SnO2 interlayer effects on the inverted polymer solar cells


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Özen Y., Candan İ.

Chemical Physics Letters, vol.740, pp.1-5, 2020 (Journal Indexed in SCI) identifier

  • Publication Type: Article / Article
  • Volume: 740
  • Publication Date: 2020
  • Doi Number: 10.1016/j.cplett.2019.137078
  • Title of Journal : Chemical Physics Letters
  • Page Numbers: pp.1-5

Abstract

By inserting a tin oxide (SnO2) thin film layer in between Fluorine-doped Tin Oxide (FTO) and titanium dioxide (TiO2) electron-selective layers, the performance of P3HT: PCBM based bulk-heterojunction type inverted polymer solar cells is considerably enhanced. A device with adding SnO2 layer showed a significant increase in PCE of 2.87% with an improved short-circuit current from 6.8 mA/cm2to 10.40 mA/cm2, compared to a reference device without SnO2 layer (2.18%). The relative increase in PCE value was 31.7%. Such enhancement is assigned to the excellent optical transparency and high electrical conductivity of the wide-band gap of SnO2 thin film layer.