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The electrical and photoelectrical properties of oxygen doped films of nickel phthalocyanine photovoltaic cells have been
studied using ohmic gold and blocking indium electrodes. DC conduction processes identified depend both on the
polarity and on the electric field strength. Under forward bias (gold electrode positive), conductivity is ascribed to
Schottky diode behaviour at lower fields and by space- charge-limited conductivity controlled by an exponential trap
distribution at higher fields. Under reverse bias, the conduction process is interpreted in terms of an electrode-limited to a
bulk limited transition. The photovoltaic parameters of the cells are evaluated from the current-voltage characteristics
under illumination. Space charge concentrations and barrier heights are estimated from the capacitance-voltage
measurements both in dark and under constant illumination. From the action spectra of the photocurrent it is concluded
that the carrier generation process is wavelength independent.
T. G. Abdel-Malik andAdly H. Elsayed
"Electrical and photoelectrical properties of nickel phthalocyanine photovoltaic cells", Proc. SPIE 6656, Organic Photovoltaics VIII, 66560H (17 October 2007); https://doi.org/10.1117/12.728752
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T. G. Abdel-Malik, Adly H. Elsayed, "Electrical and photoelectrical properties of nickel phthalocyanine photovoltaic cells," Proc. SPIE 6656, Organic Photovoltaics VIII, 66560H (17 October 2007); https://doi.org/10.1117/12.728752