Perovskite solar cells: recent progress and strategies developed for minimizing interfacial recombination |
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| Authors: | Rengasamy DHANABAL Suhash Ranjan DEY |
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| Affiliation: | Combinatorial Materials Laboratory, Department of Materials Science and Metallurgical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy 502284, Telangana, India |
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| Abstract: | Organometallic perovskite is a new generation photovoltaic material with exemplary properties such as high absorption co-efficient, optimal bandgap, high defect tolerance factor and long carrier diffusion length. However, suitable electrodes and charge transport materials are required to fulfill photovoltaic processes where interfaces between hole transport material/perovskite and perovskite/electron transport material are affected by phenomena of charge carrier separation, transportation, collection by the interfaces and band alignment. Based on recent available literature and several strategies for minimizing the recombination of charge carriers at the interfaces, this review addresses the properties of hole transport materials, relevant working mechanisms, and the interface engineering of perovskite solar cell (PSC) device architecture, which also provides significant insights to design and development of PSC devices with high efficiency. |
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| Keywords: | light absorption p–i–n and n–i–p structure interface recombination build-in potential perovskite solar cell |
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