Optics-electrics highways: Plasmonic silver nanowires@TiO2 core-shell nanocomposites for enhanced dye-sensitized solar cells performance

被引：65
作者：
Dong, Hua [1 ]
Wu, Zhaoxin [1 ]
Lu, Fan [2 ]
Gao, Yucui [1 ]
El-Shafei, Ahmed [3 ]
Jiao, Bo [1 ]
Ning, Shuya [1 ]
Hou, Xun [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Key Lab Phys Elect & Devices, Key Lab Photon Technol Informat,Minist Educ, Xian 710049, Peoples R China
[2] Peking Univ, Sch Elect Engn & Comp Sci, State Key Lab Adv Opt Commun Syst & Networks, Beijing, Peoples R China
[3] N Carolina State Univ, Polymer & Color Chem Program, Raleigh, NC 27695 USA
来源：
NANO ENERGY | 2014年 / 10卷
基金：
中国国家自然科学基金;
关键词：
Dye-sensitized solar cells; One-Dimensional Nanostructure; Surface Plasmon Resonance; Plasmonic Waveguide; Etectrics highway; METAL NANOPARTICLES; PROPAGATION; RESONANCE; AG;
D O I：
10.1016/j.nanoen.2014.09.011
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：
In this article, the unique bristled silver nanowires@TiO2 core shell nanostructure (AgNW@TiO2) is introduced into the TiO2 photoanode and applied to assemble dye-sensitized solar cells (DSSCs). The effects of the "optics-electrics highways" composites on the photovoltaic and photocatalytic behaviors of DSSCs are investigated in detail. Experiment research and FDTD simulation indicate that both the localized surface plasmon resonance (LSPR) and plasmonic waveguide effect could enhance light harvesting efficiency. By electrical properties and electrochemical analysis, it is demonstrated that the AgNW@TiO2 significantly accelerates electron transport as well as reduces recombination, then the charge collection efficiency of DSSCs is improved. The composite-modified DSSC exhibits the best performance with the power conversion efficiency of 8.84% which is superior to that of the free-modified DSSC with the PCE of 6.16%. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：181 / 191
页数：11
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