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

doi:10.1007/s40242-018-7287-y

Chemical Research in Chinese Universities ›› 2018, Vol. 34 ›› Issue (2): 269-273.doi: 10.1007/s40242-018-7287-y

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

LIU Rui^1,2, QIAO Yingjie², SONG Yingjin¹, SONG Kehan³, LIU Chuan⁴

1. School of Science, Harbin University of Commerce, Harbin 150076, P. R. China;
2. College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China;
3. Department of Chemistry, Harbin University, Harbin 150050, P. R. China;
4. Department of Chemistry, Qiqihar University, Qiqihar 161006, P. R. China

Received:2017-09-04 Revised:2017-12-20 Online:2018-04-01 Published:2018-01-15
Contact: LIU Rui,E-mail:liur@hrbcu.edu.cn E-mail:liur@hrbcu.edu.cn
Supported by:
Supported by the Postdoctoral Fund of Heilongjiang Province, China(No.LBH-Z16045), the Program of China Postdoctoral (No.2017M611354) and the Project of Youth Talent of Harbin city, China(No.RC2017QN017002).

Abstract

Abstract: 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.

Key words: TiO₂ nanotube array, Reduced graphene oxide(rGO), Hybrid, Dye-sensitized solar cell(DSSC)

LIU Rui, QIAO Yingjie, SONG Yingjin, SONG Kehan, LIU Chuan. Enhanced Efficiency of Dye-sensitized Solar Cells Using rGO@TiO₂ Nanotube Hybrids[J]. Chemical Research in Chinese Universities, 2018, 34(2): 269-273.

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

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