Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP27)
Publication date: 22nd October 2026
Perovskite solar cells (PSCs) have attracted widespread attention as promising next-generation photovoltaics due to their high power conversion efficiency and low-cost solution processability. Over the past decade, we have advanced both fundamental and applied research in this field from the perspective of materials chemistry, aiming to achieve high device performance together with commercial viability. In 2018, based on our academic achievements, we established the Kyoto University spin-off startup, EneCoat Technologies Co., Ltd., to accelerate the practical application of perovskite solar modules.
Our research strategy focuses on rational molecular design to control charge collection, surface passivation, and energy-level alignment at the device interfaces:
1) Novel Charge-Collecting Materials: We have designed and synthesized novel multipodal pi-conjugated materials, such as PATAT-based compounds, to optimize frontier orbital levels, molecular orientation, and charge transport properties.1-3) Furthermore, as new charge-collecting options, we have recently developed two-dimensionally extended sheet-type materials incorporating pi-conjugated systems linked via ene-thiol chemistry or boroxine cores.
2) Interfacial and Surface Modification: Based on a "dipole strategy," we have developed functional organic passivating materials that modify both the top and bottom surfaces of the perovskite layer, suppressing non-radiative recombination and dramatically improving carrier extraction.4-7)
These material innovations have enabled significant performance enhancements across single junction cells, large-area modules, and all-perovskite tandem architectures.8-12) In this presentation, I will report on our recent research progress, with a particular focus on novel two-dimensionally extended interfacial materials and their impact on device efficiency and stability. Additionally, I will briefly introduce our manufacturing efforts for perovskite solar cells at EneCoat Technologies, following the recent completion of our new headquarters and factory facility.
The author thank many collaborators and students, Dr. T. Nakamura, Dr. M. A. Truong, C.-Y. Chen, Dr. R. Murdey, Dr. S. Hu, Dr. Y. Kanemitsu, in Kyoto University, etc. This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) (JPNP25011), NEDO-GI (JPNP21016), JST–MIRAI (JPMJMI22E2), and JST PRESTO (JPMJPR25H6), International Collaborative Research Program of ICR (Kyoto University), ICR Grants for Promoting Integrated Research (Kyoto University), Grants for the Integrated Research Consortium on Chemical Sciences, Grant-in-Aid for Scientific Research (A) (JP24H00481, JP24H00446), and Grant-in-Aid for Scientific Research (B) (JP24K01571, JP24K01607).
nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.
Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.
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.
The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.