Approaching 18%efficiency of ternary organic photovoltaics with wide bandgap polymer donor and well compatible Y6:Y6-1O as acceptor

查看全文 作　　者：Xiaoling [1]Ma;Anping [2]Zeng;Jinhua [1]Gao;Zhenghao [1]Hu;Chunyu [1]Xu;Jae Hoon [4]Son;Sang Young [4]Jeong;Caixia [1]Zhang;Mengyang [5]Li;Kai [1]Wang;He [2,3]Yan;Zaifei [5]Ma;Yongsheng [1]Wang;Han Young [4]Woo;Fujun [1]Zhang

机构地区：[1]Key Laboratory of Luminescence and Optical Information,Ministry of Education,Beijing Jiaotong University,Beijing 100044,China;[2]Department of Chemistry,The Hong Kong University of Science and Technology,Hong Kong,China;[3]Institute of Polymer Optoelectronic Materials and Devices,State Key Laboratory of Luminescent Materials and Devices,South China University of Technology,Guangzhou 510640,China;[4]Organic Optoelectronic Materials Laboratory,Department of Chemistry,College of Science,Korea University,Seoul 02841,South Korea;[5]Center for Advanced Low-Dimension Materials,State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,Shanghai 201620 China

出　　处：《National Science Review》索引2021年第8卷第8期,共10页

基　　金：supported by the National Key Research and Development Program of China(2019YFA0705900);the National Natural Science Foundation of China(61975006 and 61675017);the Postdoctoral Innovative Talent Support Program(BX20200042);the China Postdoctoral Science Foundation(2020M680327);the Beijing Natural Science Foundation(4192049);financial support from the National Research Foundation of Korea(2020M3H4A3081814 and 2019R1A6A1A11044070)。 摘　　要：A series of ternary organic photovoltaics(OPVs)are fabricated with one wide bandgap polymer D18-Cl as donor,and well compatible Y6 and Y6-1O as acceptor.The open-circuit-voltage(V_(OC))of ternary OPVs is monotonously increased along with the incorporation of Y6-1O,indicating that the alloy state should be formed between Y6 and Y6-1O due to their excellent compatibility.The energy loss can be minimized by incorporating Y6-1 O,leading to the V_(OC)improvement of ternary OPVs.By finely adjusting the Y6-1O content,a power conversion efficiency of 17.91%is achieved in the optimal ternary OPVs with 30 wt%Y6-1O in acceptors,resulting from synchronously improved short-circuit-current density(JSC)of 25.87 mA cm^(-2),fill factor(FF)of 76.92%and V_(OC)of 0.900 V in comparison with those of D18-Cl:Y6 binary OPVs.The JSC and FF improvement of ternary OPVs should be ascribed to comprehensively optimal photon harvesting,exciton dissociation and charge transport in ternary active layers.The more efficient charge separation and transport process in ternary active layers can be confirmed by the magnetophotocurrent and impedance spectroscopy experimental results,respectively.This work provides new insight into constructing highly efficient ternary OPVs with well compatible Y6 and its derivative as acceptor. 关键词：organic photovoltaics power conversion efficiency ternary strategy photon harvesting morphology regulation

相关文献

参考文献（50）
引证文献（3）
耦合文献（152）

参考文献(50)

引证文献(3)

耦合文献(152)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Approaching 18%efficiency of ternary organic photovoltaics with wide bandgap polymer donor and well compatible Y6:Y6-1O as acceptor

参考文献(50)

引证文献(3)

耦合文献(152)

用户提示