Proceedings of Asia-Pacific Conference on Perovskite, Organic Photovoltaics&Optoelectronics (IPEROP25)
Publication date: 17th October 2024
Lead halide perovskite materials have emerged as promising candidates for next-generation photovoltaics. However, despite their remarkable efficiency, long-term stability remains a major challenge for commercialization. This study investigates how precursor purity affects the device performance and stability of perovskite solar cells. Low-impurity precursors were synthesized using a crystal redissolution method, effectively reducing sodium and other impurities that contribute to material degradation.[1].[2],[3] TGA measurement demonstrated that low-impurity precursors exhibit enhanced thermal stability. Low-impurity precursors promoted the formation of large grains and minimized intermediate phases, leading to improved material quality. Electrical and optical characterizations revealed that lower impurity levels reduced current-voltage hysteresis and non-radiative recombination, thereby enhancing charge transport properties. Devices fabricated with low-impurity precursors achieved a power conversion efficiency of 20.15%. Long-term stability tests under ambient conditions showed that low-impurity devices maintained 96.7% of their initial efficiency after two months, while higher-impurity devices experienced significant degradation. Our experiments contribute to a broader understanding of the impurity effect in perovskite materials and pave the way for more stable and efficient perovskite-based devices.
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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.
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
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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