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Comparison of the illuminated current density (main) and photocurrent density (inset) vs applied voltage characteristics of the organic bulk heterojunction photodiodes using AM1.5 direct solar simulator with intensity.
Comparison of the external quantum efficiency of the two devices as a function of the applied voltage. Inset: Linear dependence of the photocurrent at on the laser intensity. The slope gives the device responsivity ( for device 1 and for device 2).
Calculation of the optical field distribution (open circles) and time-averaged absorbed power (close circles) as a function of position in the two devices.
Comparison of the calculated exciton creation efficiency as a function of active layer thickness (dashed and solid lines) and the measured external quantum efficiency at bias (open and closed circles).
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