Electrospun and hydrothermal techniques to synthesize the carbon-coated nickel sulfide microspheres/carbon nanofibers nanocomposite for high performance liquid-state solar cells
To achieve optimal electrochemical performance, a highly efficient and stable noble-metal-free catalyst which consists of carbon-coated nickel sulfide microspheres (Ni3S4@C) and carbon nanofibers (CNFs) are synthesized through the electrospinning and hydrothermal method. The optimized sample provides a large amount of active sites that benefit electron transfer which is further applied as a counter electrode (CE) in dye-sensitized solar cells (DSSCs). A series of electrochemical measurements reveal that the resultant Ni3S4@C/CNFs show higher catalytic activity toward the reduction of I-3(-) to I- in comparison to the benchmark Pt, Ni3S4@C, pure Ni3S4 and CNFs. As a result, the DSSC device assembled with Ni3S4@C/CNFs-based CE affords a decent power conversion efficiency (PCE) of 8.29%, which surpasses the corresponding values of the device using the commercial Pt (7.35%), Ni3S4@C(6.81%), pure Ni3S4(6.51%) and CNFs (6.11%) CE under identical conditions. This work unfolds a new strategy for developing low-cost and effective CE materials in DSSCs.
基金：
National Natural Science Foundation of China (NSFC) [51772073, 21672051, 21201053, 51607054, 51762013]; Hebei province Outstanding Youth Fund [A2017201082, A2018201019]; Outstanding Youth Fund of Hebei University [2015JQ02]; Second Batch of Young Talent of Hebei Province [70280016160250, 70280011808]; Open Foundation of Key Laboratory of Advanced Materials of Tropical Island Resources (Hainan University), Ministry of Education China [AM2017-29]; State Key Laboratory of Fine Chemicals [KF1703]; Guangzhou Science and Technology Program [201707010243]
第一作者机构：[1]Hebei Univ, Coll Phys Sci & Technol, Hebei Key Lab Opt Elect Informat & Mat, Baoding 071002, Peoples R China[2]Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China
通讯作者：
推荐引用方式(GB/T 7714)：
Li Ling,Zhang Xue,Fu Lishan,et al.Electrospun and hydrothermal techniques to synthesize the carbon-coated nickel sulfide microspheres/carbon nanofibers nanocomposite for high performance liquid-state solar cells[J].COMPOSITES PART B-ENGINEERING.2019,173:doi:10.1016/j.compositesb.2019.107026.
APA：
Li, Ling,Zhang, Xue,Fu, Lishan,Wang, Qiming,Ji, Shaomin...&Zhang, Wenming.(2019).Electrospun and hydrothermal techniques to synthesize the carbon-coated nickel sulfide microspheres/carbon nanofibers nanocomposite for high performance liquid-state solar cells.COMPOSITES PART B-ENGINEERING,173,
MLA：
Li, Ling,et al."Electrospun and hydrothermal techniques to synthesize the carbon-coated nickel sulfide microspheres/carbon nanofibers nanocomposite for high performance liquid-state solar cells".COMPOSITES PART B-ENGINEERING 173.(2019)
工程技术