Enhanced Efficiency of Dye-sensitized Solar Cells Using rGO@TiO2 Nanotube Hybrids

Chemical Research in Chinese Universities - Tập 34 - Trang 269-273 - 2018
Rui Liu1,2, Yingjie Qiao2, Yingjin Song1, Kehan Song3, Chuan Liu4
1School of Science, Harbin University of Commerce, Harbin, P. R. China
2College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, P. R. China
3Department of Chemistry, Harbin University, Harbin, P. R. China
4Department of Chemistry, Qiqihar University, Qiqihar, P. R. China

Tóm tắt

We established a novel strategy for the synthesis of reduced graphene oxide(rGO)@TiO2 nanotube hybrids using an 18 W UV-assisted photo-catalytic reduction method for utilization as photo-anode of dye-sensitized solar cells(DSSCs). The photo-conversion efficiency of DSSCs was significantly enhanced after the addition of rGO, and in addition, the photo-anode showed decreased internal resistance. Analysis of rGO@TiO2 hybrids by transmissions scanning electron microscopy(TEM), X-ray diffraction(XRD), Raman spectra, N2 adsorption and desorption, atomic force microscopy(AFM) and X-ray photoelectron spectroscopy(XPS) demonstrates that the rGO modified TiO2 nanotubes can increase the short-circuit current and the conversion efficiency of dye-sensitized solar cells. The efficiency is improved by almost two folds as much compared to those of the bare TiO2 nanotubes.

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Chemical Research in Chinese Universities

Tập 34

269-273

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