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.
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.