Removal of residual compositions by powder engineering for high efficiency formamidinium-based perovskite solar cells with operation lifetime over 2000 h
Graphical Abstract
Formamidinium-based perovskite solar cells with a high efficiency over 23% and 2000-h T80 lifetime were fabricated using pre-synthesized crystalline perovskite powders via powder engineering.
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Dr. Guoqing Tong received his Ph. D. degree from the School of Electronic Engineering, Nanjing University, China, in 2017. Now he is a postdoctoral fellow in Prof. Yabing Qi’s Unit at Okinawa Institute of Science and Technology Graduate University (OIST). His research interests mainly focus on surface science of perovskite materials and the application of perovskites in solar cells/modules and photodetectors.
Dr. Dae-Yong Son is currently a staff researcher in Samsung Advanced Institution of Technology at Suwon in Korea. He received his B.S. in Chemistry from Korea University in 2011 and Ph.D. in Science from Sungkyunkwan University in 2018. Dae-Yong was a post-doctoral fellow at Okinawa Institution of Science and Technology from 2019 to 2020. Dr. Son’s research focus is on hybrid perovskite in photovoltaics and optoelectronics.
Dr. Luis K. Ono is a Staff Scientist in Prof. Yabing Qi's research unit (Energy Materials and Surface Sciences Unit) at Okinawa Institute of Science and Technology Graduate University, Japan. He obtained his B.Sc. in Physics/Microelectronics in 2000 from the University of São Paulo, Brazil. Later, he joined the Department of Nuclear Engineering in Kyoto University, Japan, and the University of Central Florida, USA, where he obtained his M.Sc. in 2003 and Ph.D. in 2009, respectively. His current research focuses on the fundamental understanding and surface science aspects of perovskite solar cells.
Dr. Hyung-Been Kang is a Research Support Specialist in Engineering Section at Okinawa Institute of Science and Technology Graduate University, Japan. He received his Ph.D. degree in chemistry from The University of Auckland, New Zealand. His formal research area is an investigation of structural and magnetic properties from novel transition metal oxide system through diffraction beamline techniques.
Prof. Sisi He is an Associate Professor in Harbin Institute of Technology (Shenzhen) in China. She received her B.E. (2011), M.S. (2014) and Ph.D. (2017) from Northeastern University, Tianjin University and Fudan University, respectively. She conducted her postdoctoral research on perovskite solar cells in Prof. Yabing Qi’s research unit (Energy Materials and Surface Sciences Unit) at Okinawa Institute of Science and Technology Graduate University, Japan and wearable electronics in McMaster University, Canada during 2018–2021. Her current interests focus on flexible devices including sensor/energy storage and conversion platform.
Prof. Longbin Qiu is an Assistant Professor in Southern University of Science and Technology in China. He received his B.E. (2011) and Ph.D. (2016) from Sun Yat-sen University and Fudan University, respectively. He conducted his postdoctoral research in Prof. Yabing Qi’s research unit (Energy Materials and Surface Sciences Unit) at Okinawa Institute of Science and Technology Graduate University in Japan during 2016–2020. His current interests focus on the scalable and stable perovskite solar modules, and flexible and wearable electronics.
Dr. Hui Zhang completed a PhD. in Materials Science at Peking University in 2019. Currently she is a postdoctoral scholar at Okinawa Institute Science and Technology Graduate University (OIST), Japan, where her research is focused on developing high-energy-density storage devices.
Dr. Yuqiang Liu is a postdoctoral scholar in Energy Materials and Surface Sciences Unit at Okinawa Institute of Science and Technology Graduate University in Japan. He obtained his Ph.D. from Institute of Functional Nano & Soft Materials, Soochow University, China. His current research focuses on recombination mechanism and surface science of perovskite light-emitting diodes.
Dr. Jeremy Hieulle is postdoctoral researcher at CIC nanoGUNE in Spain, where he is part of a European project SPRING (spin research in graphene). Prior to this position, he worked as a postdoctoral researcher at the Okinawa institute of science and technology (OIST) in Japan, as well as at the Catalan institute of nanoscience and nanotechnology (ICN2) in Barcelona. He received B.S., M.Phil. at the University of Strasbourg, and then obtained a Ph.D. from the Ecole Polytechnique of Paris. His research interests include on-surface synthesis, nanomagnetism, scanning probe, and perovskite solar cells.
Prof. Yabing Qi is Professor and Unit Director of Energy Materials and Surface Sciences Unit at Okinawa Institute of Science and Technology Graduate University in Japan, and a Fellow of the Royal Society of Chemistry. Prior to his current appointment, Prof. Qi was a postdoctoral fellow at Princeton University. He received his B.S., M.Phil., and Ph.D. from Nanjing University, Hong Kong University of Science and Technology, and UC Berkeley, respectively. His research interests include surface / interface sciences, physical chemistry, perovskite solar cells, lithium ion batteries, organic electronics, energy materials and devices (https://groups.oist.jp/emssu).