Advances in Energy Research

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ZnO nanoparticles with different concentrations inside organic solar cell active layer

  • Saravanan, Shanmugam (Centre for Photonics and Nanotechnology, Sona College of Technology) ;
  • Ismail, Yasser A.M. (Third Generation Solar Cells Laboratory, Department of Physics, Faculty of Science, Al-Azhar University) ;
  • Silambarasan, Murugesan (Centre for Photonics and Nanotechnology, Sona College of Technology) ;
  • Kishi, Naoki (Department of Frontier Materials, Nagoya Institute of Technology) ;
  • Soga, Tetsuo (Department of Frontier Materials, Nagoya Institute of Technology)
  • Received : 2016.09.10
  • Accepted : 2016.11.12
  • Published : 2016.12.25
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Abstract

In the present work, ZnO nanoparticles (NPs) have been dispersed alone in the same solvent of the active layer for improving performance parameters of the organic solar cells. Different concentrations of the ZnO NPs have been blended inside active layer of the solar cell based on poly(3-hexylthiophene) (P3HT), which forms the hole-transport network, and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM), which forms the electron-transport network. In the present investigations, the ZnO NPs may represent an efficient tool for improving light harvesting through light scattering inside active layer, electron mobility, and electron acceptance strength which tend to improve photocurrent and performance parameters of the investigated solar cell. The fill factor (FF) of the ZnO-doped solar cell increases nearly 14% compared to the non-doped solar cell when the doping is 50%. The present investigations show that ZnO NPs improve power conversion efficiency of the solar cell from 1.23% to 1.64% with increment around 25% that takes place after incorporation of 40% as a volume ratio of the ZnO NPs inside P3HT:PCBM active layer.

Keywords

References

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