Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV24)
Publication date: 6th February 2024
This paper presents a theoretical derivation of the multichannel recombination model for both doped and intrinsic active layers, taking into account the distribution of electrostatic potential. An investigation is conducted on the distinction between doped and intrinsic active layers in organic solar cells, as well as their effect on surface recombination loss. The modeling results showed that the intrinsic active layer of PM6:Y6 had lower surface recombination losses compared to the doped active layer at the start of the investigation. The second stage of the study is dedicated to examining the loss of non-geminate recombination using a proposed recombination model. To achieve this objective, the PTB7-Th donor polymer was mixed with several non-fullerene acceptors, such as COTIC-4F, O-IDTBR, and ITIC-4F. The comparative analysis demonstrated that the surface recombination loss in the intrinsic active layer is lower in all three examined active layers, in contrast to the doped active layer. The results demonstrated that the inherent active layer in organic solar cells (OSC) has exceptional performance in relation to the Voc parameter, mostly as a result of lower levels of surface recombination loss.
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International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
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