City University of Hong Kong
Angus Hin-Lap Yip joined the Department of Materials Science and Engineering (MSE) and the School of Energy and Environment (SEE) at the City University of Hong Kong as Professor in 2021. He has also been the associate director of the Hong Kong Institute for Clean Energy (HKICE) since 2022. He was also elected as a member of the Hong Kong Young Academy of Sciences. From 2013-2020, he was a Professor at the State Key Laboratory of Luminescent Materials and Devices (SKLLMD) at the South China University of Technology (SCUT). He got his BSc (2001) and MPhil (2003) degrees in Materials Science from the Chinese University of Hong Kong (CUHK) and completed his PhD degree in MSE in 2008 at the University of Washington (UW), Seattle. His research combines materials, interface, and device engineering to improve polymer and perovskite solar cells and other optoelectronic devices. He has published more than 270 scientific papers with citations over 35000 and an H-index of 99. He was also honoured as ESI “Highly Cited Researcher” in Materials Science 9 times from 2014-2022.
Owing to the advancement in new material design over the past few years, the power conversion efficiencies (PCE) of organic photovoltaics (OPV) have reached over 19% for single-junction and over 20% for multi-junction devices. In this talk, I will first reveal the structure-property relationships of the state-of-the-art OPVs based on new-generation acceptor materials, showing that the special molecular packing of the acceptor is the key reason for its exceptional photovoltaic property. Second, I will highlight our work on using optical management as a powerful means to enhance OPVs' performance by maximizing the devices' light-harvesting properties. I will discuss how to apply high throughput optical model to rapidly screen more than 10 million device structures to identify the very best device design not only for extremely high-performance semitransparent OPVs, but also for organic/organic and perovskite/organic tandem solar cells.
City University of Hong Kong