Efficient organic solar cells achieved at a low energy loss
Efficient organic solar cells achieved at a low energy loss作者机构:Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China School of Chemical SciencesUniversity of Chinese Academy of SciencesBeijing 100190China
出 版 物:《Science Bulletin》 (科学通报(英文版))
年 卷 期:2019年第64卷第16期
页 面:1144-1147页
核心收录:
学科分类:08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程(可授工学、理学学位)]
基 金:financially supported by the National Key R&D Program of China (2017YFA0204700) the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB12010200) the National Natural Science Foundation of China (21572234, 21661132006, 91833304, 21805289)
主 题:Efficient organic solar cells at a low energy loss Organic photovoltaics
摘 要:Organic photovoltaics(OPVs)have attracted much attention because of the advantages in low-cost and large-area fabrication and the great potentials in achieving flexible and semi-transparent devices(1)However,compared with inorganic and perovskite solar cells[2],OPVs show relatively low photoelectric conversion efficiencies,which is admittedly attributed to intrinsically low dielectric constants of organic materials[3]resulting in large energy losses(Eloss=EgqVoc,where Eg is the optical bandgap of the photoactive layer,Voc is the open-circuit voltage of photovoltaic devices and q is elementary charge).