Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP24)
Publication date: 18th October 2023
Perovskite solar cells are attracting attention as next-generation solar cells due to their ease of fabrication through solution coating and their high photoelectric conversion efficiency of around 26%.
However, reproducibility of the I-V curve is not high because the electrical characteristics of perovskite solar cells change with the history of factors such as light exposure, temperature, and voltage1). Metastable solar cells like perovskite solar cells face challenges in evaluation according to the IEC 60904-1 standards, the standard for assessing solar cells, and there is no established evaluation method based on international standards.
At our research institute, the first international round-robin test was conducted from 2021 to 2023, and the deviation in Pmax (maximum power output) among various research institutes ranged from -1.3% to 7.5%. It was found that the cause of this deviation was the degradation of sample cells and differences in dark storage time, including transportation time. The second international round-robin test, conducted in a hub-and-spoke manner, minimized sample degradation. Additionally, the stability of perovskite solar cells (PSC) due to light exposure was confirmed through measurements conducted over several days.
The participating institutions in the second international round-robin test were AIST (Japan), JET (Japan), CSIRO (Australia), Fraunhofer ISE (Germany), JRC (EU), NREL(USA) and KISTEC (Japan). The values of Pmax calculated by each institute showed remarkably consistent results.
Acknowledgment : Entrusted by METI, Japan
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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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