Charge transport and recombination in wide-bandgap Y6 derivatives-based organic solar cells
Yuliar Firdaus, Thomas D. Anthopoulos, et al
2022 Adv. Nat. Sci: Nanosci. Nanotechnol. 13 025001
The power conversion efficiency of nonfullerene-based organic solar cells (OSCs) has recently exceeded 18%, thanks to the constant effort to identify the key properties governing the OSCs performance and development of better photovoltaic materials.
With its superior properties, low-bandgap Y6 and its derivatives have emerged as one of the most popular nonfullerene acceptors (NFAs) for OSCs. In this work, the researchers compare two wide-bandgap Y6 derivatives with different end-groups, and their distinct device performance is correlated with their charge transport and recombination properties.
Light-intensity dependence measurements (J-V, TPV, CE, TPC) were performed with Paios.