Proceedings of International Conference Asia-Pacific Hybrid and Organic Photovoltaics (AP-HOPV17)
Publication date: 7th November 2016
The perovskite solar cell (PSC) with a compact layer (CL) and a mesoporous scaffold is considered most promising in terms of efficiency, reproducibility and hysteresis control. Typically, CL and scaffold are made by two separated steps, which increases the complexity of the fabrication procedure. In this study, we developed a unique method to deposit a TiO2 CL and TiO2 scaffold on FTO glass for PSCs by applying a two-stepelectrodeposition in one single bath. The bottom-up growth characteristic of electrodeposition offers excellent controllability of the thickness and morphology of TiO2 films by simply altering the depositing profile. As a result, we found that a satisfactory TiO2 CL and scaffold can be obtained using a profile of -0.6V initially and -0.5V sequentially. From cyclic voltammetry, it was showed that depositing time at 250 seconds in -0.6V and then 120 seconds in -0.5V resulted in an optimal CL and scaffold in sequence. At present, the highest power conversion efficiency of PSC using this method achieved 14.6%.
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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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