Engineered organic halide perovskite solar cells by incorporation of surface-manipulated graphenic nanosheets

  • Raana Sarvari
  • Samira AgbolaghiEmail author
  • Bakhshali MassoumiEmail author


The reduced graphene oxide (rGO) and rGO-g-poly(3-dodecyl thiophene) (PDDT) precursors were applied in the active layers of CH3NH3PbI3 perovskite solar cells. The rGO-g-PDDT modified perovskite devices represented the lower charge-transfer resistance (31.8 Ω cm2), higher short circuit current density (20.86 mA/cm2) and thus the larger performance (14.07%) compared with the pristine (74.2 Ω cm2, 17.90 mA/cm2, 11.10%) and rGO-incorporated devices (82.4 Ω cm2, 13.65 mA/cm2, 8.00%). The grafted-rGO components improved the cell characteristics, whereas the bared rGO nanostructures ruined them. The narrow distribution and thereby the high reproducibility and high performance in perovskite + rGO-g-PDDT photovoltaics were attributed to the improved morphology and enhanced grain size (190 nm vs 400 nm), progressed optical absorbance, and enhanced crystallinity of the CH3NH3PbI3 perovskites through the incorporation of rGO-g-PDDT modifiers.


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Conflicts of interest

There are no conflicts of interest to declare.

Supplementary material

10854_2019_1258_MOESM1_ESM.docx (599 kb)
Supplementary material 1 (DOCX 599 kb)


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Authors and Affiliations

  1. 1.Department of ChemistryPayame Noor UniversityTehranIran
  2. 2.Chemical Engineering Department, Faculty of EngineeringAzarbaijan Shahid Madani UniversityTabrizIran

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