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Issue 3, 2011
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Enhanced photovoltaic performance of dye-sensitized solar cells using a highly crystallized mesoporous TiO2 electrode modified by boron doping

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Abstract

Highly crystallized boron-doped anatase TiO2 nanoparticles are prepared by a facile synthetic route and successfully used as the photoanode of dye-sensitized solar cells (DSCs). We have observed that the boron doping could improve the crystallinity of TiO2. Moreover, the highly crystallized anatase boron-doped TiO2 were analyzed by electron paramagnetic resonance (EPR), X-ray photoelectron spectroscopy (XPS) and UV-vis spectroscopy, and the internal resistances of the boron-doped DSCs were studied by measuring the electrochemical impedance spectra (EIS). The improved photocurrent density of the boron-doped DSCs is due to a significant enhancement of IPCE in the range 370–650nm in comparison with that of the undoped DSC. Meanwhile, the energy-conversion efficiency of the cell based on the B-doped TiO2 electrode is enhanced significantly, by about 9%, compared to that of the undoped DSC. Overall, DSCs based on B-doped electrodes show good stability and remain over 95% of their initial efficiency under visible light soaking for more than 2400 h.

Graphical abstract: Enhanced photovoltaic performance of dye-sensitized solar cells using a highly crystallized mesoporous TiO2 electrode modified by boron doping

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Publication details

The article was received on 04 Sep 2010, accepted on 03 Oct 2010 and first published on 11 Nov 2010


Article type: Paper
DOI: 10.1039/C0JM02941F
Citation: J. Mater. Chem., 2011,21, 863-868
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    Enhanced photovoltaic performance of dye-sensitized solar cells using a highly crystallized mesoporous TiO2 electrode modified by boron doping

    H. Tian, L. Hu, C. Zhang, S. Chen, J. Sheng, L. Mo, W. Liu and S. Dai, J. Mater. Chem., 2011, 21, 863
    DOI: 10.1039/C0JM02941F

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