Cutting etch organic solar cells utilize the bulk-heterojunction concept, shown in the graphic, of interpenetrating electron and hole conducting networks which enhances the exciton splitting process in the photosensitive layer. Generated charges are turned into current due to the built-in field given by the adjoining electrodes. Here, the influence of an altered doping level of the hole collecting electrode has been investigated.
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Frohne et al. (2002) studied this question.
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