Electrospun bismuth ferrite nanofibers for potential applications in ferroelectric photovoltaic devices

Linfeng Fei, Yongming Hu, Xing Li, Ruobing Song, Li Sun, Haitao Huang, Haoshuang Gu, Helen L.W. Chan, Yu Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

34 Citations (Scopus)

Abstract

Bismuth ferrite (BFO) nanofibers were synthesized via a sol-gel-based electrospinning process followed by thermal treatment. The influences of processing conditions on the final structure of the samples were investigated. Nanofibers prepared under optimized conditions were found to have a perovskite structure with good quality of crystallization and free of impurity phase. Ferroelectric and piezoelectric responses were obtained from individual nanofiber measured on a piezoelectric force microscope. A prototype photovoltaic device using laterally aligned BFO nanofibers and interdigital electrodes was developed and its performance was examined on a standard photovoltaic system. The BFO nanofibers were found to exhibit an excellent ferroelectric photovoltaic property with the photocurrent several times larger than the literature data obtained on BFO thin films.
Original languageEnglish
Pages (from-to)3665-3670
Number of pages6
JournalACS Applied Materials and Interfaces
Volume7
Issue number6
DOIs
Publication statusPublished - 1 Jan 2015

Keywords

  • bismuth ferrite
  • electrospinning
  • heat treatment
  • interdigital electrode
  • nanofibers
  • photovoltaic
  • piezoelectric force microscope

ASJC Scopus subject areas

  • Materials Science(all)

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