Proceedings of International Conference Asia-Pacific Hybrid and Organic Photovoltaics 2018 (AP-HOPV18)
Publication date: 27th October 2017
Recently, copper complex redox couple has been reported to have many advantages such as low cost, wide accessible and fast electron self-exchange. Moreover, the most promising property for the copper complex redox couple is the minor voltage loss on dye regeneration, leading to considerably higher open circuit voltage (VOC) than conventional iodide/tri-iodide redox couple under one sun, AM1.5 test condition. However, its bulky structure leads to slow diffusion and thus limits its performance. One of the strategies to amend the mass transport problem of copper complex redox couple is to use thin TiO2 film, but this arrangement also leads to insufficient light-harvesting. Herein, we fabricated a dye-sensitized solar cell (DSC) by using a high absorption coefficient anthracene-based sensitizer, TY6, to integrate with copper complex redox couple. By optimizing the thickness of TiO2 films, the DSC with JSC of 8.80 mAcm-2, VOC of 1.08 V, FF of 0.69, corresponding a power conversion efficiency (PCE) of 6.64% has been achieved. Meanwhile, The photovoltaic performance of this TY6-sensitized, copper mediated solar cell under dim light condition is also measured. It turns out the VOC can maintain >0.8 V and PCE is over 17% under 300 lux, T5 fluorescent light irradiation, showing a great potential of practical usage in indoor environment.
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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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