Ultrathin and flexible perovskite solar cells with graphene transparent electrodes

Zhike Liu, Peng You, Chao Xie, Guanqi Tang, Feng Yan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

130 Citations (Scopus)

Abstract

However, highly flexible devices cannot be realized with the conventional transparent electrodes based on conductive oxides since they are rigid and brittle. Here, we demonstrate the fabrication of ultrathin and flexible perovskite solar cells with graphene transparent electrodes for the first time. The flexible devices with the structure of polyethylene terephthalate/graphene/poly(3-hexylthiophene)/CH3NH3PbI3/PC71BM/Ag are prepared on 20 µm-thick polyethylene terephthalate substrates by low-temperature solution process, which show the power conversion efficiency of 11.5% and high bending durability. Moreover, the devices demonstrate the power output per weight (specific weight) of about 5 W/g, which is much higher than those of conventional inorganic solar cells. This work paves a way for preparing flexible perovskite solar cells as well as other optoelectronic devices by using graphene transparent electrodes.
Original languageEnglish
Pages (from-to)151-157
Number of pages7
JournalNano Energy
Volume28
DOIs
Publication statusPublished - 1 Oct 2016

Keywords

  • Flexible electronics
  • Graphene
  • Perovskite solar cell
  • Transparent electrode

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering

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