摘要
The power conversion efficiency(PCE)for donor-accepto bulk-heterojunction organic solar cells(OSCs)has reached~20%[1-3],approaching that for inorganic solar cells,due to the development of key photoactive materials[4-14].The short-circuit current density(Jsc)and the fill factor(FF)fo state-of-the-art OSCs are already close to the thermodynam ic upper limit predicted by Shockley-Queisser theory[15],but the open-circuit voltage(Voc)is low,limiting the overall per formance of OSCs.
基金
the Fundamental Research Funds for the Central Universities(2232022A13)
the National Natural Science Foundation of China(51973031,51933001)
the National Natural Science Foundation of China(21961160720)
the Natural Science Foundation of Shanghai(22ZR1401900)
the open research fund of Songshan Lake Materials Laboratory(2021SLABFK02)。
