NDLI: Hydrothermal growth of branched hierarchical TiO$_{2}$ nanorod arrays for application in dye-sensitized solar cells

Content Provider	Springer Nature Link
Author	Hu, Ao Wang, Jingyang Qu, Shaohua Zhong, Zhicheng Wang, Song Liang, Guijie
Copyright Year	2016
Abstract	In this study, rutile branched hierarchical TiO$_{2}$ nanorod arrays were prepared on transparent conductive glass (FTO) through a facile two-step hydrothermal method. The microstructure and growth mechanism of branched TiO$_{2}$ nanorod arrays were investigated respectively by means of X-ray diffraction, field-emission scanning electron microscopy and transmission electron microscopy. The dye-sensitized solar cells based on the branched TiO$_{2}$ nanorod arrays which were only about 1.5 μm in length show a overall power conversion efficiency of 2.01%, which is nearly three times as high as that of pure nanorod arrays. The enhanced efficiency can be ascribed to the increased specific surface area from the nanobranches, which can improve the amount of dye adsorption, as well as the better light scattering effect. Furthermore, the electrochemical impedance spectra results show that the branched TiO$_{2}$ nanorod arrays can also decrease the resistance of the electron transfer at the TiO$_{2}$/dye/electrolyte interface, and leading to a rapid electron transport.
Starting Page	3415
Ending Page	3422
Page Count	8
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	28
Issue Number	4
e-ISSN	1573482X
Language	English
Publisher	Springer US
Publisher Date	2016-10-26
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical and Electronic Materials Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Biomaterials Biophysics Condensed Matter Physics Electronic, Optical and Magnetic Materials Bioengineering Electrical and Electronic Engineering Biomedical Engineering

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