Title: Steady-state photoconductivity in amorphous germanium selenide films
Authors: Qamhieh, N ×
Adriaenssens, Guy #
Issue Date: Nov-2001
Series Title: Journal of Non Crystalline Solids vol:292 issue:1-3 pages:80-87
Abstract: Steady-state photoconductivity measurements are carried out on GexSe100-x semiconductors, where 20 less than or equal to x less than or equal to 50, in the temperature between 290 and 470 K. The conductivity parameters vary with composition and exhibit extrema near the chemical threshold composition. at coordination number <r > = 2.67 where x = 33%. The temperature and light intensity dependence of the photoconductivity ensure the presence of mono- and bimolecular recombination regions. The measured activation energies in the two regions suggest energy levels of recombination centers in the gap at 0.66 and about 1.37 eV from the top of the valence band. (C) 2001 Elsevier Science B.V. All rights reserved
ISSN: 0022-3093
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Semiconductor Physics Section
× corresponding author
# (joint) last author

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