TiO2/ZnO/TiO2 sandwich multi-layer films as a hole-blocking layer for efficient perovskite solar cells

Research output: Contribution to journalArticle

Researchers

  • Jinxia Duan
  • Jiamin Wu
  • Jun Zhang
  • Yang Xu
  • Hao Wang
  • Di Gao
  • Peter Lund

Research units

  • University of Pittsburgh
  • Hubei University

Abstract

A continuous and compact hole-blocking layer is crucial to prevent photocurrent recombination at the photoanode/electrode interface of high-performance mesostructure perovskite-based solar cells. Novel TiO2/ZnO/TiO2 sandwich multi-layer compact film prepared as hole-blocking layer for perovskite solar cell. Herein, TiO2, ZnO, and TiO2 layers were successfully deposited by spin-coating onto FTO glass substrate in sequence. The fill factor and power conversion efficiency of the perovskite solar cell are remarkably improved by the employment of a TiO2/ZnO/TiO2 sandwich compact layer. Perovskite solar cell based on TiO2/ZnO/TiO2 sandwich film has been observed to exhibit maximum incident-photon-to-current conversion efficiency in the visible region (400-780nm) and reach a power conversion efficiency of 12.8% under AM1.5G illumination. Copyright (c) 2016 John Wiley & Sons, Ltd.

Details

Original languageEnglish
Pages (from-to)806-813
Number of pages8
JournalInternational Journal of Energy Research
Volume40
Issue number6
Publication statusPublished - May 2016
MoE publication typeA1 Journal article-refereed

    Research areas

  • TiO2, ZnO, sandwich film, photovoltaic devices, perovskite solar cell, ORGANOMETAL HALIDE PEROVSKITES, LOW-TEMPERATURE, HETEROJUNCTION, SENSITIZERS, ELECTRON, NANOPARTICLES, CH3NH3PBI3, DEPOSITION, LENGTHS, LIGHT

ID: 1570078