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    • Effect of TiO2–graphene nanocomposite photoanode on dye-sensitized solar cell performance

      Akbar Eshaghi Abbas Ail Aghaei

      Volume 38 Issue 5 September 2015 pp 1177-1182

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/038/05/1177-1182

    • Keywords

       

      Photoanode; graphene; nanocomposite; dye-sensitized solar cell; efficiency.

    • Abstract

       

      In this research work, graphene–TiO2 photoanodes with various graphene concentrations (0, 0.5, 1, 1.5 and 2 wt%) were deposited on fluorine tin oxide glass substrates as working electrodes for dyesensitized solar cells. The structure, morphology, surface composition and dye adsorption of the photoanodes were investigated by X-ray diffraction, field emission scanning electron microscopy, X-ray photoelectron spectroscopy and UV–VIS–NIR spectroscopy, respectively. The photocurrent–voltage characteristics of the dye-sensitized solar cells were examined using a solar simulator. The results indicated that the dye adsorption on photoanode surfaces increases with the increase in the graphene content. In addition, dye-sensitized solar cells efficiency increases with the increase in the graphene content to 1.5 wt% and then decreased. The efficiency of the dyesensitized solar cell, based on the TiO2–1.5 wt% graphene nanocomposite, increased by 42% with respect to the pristine sample.

    • Author Affiliations

       

      Akbar Eshaghi1 Abbas Ail Aghaei1

      1. Faculty of Materials Science and Engineering, Maleke Ashtar University of Technology, P.O. Box 83145-115, Shahinshahr, Iran

    • Dates

       
      Published
      September 2015
      Manuscript received
      29 June 2014
      Accepted
      16 April 2015

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