Degradation effects in TlBr single crystals under prolonged bias voltage

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    Abstract

    Electrical properties of TlBr purified by hydrothermal annealing in pure water were studied by I-V, capacitance and photocurrent measurements using Ti-electrodes which were deposited by electron-beam evaporation. Time characteristics of the current during the aging were recorded under fixed voltage (0-200 V) at different temperatures 277-353 K. The samples were additionally characterised by the X-ray powder diffraction and rocking curve methods. The degradation of TlBr was studied by scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry (EDS). The composition at the electrode area was observed to be different for the negative and positive sides. (C) 2007 Elsevier B.V. All rights reserved.
    Original languageEnglish
    JournalNuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
    Volume576
    Pages (from-to)10-14
    Number of pages5
    ISSN0168-9002
    DOIs
    Publication statusPublished - 2007
    MoE publication typeA4 Article in conference proceedings
    EventUnknown host publication - , Netherlands
    Duration: 1 Jan 1800 → …

    Fields of Science

    • 116 Chemical sciences

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