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Issue 43, 2013
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Enhanced performance of dye-sensitized solar cells by doping Au nanoparticles into photoanodes: a size effect study

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Abstract

Remarkably increased power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs) is achieved by addition of small quantities of Au nanoparticles (NPs) into TiO2 photoanodes. By doping photoanodes with different sizes of Au NPs, the PCE of cells is improved from 9.59% to 10.80% (∼13% enhancement). The maximum increases in open-circuit voltage by 6.69% and short-circuit current density by 7.71% are observed. Detailed characterization of photovoltaic characteristics, electron lifetime and recombination resistance indicates the co-contribution of the photocharging effect, plasmonic effect and scattering effect of Au NPs and their dependence on Au NP sizes. The success of this work provides a simple and generally applicable approach to enhance light harvesting and charge separation for DSSCs.

Graphical abstract: Enhanced performance of dye-sensitized solar cells by doping Au nanoparticles into photoanodes: a size effect study

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Publication details

The article was received on 12 Jul 2013, accepted on 06 Sep 2013 and first published on 09 Sep 2013


Article type: Paper
DOI: 10.1039/C3TA12692G
Citation: J. Mater. Chem. A, 2013,1, 13524-13531
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    Enhanced performance of dye-sensitized solar cells by doping Au nanoparticles into photoanodes: a size effect study

    Q. Wang, T. Butburee, X. Wu, H. Chen, G. Liu and L. Wang, J. Mater. Chem. A, 2013, 1, 13524
    DOI: 10.1039/C3TA12692G

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