High-performance and multifunctional organic photovoltaic devices

Organic photovoltaic devices(OPVs)are emerging as a promising renewable energy source for the future.Their unique advantages,such as semitransparency,light weight,superior flexibility,and low cost,enable a wide range of applications.However,compared to silicon-based photovoltaics,OPVs still face challenges for further improving their efficiency.Additionally,there is a need to explore their potential of multi-functionality for practical application in various scenarios.This review summarizes the recent achievements in optimizing device performance and enhancing power-conversion efficiency,particularly via tuning the intermolecular interaction to reduce the electron-vibration coupling and non-radiative charge recombination(denoted as the“dilution effect”).Moreover,the representative development of ultra-thin Ag transparent electrode-based OPVs with multi-functional capabilities(such as semitransparency,flexibility,stretchability,and better aesthetics)has also been covered.Therefore,this review aims to provide a broad landscape on the recent development of OPV and to unlock the full potential of OPVs.