Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV16)
Publication date: 28th March 2016
Different benchmark polymer based organic photovoltaic (OPV) systems, namely P3HT, PCDTBT, and PTB7, are tested as donor materials in blend with fullerene derivatives for comparison under artificial indoor lighting condition. We found that PCDTBT devices outperform the others generating 13.9 µW/cm2 at 300 lux, which corresponds to 16.6 % power conversion efficiency. To date, it is the highest record for polymer based OPV cells under low light level condition. This high power output density is comparable to other inorganic PV technologies such as silicon and gallium arsenide suggesting that OPV could be a promising candidate for indoor applications. Also, surprisingly, PTB7, the highest performing system under one sun, is not the highest performing systems under low light level. To explain the difference of their performance between under one sun and under low light, several device properties were studied. Based on these findings, we can conclude some criteria of selecting OPV systems for low light applications. A large OPV module, 14 cm by 14 cm with 100 cm2 active area, is demonstrated and tested for real applications using PCDTBT as the active material.
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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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