Proceedings of International Conference on Perovskite and Organic Photovoltaics and Optoelectronics (IPEROP19)
Publication date: 23rd October 2018
Hybrid perovskite solar cells have attracted great attention due to high power conversion efficiency (PCE) over 20%. One of the remaining challenges is large scale fabrication of the device, which requires scalable coating methods using such as slot-dyes, coating blades, and ink-jets, alternative to spin-coating. Commonly used anti-solvent method is quite sensitive to the coating and drying conditions, thus we report here the preparation of the perovskite (precursor) inks and optimized the coating conditions.
Perovskite crystal of MAPbI3 was prepared from methylammonium iodide (MAI), lead iodide (PbI2) as a precipitate, and re-dissolved in solution as an ink by addition of methylamine (MA)/methanol vapor. Low boiling point solvents, such as acetonitrile1) and chloroform were selected. After deposition of perovskite ink on the substrate, the black perovskite layer was immediately appeared by removal of MA and solvents. Active layer thickness and the composition of perovskite layer was optimized by addition of methylammonium chloride to the perovskite ink, resulted in higher-quality perovskite layer formation, which was verified by the cross-sectional SEM-EDX analysis. The power conversion efficiency was ~16%.
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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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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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