Hierarchical micro/nano-structured titanium nitride spheres as a high-performance counter electrode for a dye-sensitized solar cell

被引：56

作者：

Zhang, Xiaoying ^{[1
,2
]}

Chen, Xiao ^{[1
]}

Dong, Shanmu ^{[1
,2
]}

Liu, Zhihong ^{[1
]}

Zhou, Xinhong ^{[3
]}

Yao, Jianhua ^{[1
]}

Pang, Shuping ^{[1
]}

Xu, Hongxia ^{[1
]}

Zhang, Zhongyi ^{[1
,2
]}

Li, Lanfeng ^{[1
,3
]}

Cui, Guanglei ^{[1
]}

机构：

[1] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China

[3] Qingdao Univ Sci & Technol, Qingdao 266101, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 13期

关键词：

CARBON NANOTUBES; CHARGE-TRANSPORT; LOW-COST; EFFICIENT; GRAPHENE; CARBIDES; FILMS; ION;

D O I：

10.1039/c2jm30420a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Hierarchical micro/nano-structured TiN spheres (micro/nano-TiNs) counter electrodes are fabricated by coating hierarchical micro/nano-TiO2 paste onto Ti foil followed by a nitridation reaction. Compared with particulate TiN and TiN flat electrodes, the as-prepared hierarchical micro/nano-TiNs electrode based dye-sensitized solar cells (DSCs) delivers significantly improved photovoltaic performances due to the presence of the hierarchical structure. In particular, V-OC is enhanced by about 60 mV, which may be predominantly attributed to the gaining of favourable interfacial active sites and the traces of N-doped carbon residues. After an initial optimization of the particle sizes of the hierarchical micro/nano-TiNs, the reflectance effect of large submicroscale particles is attempted to improve the I-SC. The highest overall conversion efficiency yields 7.83%, which is 30% higher than that of Pt/FTO (6.04%).

引用

页码：6067 / 6071

页数：5

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