The Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP23) took place in Kobe, Japan from the 23rd to the 24th of January 2023.
Solar energy conversion by low-cost and efficient photovoltaic devices is steadily increasing its contribution in the global demand renewable energy. Hybrid and organic solar cells are highly promising power sources due to their significant progress in efficiency and technology. The main topics of this conference were related to material preparation, modelling and fabrication of hybrid and organic photovoltaic cells, including dye-sensitized solar cells, organic thin film solar cells, quantum dot solar cells, and solar cells. Building upon success of the previous conference in Japan, this Conference provided an excellent opportunity for scientists and engineers worldwide to exchange information and discussions on the latest developments.
Nam-Gyu Park is professor and SKKU-Fellow at School of Chemical Engineering and adjunct professor at Department of Energy Science, Sungkyunkwan University. He got Ph.D. in Inorganic Solid State Chemistry from Seoul National University in 1995. He worked at ICMCB-CNRS, France, from 1996 to 1997 and at National Renewable Energy Laboratory, USA, from 1997 to 1999 as postdoctoral researchers. He worked as Director of Solar Cell Research Center at Korea Institute of Science and Technology from 2005 to 2009 and as a principal scientist at Electronics and Telecommunications Research Institute from 2000 to 2005 before joining Sungkyunkwan University in 2009. He has been doing researches on high efficiency mesoscopic solar cells including perovskite solar cell and dye-sensitized solar cell since 1997. He is pioneer in solid state perovskite solar cell, which was first developed in 2012. He received awards, including Scientist Award of the Month (MEST, Korea), KyungHyang Electricity and Energy Award (KEPCO, Korea), KIST Award of the Year (KIST, Korea) and Dupont Science and Technology Award (Dupont Korea), SKKU fellowship, and MRS Outstanding Research Award (MRS, Boston) and WCPEC Paper Award (Kyoto, Japan). He published over 230 scientific papers, including Science, Nature Materials, Nature Nanotechnology, Nature Energy and Nature Communications, 80 patent applications and 8 book chapters. He received H-index of 67 as of May, 2017.
Henry Snaith undertook his PhD at the University of Cambridge, working on organic photovoltaics, then spent two years at the EPFL as a post-doc working on dye-sensitized solar cells. Since 2007 he has held a professorship at the University of Oxford Clarendon Laboratory where his group researches organic, hybrid and perovskite optoelectronic devices. Professor Snaith was elected as a Fellow of the Royal Society in 2015, he is a 2017 Clarivate Citation Laureate, and among his awards are the 2017 Royal Society James Joule Medal and Prize. In 2010 he founded Oxford Photovoltaics Ltd. which is commercializing the perovskite solar technology transferred from his laboratory.
Dr. Eric Wei-Guang Diau has received his Ph.D. in Chemistry from National Tsing Hua University, Taiwan, in 1991, and has been a faculty member in the Department of Applied Chemistry, National Chiao Tung University since 2001. He is interested in the understanding of interfacial electron transfer, light capture energy transfer and light energy conversion kinetic systems. His current research focuses on the development of novel functional materials for photovoltaic and photocatalytic applications such as perovskite solar cells and CO2 reduction.
Francisco Fabregat Santiago (B.Sc. in Physics at Universitat de Valencia and University of Leeds in 1995 , Ph.D. from Universitat Jaume I in 2001) joined Universitat Jaume I in 1998 where he is currently full Professor at Physics Department and active member Institute of Advanced Materials (INAM). Among others he made several research stays at Uppsala University, Imperial College, École Polytechnique Fédérale de Lausanne. He authored more than 100 peer reviewed papers and 5 book chapters, that accumulate more than 11000 cites with an h-index of 54. Prof. Fabregat-Santiago is an expert in electro-optical characterization of devices and particularly known by his works in the use of the impedance spectroscopy to model, analyze and interpret the electrical characteristics (charge accumulation, transfer reactions and transport) of films and devices including ZnO and TiO2 nanostructured films (nanocolloids, nanorods and nanotubes), dye sensitized solar cells, perovskite solar cells, electrochromic materials and liquid and solid state hole conductors. His current interests are focused in the in the analysis of the fundamental properties of nano and bio materials for their application in solar cells, water decontamination, bio-energy, sensors and in the (photo)electrochemical production of added value chemicals.
Prof. Marina Freitag is a Professor of Energy and a Royal Society University Research Fellow at Newcastle University. She is developing new light-driven technologies that incorporate coordination polymers to solve the most important challenges in the research area, including issues of sustainability, stability and performance of hybrid PV. The development of such highly innovative concepts has given Marina international recognition, including recipient of the prestigious 2022 Royal Society of Chemistry Harrison-Meldola Memorial Prize 2022.
Her research into hybrid molecular devices, began during her doctoral studies (2007-2011, Rutgers University, NJ, USA) where she was awarded an Electrochemical Society Travel Award and Dean Dissertation Fellowship 2011. Dr Freitag moved to Uppsala University (2013-2015) for a postdoctoral research position, which focused on the implementation of alternative redox mediators, leading to a breakthrough today known as “zombie solar cells”. Dr Freitag was invited to further develop this work at École Polytechnique Fédérale de Lausanne (EPFL) with Prof. Anders Hagfeldt ( 2015-2016). From 2016-2020 she was appointed as Assistant Professor at Uppsala University, Sweden, where she received the Göran Gustaffsson Young Researcher Award 2019.
Liyuan HanThe author was graduated from Osaka University in 1978 and received Ph.D from Osaka University in 1983. He joined R&D Center in Toshiba from 1978 to 2000, during which the author was engaged in development of ULSI lithography, solar cells direct methanol fuel cells, and polysilane. He joined polysilane research in Robert West group of Wisconsin University (US) from 1988 to 1990. He was a professor of Kyushu Institute of Technology (National Institute) since 2001. From 2019, the author is a professor in The University of Electro-Communications in Japan. His research interest is printable solar cells.
Professor Anita Ho-Baillie is the John Hooke Chair of Nanoscience at the University of Sydney, an Australian Research Council Future Fellow and an Adjunct Professor at University of New South Wales (UNSW). Her research interest is to engineer materials and devices at nanoscale for integrating solar cells onto all kinds of surfaces generating clean energy. She is a highly cited researcher since 2019. In 2021, she was an Australian Museum Eureka Prize Finalist and was named the Top Australian Sustainable-Energy Researcher by The Australian Newspaper Annual-Research-Magazine. She won the Royal Society of NSW Warren Prize in 2022 for her pioneering work in the development of next generation solar cells. She has been a finalist for the Australian Space Awards for various categories in 2023 and 2024. In 2024, she is the recipient of the Australian Academy of Science Nancy Millis Medal. She is a Fellow of the Australian Institute of Physics, the Royal Society of New South Wales and the Royal Society of Chemistry.
Maksym Kovalenko has been a tenure-track Assistant Professor of Inorganic Chemistry at ETH Zurich since July 2011 and Associate professor from January 2017. His group is also partially hosted by EMPA (Swiss Federal Laboratories for Materials Science and Technology) to support his highly interdisciplinary research program. He completed graduate studies at Johannes Kepler University Linz (Austria, 2004-2007, with Prof. Wolfgang Heiss), followed by postdoctoral training at the University of Chicago (USA, 2008-2011, with Prof. Dmitri Talapin). His present scientific focus is on the development of new synthesis methods for inorganic nanomaterials, their surface chemistry engineering, and assembly into macroscopically large solids. His ultimate, practical goal is to provide novel inorganic materials for optoelectronics, rechargeable Li-ion batteries, post-Li-battery materials, and catalysis. He is the recipient of an ERC Consolidator Grant 2018, ERC Starting Grant 2012, Ruzicka Preis 2013 and Werner Prize 2016. He is also a Highly Cited Researcher 2018 (by Clarivate Analytics).
Subodh Mhaisalkar is the Tan Chin Tuan Centennial Professor in the School of Materials Science & Engineering at the Nanyang Technological University (NTU), Singapore. Subodh is also the Executive Director of the Energy Research Institute @ NTU (ERI@N), a pan-University multidisciplinary research institute for innovative energy solutions. Prior to joining NTU in 2001, Subodh has over 10 years of research and engineering experience in the microelectronics industry and his areas of expertise and research interests includes semiconductor technology, perovskite solar cells, printed electronics, and energy storage. Subodh received his Bachelors’ degree from IIT-Bombay and his MS/Ph.D. degrees from The Ohio State University.
Tsutomu (Tom) Miyasaka received his Doctor of Engineering from The University of Tokyo in 1981. He joined Fuji Photo Film, Co., conducting R&Ds on high sensitivity photographic materials, lithium-ion secondary batteries, and design of an artificial photoreceptor, all of which relate to electrochemistry and photochemistry. In 2001, he moved to Toin University of Yokohama (TUY), Japan, as professor in Graduate School of Engineering to continue photoelectrochemistry. In 2006 to 2009 he was the dean of the Graduate School. In 2004 he has established a TUY-based company, Peccell Technologies, serving as CEO. In 2005 to 2010 he served as a guest professor at The University of Tokyo.
His research has been focused to light to electric energy conversion involving photochemical processes by enhancing rectified charge transfer at photo-functional interfaces of semiconductor electrodes. He has contributed to the design of low-temperature solution-printing process for fabrication of dye-sensitized solar cells and solid-state hybrid photovoltaic (PV) cells. Since the discovery of the organic inorganic hybrid perovskite as PV material in 2006 and fabrication of high efficiency PV device in 2012, his research has moved to R&Ds of the lead halide perovskite PV device. He has promoted the research field of perovskite photovoltaics by organizing international conferences and by publishing many papers on enhancement of PV efficiency and durability, overall citation number of which is reaching more than 5,000 times. In 2009 he was awarded a Ministry of Science & Education prize on his achievements of green sustainable solar cell technology. In 2017 he received Chemical Society of Japan (CSJ) Award. He is presently directing national research projects funded by Japan Science and Technology Agency (JST) and Japan Aerospace Exploration Agency (JAXA).
Thuc-Quyen Nguyen is a professor in the Center for Polymers and Organic Solids and the Chemistry & Biochemistry Department at University of California, Santa Barbara (UCSB). She received her Ph.D. degree in physical chemistry from the University of California, Los Angeles, in 2001 under the supervision of Professor Benjamin Schwartz. Her thesis focused on photophysics of conducting polymers. She was a research associate in the Department of Chemistry and the Nanocenter at Columbia University working with Professors Louis Brus and Colin Nuckolls on molecular self-assembly, nanoscale characterization and molecular electronics. She also spent time at IBM Research Center at T. J. Watson (Yorktown Heights, NY) working with Richard Martel and Phaedon Avouris. Her current research interests are structure-function-property relationships in organic semiconductors, sustainable semiconductors, doping in organic semiconductors, interfaces in optoelectronic devices, bioelectronics, and device physics of OPVs, photodetectors, and electrochemical transistors. Recognition for her research includes 2005 Office of Naval Research Young Investigator Award, 2006 NSF CAREER Award, 2007 Harold Plous Award, 2008 Camille Dreyfus Teacher Scholar Award, the 2009 Alfred Sloan Research Fellows, 2010 National Science Foundation American Competitiveness and Innovation Fellows, 2015 Alexander von Humboldt Senior Research Award, 2016 Fellow of the Royal Society of Chemistry, 2015-2019 World’s Most InfluentialScientific Minds; Top 1% Highly Cited Researchers in Materials Science by Thomson Reuters and Clarivate Analytics, 2019 Fellow of the American Association for the Advancement of Science (AAAS), 2023 Wilhelm Exner Medal from Austria, 2023 Fellow of the US National Academy of Inventors, 2023 de Gennes Prize in Materials Chemistry from the Royal Society of Chemistry, 2023 Elected Member of the US National Academy of Engineering, 2024 Fellow of the European Academy of Sciences, and 2025 ACS Henry H. Storch Award in Energy Chemistry.
Takumi YamadaDr. Takeru Bessho is a Project Lecture at the Research Center for Advanced Science and Technology (RCAST) at the University of Tokyo, Japan, who was granted Doctor of Engineering in 2009 from the Shibaura Institute of Technology as developments of optoelectronic device properties with organic-inorganic hybrid materials. His affiliations were SONY Corporation as a Researcher at
Advanced Materials Laboratories from 2011 to 2015, and École polytechnique fédérale de Lausanne as a Research Associate at laboratory of Prof. Michael Grätzel from 2009 to 2011. His main interest is on device engineering with organic-inorganic materials and its improvement of energy conversion efficiency as solar cells.
Lara Perrin is Associate Professor at University Savoie Mont Blanc (France) since 2006, in the GUIDE team (Genesis, Usage of Durable Interfaces for Energy) of the LEPMI laboratory (Laboratory of Electrochemistry and Physical chemistry of Materials and Interfaces). This team is part of the National Institute of Solar Energy and is located at Le Bourget du Lac. She is a specialist in the chemistry of materials with specific properties, and her work combines chemistry, physical chemistry and physics. Her current research activities are mainly focused on materials for energy (third generation solar cells: organic and perovskite, electric cables, fuel cells ...). Her work focuses on both the Genesis and the Sustainability of these different systems.
Akinori Saeki received BS and MS degrees in nuclear engineering from Osaka University in 1999 and 2001, respectively. He received Dr of engineering in applied chemistry from Osaka University in 2007. He had been an assistant professor at The Institute of Scientific and Industrial Research (ISIR), Osaka University in 2003-2009, an assistant professor (tenure-track) in 2010-2014, and an associate professor in 2014-2019 at the Graduate School of Engineering, Osaka University. He had joined in JST-PRESTO research programs of "Photoenergy conversion systems and materials for the next generation solar cells" in 2009-2013 and "Materials Informatics" in 2015-2019. He is currently a professor at Graduate School of Engineering, Osaka University (2019-present). His research interest is in nanometer-scale dynamics of chemical intermediates in condensed matters such as organic semiconductors, organic liquids, and organic-inorganic hybrid materials.
Prof. Qing Shen received her Bachelor’s degree in physics from Nanjing University of China in 1987 and earned her Ph.D. degree from the University of Tokyo in 1995. In 1996, she joined the University of Electro-Communications, Japan and became a full professor in 2016. In 1997, she got the Young Scientist Award of the Japan Society of Applied Physics. In 2003, she got the Best Paper Award of the Japan Society of Thermophysical Properties and the Young Scientist Award of the Symposium on Ultrasonic Electronics of Japan. In 2014, she got the Excellent Women Scientist Award of the Japan Society of Applied Physics. She has published nearly 140 peer-reviewed journal papers and book chapters. Her current research interests focus on solution processed nano-materials and nanostructures, semiconductor quantum dot solar cells and perovskite solar cells, and especially the photoexcited carrier dynamics (hot carrier cooling, multiple exciton generation, charge transfer at the interface) in perovskite solar cells, quantum dot and dye sensitized solar cells, organic-inorganic hybrid solar cells.
The conference took place at the Kobe Convention Center.
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Seigo Ito received his Ph.D. from the University of Tokyo (Japan), with a thesis that was the first to discuss Graetzel-type dye-sensitized solar cells in Japan. He worked in the Laboratory of Professor Shozo Yanagida (Osaka University, Japan) for two years, and in the Laboratory of Professor Michael Graetzel, at the Swiss federal Institute of Technology (EPFL) in Lausanne as a postdoctoral scientist for over three years, where his efforts focused on the progress of high-efficiency dye-sensitized solar cells. He is currently professor at University of Hyogo, making new printable cost-effective solar cells.
Maria Antonietta Loi studied physics at the University of Cagliari in Italy where she received the PhD in 2001. In the same year she joined the Linz Institute for Organic Solar cells, of the University of Linz, Austria as a post doctoral fellow. Later she worked as researcher at the Institute for Nanostructured Materials of the Italian National Research Council in Bologna Italy. In 2006 she became assistant professor and Rosalind Franklin Fellow at the Zernike Institute for Advanced Materials of the University of Groningen, The Netherlands. She is now full professor in the same institution and chair of the Photophysics and OptoElectronics group. She has published more than 130 peer review articles in photophysics and optoelectronics of nanomaterials. In 2012 she has received an ERC starting grant.
Hideo Ohkita is a Professor in the Department of Polymer Chemistry at Kyoto University. He obtained a Doctoral degree in 1997 at Kyoto University. He became an Assistant Professor in 1997, was promoted to Associate Professor in 2006, and to Professor of Department of Polymer Chemistry at Kyoto University in 2016. He concurrently worked as an academic visitor with Professor Durrant at Imperial College London from 2005 to 2006, and as a researcher in the Precursory Research for Embryonic Science and Technology (PRESTO) program “Photoenergy Conversion Systems and Materials for the Next Generation Solar Cells”, Japan Science and Technology Agency (JST), from 2009 to 2015. His research interests include studying photophysics and photochemistry in polymer systems. His current research focuses on spectroscopic approach to polymer solar cells.
Atsushi Wakamiya received his Ph.D. degree from Kyoto University in 2003. He began his academic carreer at Nagoya University as an assistant professor in 2003. In 2010, he moved to Kyoto University as an associate professor and was promoted to full professor in 2018. He received several awards: The Chemical Society of Japan Award for Creative Work (2020), Commendation for Science and Technology by MEXT Japan: Award for Science and Technology Research Category (2022), etc. He is a project leader of the Green Innovation Program (NEDO) and JST-Mirai Program. He is a co-founder and a director (as Chief Scientific Officer, CSO) of “EneCoat Technologies, Co. Ltd.”, a startup company for perovskite solar modules. His research interests include physical organic chemistry, elemental chemistry and materials chemistry.