Enhanced Electrocatalytic Activity by RGO/MWCNTs/NiO Counter Electrode for Dye-sensitized Solar Cells

被引：40
作者：
Al-Bahrani, Majid Raissan [1 ,2 ]
Ahmad, Waqar [1 ]
Mehnane, Hadja Fatima [3 ,4 ]
Chen, Ying [1 ]
Cheng, Ze [5 ]
Gao, Yihua [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Phys, Wuhan Natl Lab Optoelect, Ctr Nanoscale Characterizat & Devices, Wuhan 430074, Peoples R China
[2] Thi Qar Univ, Fac Sci, Nasiriyah, Iraq
[3] Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Peoples R China
[4] Wuhan Univ, Minist Educ, Key Lab Artificial Micro & Nanostruct, Wuhan 430072, Peoples R China
[5] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China
来源：
NANO-MICRO LETTERS | 2015年 / 7卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Graphene oxide; Carbon nanotubes; Nickel oxide; Counter electrode; Dye-sensitized solar cells; CARBON NANOTUBES; LOW-COST; PERFORMANCE; EFFICIENCY; GRAPHENE; REDUCTION; CATALYST; FILMS; NANOPARTICLES; FABRICATION;
D O I：
10.1007/s40820-015-0043-7
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We applied the reduced graphene oxide/multi-walled carbon nanotubes/nickel oxide (RGO/MWCNTs/NiO) nanocomposite as the counter electrode (CE) in dye-sensitized solar cells (DSSCs) on fluorine-doped tin oxide substrates by blade doctor method. Power conversion efficiency (PCE) of 8.13 % was achieved for this DSSCs device, which is higher than that of DSSCs devices using NiO, RGO, and RGO/NiO-CE (PCE = 2.71 %, PCE = 6.77 % and PCE = 7.63 %). Also, the fill factor of the DSSCs devices using the RGO/MWCNTs/NiO-CE was better than that of other CEs. The electron transfer measurement of cyclic voltammetry and electrochemical impedance spectroscopy showed that RGO/MWCNTs/NiO film could provide fast electron transfer between the CE and the electrolyte, and high electrocatalytic activity for the reduction of triiodide in a CE based on RGO/MWCNTs/NiO in a DSSC.
引用
收藏
页码：298 / 306
页数：9
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