Prospects of In/CdTe X- and γ-ray detectors with MoO Ohmic contacts

Olena L. Maslyanchuk, Mykhailo M. Solovan, Eduard V. Maistruk, Viktor V. Brus, Pavlo D. Maryanchuk, Volodymyr A. Gnatyuk, Toru Aoki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The present paper analyzes the charge transport mechanisms and spectrometric properties of In/CdTe/MoOx heterojunctions prepared by magnetron sputtering of indium and molybdenum oxide thin films onto semi-insulating p-type single-crystal CdTe semiconductor, produced by Acrorad Co. Ltd. Current-voltage characteristics of the detectors at different temperatures were investigated. The charge transport mechanisms in the heterostructures under investigation were determined: the generation-recombination in the space charge region (SCR) at relatively low voltages and the space charge limited currents at high voltages. The spectra of 137Cs and 241Am isotopes taken at different applied bias voltages are presented. It is shown that the In/CdTe/MoOx structures can be used as X/γ-ray detectors in the spectrometric mode.

Original languageEnglish
Title of host publicationThirteenth International Conference on Correlation Optics
EditorsOleg V. Angelsky
PublisherSPIE
ISBN (Electronic)9781510617278
DOIs
Publication statusPublished - 2018
Externally publishedYes
Event13th International Conference on Correlation Optics - Chernivtsi, Ukraine
Duration: Sep 11 2017Sep 15 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10612
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference13th International Conference on Correlation Optics
CountryUkraine
CityChernivtsi
Period9/11/179/15/17

Keywords

  • CdTe diodes
  • Charge transport mechanisms
  • Energy spectrum
  • Generation-recombination in the space charge region
  • Minority carrier injection
  • Space charge limited current
  • X- and γ-ray detectors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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