TY - JOUR
T1 - Electric-field dependent redox electron transfer in an organic solid
T2 - Study of carrier photogeneration efficiency
AU - Umeda, Minoru
AU - Nishizawa, Matsuhiko
AU - Itoh, Takashi
AU - Selman, J. Robert
AU - Uchida, Isamu
PY - 2000/8/18
Y1 - 2000/8/18
N2 - We have investigated the electric field dependence of the carrier photogeneration efficiency in an organic photoconductor with high sensitivity. The rate-determining step to generate photocarriers was considered to be the electron transfer between the neighboring two-redox molecules, which is influenced by the electric field. The overall carrier photogeneration efficiency was expressed by employing the electron-transfer velocity at the rate-determining step as a function of electric-field-dependent activation energy. This model successfully fits the experimental results for an organic photoconductor over a wide range of field strengths.
AB - We have investigated the electric field dependence of the carrier photogeneration efficiency in an organic photoconductor with high sensitivity. The rate-determining step to generate photocarriers was considered to be the electron transfer between the neighboring two-redox molecules, which is influenced by the electric field. The overall carrier photogeneration efficiency was expressed by employing the electron-transfer velocity at the rate-determining step as a function of electric-field-dependent activation energy. This model successfully fits the experimental results for an organic photoconductor over a wide range of field strengths.
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U2 - 10.1016/S0009-2614(00)00766-1
DO - 10.1016/S0009-2614(00)00766-1
M3 - Article
AN - SCOPUS:0005589889
SN - 0009-2614
VL - 326
SP - 219
EP - 224
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 3-4
ER -