Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP24)
DOI: https://doi.org/10.29363/nanoge.iperop.2024.007
Publication date: 18th October 2023
The use of molecular dopants is an intriguing strategy for achieving a high power conversion efficiency (PCE) in organic solar cells (OSCs). However, despite its promise, the number of molecular dopants that enhance the PCE of OPVs remains limited. In this study, we introduce two novel n-type dopants, Ethyl Viologen (EV) and Methyl Viologen (MV), into ternary PM6:BTP-eC9-PC71BM bulk heterojunction (BHJ) OPVs and compare their performance with other known n-type dopants. Our findings reveal that the addition of EV and MV results in remarkable enhancements in PCE, reaching maximum values of 19.03% and 18.61%, respectively, along with fill factor (FF) values of 80% and 79.2%, respectively. We demonstrate that EV and MV function as both n-type dopants and microstructure modifiers, inducing enhancements in the absorption coefficient, balancing the charge carrier mobility, increasing the carrier lifetime, and reducing charge carrier recombination. Our results suggest that low concentrations of EV and MV can enhance the performance of highly efficient organic solar cells to levels beyond those achievable by the pristine BHJ.
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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.
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.
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