Nitrogen doped TiO2/Graphene nanofibers as DSSCs photoanode

被引：29

作者：

Gao, Ningxiao ^{[1
]}

Wan, Tingting ^{[1
]}

Xu, Zhiyang ^{[2
]}

Ma, Liansheng ^{[1
]}

Ramakrishna, Seeram ^{[3
]}

Liu, Yong ^{[2
]}

机构：

[1] Beijing Univ Chem Technol, Coll Mech & Elect Engn, Beijing 100029, Peoples R China

[2] Beijing Univ Chem Technol, Beijing Key Lab Adv Funct Polymer Composites, Coll Mat Sci & Engn, Beijing 100029, Peoples R China

[3] Natl Univ Singapore, Ctr Nanofibers & Nanotechnol, Singapore 1157, Singapore

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2020年 / 255卷

基金：

中国国家自然科学基金;

关键词：

Dye-sensitized solar cell; Electrospinning; Hydrothermal method; Semiconductors; SENSITIZED SOLAR-CELLS; TIO2; PERFORMANCE; EFFICIENCY; COMPOSITES; COLLECTION; ELECTRODES;

D O I：

10.1016/j.matchemphys.2020.123542

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Photoanode optimization of the dye-sensitized solar cell is a crucial part of its performance improvement. In this study, graphene-containing TiO2 nanofibers were prepared by electrospinning, and the nitrogen element was doped via the hydrothermal method. After that, a nitrogen-graphene co-doped TiO2 nanofiber photoanode was prepared using a doctor blade coating process. Micromorphological characterization revealed that nitrogen and graphene were successfully doped into composite nanofibers with favorable morphology and distribution. Ultraviolet-visible light spectroscopy and monochromatic light conversion efficiency data demonstrated that the doping of nitrogen enhanced the cell's response to sunlight. The J-V curve was obtained under solar simulation, and the conversion efficiency of 5.01% was reached, which was 26% higher than that of undoped. Therefore, the co-doped composite fiber makes a promising prospect for further applications.

引用

页数：8

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