Sunflower-Like SrCo_(2)S_(4)@f-MWCNTs Hybrid Wrapped by Engineering N-Reduced Graphene Oxide for High Performance Dye-Sensitized Solar Cells
作者机构:School of Physics and Materials ScienceAnhui UniversityHefei230601China Anhui Key Laboratory of Information Materials and DevicesHefei230601China Institute of Physical Science and Information TechnologyAnhui UniversityHefei230601China
出 版 物:《Journal of Renewable Materials》 (可再生材料杂志(英文))
年 卷 期:2020年第8卷第4期
页 面:431-446页
核心收录:
基 金:financially supported by National Natural Science Foundation of China(11674001) National Key R&D Program of China(2017YFA0403503) Open fund for Discipline Construction,Anhui Provincial Natural Science Foundation(1708085MA07,1708085QE116) Institute of Physical Science and Information Technology(S01003103,Anhui University) the Doctoral research start-up funds projects of Anhui University(J01003201) the Key Natural Science Research Program of Anhui Educational Committee(KJ2018ZD001)
主 题:Dye-sensitized solar cells sunflower-like multiwall carbon nanotubes SrCo_(2)S_(4) counter electrode
摘 要:A novel sunflower-like nanocomposite of SrCo_(2)S_(4)nanoflakes and functionalized multiwall carbon nanotubes(f-MWCNTs)entanglement enveloped in nitrogen-reduced graphene oxide(N-RGO)is prepared by a cheap *** unique entanglement structure of the material exhibits higher specific surface area,better electrical conductivity and other *** helps to reduce the transfer resistance in the photoelectric process of the battery and improve the electrochemical activity,thus increasing the photoelectric conversion efficiency of the *** new ternary cobalt-based sulfide material can replace platinum as the counter electrode(CE)material loaded on dye-sensitized solar cells(DSSCs).DSSCs with SrCo_(2)S_(4)@f-MWCNTs@N-RGO(SCS@f-M@N-R)as CE material show excellent photoelectric conversion efficiency(PCE,8.06%),even surpassing than that of Pt CE material(7.51%).The low cost,excellent electrocatalytic performance and simple preparation method of SCS@f-M@N-R nanomaterial provide feasibility for replacing platinum material as the CE material of DSSCs,which is of great significance and persuasion.