Abstract
In recent years,with the emergence of non-fullerene fused-ring acceptors,power conversion efficiencies(PCEs)of organic solar cells(OSCs)have exceeded 19%.However,compared to inorganic or perovskite photovoltaic cells,a higher voltage loss has become one of the key factors limiting further improvement in the PCEs of OSCs.The ternary/quaternary strategy has been identified as a feasible and effective way to obtain high-efficiency OSCs.In this review,a brief outline is given of the key roles that guest materials played in reducing voltage losses in solar cell devices and a brief look at the future material design and the design of ternary/quaternary systems.
基金项目
Department of Science and Technology of Inner Mongolia(2020GG0192)
内蒙古自治区自然科学基金(2022ZD04)
Inner Mongolia Normal University(112/1004031962)
Inner Mongolia Autonomous Region Postgraduate Research Innovation Fund(S20210274Z)