Proceedings of 6th International Conference on Hybrid and Organic Photovoltaics (HOPV14)
Publication date: 1st March 2014
Organometallic halide perovskite have recently emerged as a new class of excellent light absorbers with carrier-transport function that have demonstrated exceptional progress in solar cells performance. These compounds exhibit very high efficiency using simple planar configurations. We report on the stabilization of a iodide/chloride mixed-halide (CH3NH3PbI3-xClx) perovskite sensitized solid-state solar cells using spiro-OMeTAD as hole transport materials. Our samples of a solution processed planar thin-film architecture (FTO/compact TiO2/perovskite/HTM/Au) achieved a remarkable photovoltaic performance with excellent stability on time. Interestingly, even when the sample are stored in the air at the room temperature without encapsulation,a long-term stability for over 600 h was observed for the cell with high power conversion efficiency of 12.5 % under standard illumination conditions (100 mW/cm2, AM 1.5G). In order to accomplish high reproducibility and improvement of the short-term performances of the devices we optimized the several issues (such as temperature, pressure, nature of the compact layer, and additives).
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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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