TY - JOUR
T1 - Anomalous DC dark conductivity behaviour in a-Se films
AU - Qamhieh, N.
AU - Willekens, J.
AU - Brinza, M.
AU - Adriaenssens, G. J.
PY - 2003/10/22
Y1 - 2003/10/22
N2 - Thin films of amorphous selenium have been prepared by thermal evaporation. DC conductivity measurements were carried out on these films in the temperature range between 208 and 322 K. Above room temperature, the dark conductivity is thermally activated with activation energy Eσ = 1.05 ± 0.08 eV. For temperatures below 285 K, an increase in the dark current is observed, which is interpreted in terms of a shift of the Fermi level that makes more states available for a hopping process.
AB - Thin films of amorphous selenium have been prepared by thermal evaporation. DC conductivity measurements were carried out on these films in the temperature range between 208 and 322 K. Above room temperature, the dark conductivity is thermally activated with activation energy Eσ = 1.05 ± 0.08 eV. For temperatures below 285 K, an increase in the dark current is observed, which is interpreted in terms of a shift of the Fermi level that makes more states available for a hopping process.
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U2 - 10.1088/0953-8984/15/41/L01
DO - 10.1088/0953-8984/15/41/L01
M3 - Article
AN - SCOPUS:0142139132
SN - 0953-8984
VL - 15
SP - L631-L635
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 41
ER -