Graphene-incorporated nanocrystalline TiO2 films for CdS quantum dot-sensitized solar cells

Guang Zhu, Tao Xu, Tian Lv, Likun Pan, Qingfei Zhao, Zhuo Sun

Research output: Contribution to journalArticlepeer-review

153 Scopus citations

Abstract

Quantum dot-sensitized solar cells (QDSSCs) based on TiO2 film photoanode incorporated with different amounts of graphene are fabricated and their photovoltaic performances are investigated. The results show that the CdS QDSSC incorporating 0.8 wt.% graphene in TiO2 photoanode demonstrates a maximum power conversion efficiency of 1.44%, 56% higher than that without graphene. The performance improvement is ascribed to the increased CdS adsorption, the reduction of electron recombination and back-transport reaction as well as the enhancement of electron transport with the introduction of graphene.

Original languageEnglish
Pages (from-to)248-251
Number of pages4
JournalJournal of Electroanalytical Chemistry
Volume650
Issue number2
DOIs
StatePublished - 1 Jan 2011

Keywords

  • Crystalline oxides
  • Graphene
  • Nanocomposite
  • Quantum dots
  • Solar cells

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