Comparison of TSC measurements performed on PbI2 samples prepared in different ways

The role of preparation and growth on the presence of energy levels in the band gap of lead iodide crystallized material has been investigated by means of thermally stimulated current measurements. The most significant difference is concerned with the defect introduced by the lead vacancy: the assoc...

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Bibliographic Details
Published in:Physica status solidi. A, Applications and materials science Applications and materials science, 2007-02, Vol.204 (2), p.581-585
Main Author: Ponpon, J. P.
Format: Article
Language:English
Subjects:
71.55.Ht
72.20.Jv
81.05.Hd
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Conductivity phenomena in semiconductors and insulators
Electronic transport in condensed matter
Exact sciences and technology
Low-field transport and mobility
piezoresistance
Physics
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Summary:The role of preparation and growth on the presence of energy levels in the band gap of lead iodide crystallized material has been investigated by means of thermally stimulated current measurements. The most significant difference is concerned with the defect introduced by the lead vacancy: the associated energy levels are always present when the material has experienced a molten state at any step of its preparation. Conversely, it does not appear or at a very low concentration in samples fabricated at low temperature from chemically synthesized powder. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:1862-6300
1862-6319
DOI:10.1002/pssa.200622267