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For example, I have a PTB7:PCBM organic solar cell. I applied electric field in forward basis. Will it contribute to increase charge separation? Then, if I do in reverse basis, what will happen to the solar cell?

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    $\begingroup$ Would Electrical Engineering be a better home for this question? $\endgroup$ – Qmechanic Dec 25 '17 at 9:31
  • $\begingroup$ Organic solar cells are excitonic solar cells. The applied electric potential can therefore have strong effect on the first step of the entire photovoltaic functioning of the device. While in a bilayer exciton dissociate due to the donor acceptor character of the coupled materials, in a bulk heterojunction this driving force might be less effective, e.g. due to an overly homogeneous structure. Can you perform EQE meas? I HOPE to find the time for an answer. The info I request should help. $\endgroup$ – Alchimista Dec 25 '17 at 21:05
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The IV-curves will be similar to those of any pn-junction: enter image description here

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