CdTe based X/γ-ray detector with MoOx contacts

O. L. Maslyanchuk, M. M. Solovan, V. V. Brus, E. V. Maistruk, S. V. Solodin

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The electrical characteristics of the Mo-MoOx/p-CdTe/MoOx-Mo heterostructures, manufactured by magnetron sputtering of molybdenum oxide thin films on CdTe semi-insulating crystals produced by Acrorad Co. Ltd were studied. Optimization of substrate conditions pretreatment and contacts deposition allowed to reduce the dark current of the detectors compared with earlier analogs and, consequently, to improve its spectrometric characteristics. The charge transport mechanisms for ensuring the low values of reverse currents in the structures were determined: the generation-recombination in the space charge region (SCR) at relatively low voltages and currents limited by the space charge at high voltages. It is shown that the heterostructure Mo-MoOx/p-CdTe/MoOx-Mo can be used for practical applications in the X- and γ-ray detectors.

Original languageEnglish
Article number03035
JournalJournal of Nano- and Electronic Physics
Volume9
Issue number3
DOIs
Publication statusPublished - 2017
Externally publishedYes

Keywords

  • CdTe
  • Charge transport
  • MoO
  • Radiation detector
  • Schottky diodes
  • Space-charge-limited currents

ASJC Scopus subject areas

  • Radiation
  • Materials Science(all)
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'CdTe based X/γ-ray detector with MoO<sub>x</sub> contacts'. Together they form a unique fingerprint.

Cite this