-ICAM 2005
Country/TerritorySingapore
CitySingapore
Period05.07.305.07.8

Keywords

  • Crystal
  • Disorder
  • Semiconductor
  • Structure
  • Tera hertz
  • X-ray diffraction
  • XAFS
  • ZnCdTe

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Physics & Astronomy

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