TY - JOUR
T1 - Dual-beam photocurrent spectra in undoped a-Si:H
T2 - anomalous band, optical transition energy, and correlation energy
AU - Liu, J. Z.
AU - Lewen, G.
AU - Conde, J. P.
AU - Roca i Cabarrocas, P.
PY - 1993/12/2
Y1 - 1993/12/2
N2 - It is shown that the anomalous band in dual-beam CPM (DBCPM) spectra of a-Si:H results from a combination of two processes: photocurrent enhancement due to excitations by the probe light from the valence band to the D+ states, and photocucurrent reduction due to excitations by the probe light from the D0 states to the conduction band. Using the DBCPM spectra, we measured the optical transition energy (0.77 eV) and the electron correlation energy (0.16 eV) for the filled D- defects.
AB - It is shown that the anomalous band in dual-beam CPM (DBCPM) spectra of a-Si:H results from a combination of two processes: photocurrent enhancement due to excitations by the probe light from the valence band to the D+ states, and photocucurrent reduction due to excitations by the probe light from the D0 states to the conduction band. Using the DBCPM spectra, we measured the optical transition energy (0.77 eV) and the electron correlation energy (0.16 eV) for the filled D- defects.
U2 - 10.1016/0022-3093(93)90570-N
DO - 10.1016/0022-3093(93)90570-N
M3 - Article
AN - SCOPUS:0027907071
SN - 0022-3093
VL - 164-166
SP - 383
EP - 386
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - PART 1
ER -