Solution processed graphene structures for perovskite solar cells

Munkhbayar Batmunkh, Cameron J. Shearer, Mark J. Biggs, Joseph G. Shapter

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

Organometallic trihalide perovskite light absorber based solar cells have drawn increasing attention because of their recent rapid increase in power conversion efficiency (PCE). These photovoltaic cells have relied significantly on transparent conducting oxide (TCO) electrodes which are costly and brittle. Herein, solution processed transparent conductive graphene films (TCGFs) are utilized, for the first time, as an alternative to traditional TCO electrodes at the electron collecting layer in perovskite solar cells (PSCs). By investigating and optimizing the trade-off between transparency and sheet resistance (Rs) of the graphene films, a PCE of 0.62% is achieved. This PCE is further improved to 0.81% by incorporating graphene structures into both compact and mesoporous TiO2 layers of the solar cell. We anticipate that the present study will lead to further work to develop graphene-based transparent conductive electrodes for future solar cell devices.

Original languageEnglish
Pages (from-to)2605-2616
Number of pages12
JournalJournal of Materials Chemistry A
Volume4
Issue number7
Early online date25 Jan 2016
DOIs
Publication statusPublished - 21 Feb 2016

ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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    Batmunkh, M., Shearer, C. J., Biggs, M. J., & Shapter, J. G. (2016). Solution processed graphene structures for perovskite solar cells. Journal of Materials Chemistry A, 4(7), 2605-2616. https://doi.org/10.1039/c5ta08996d