High performance perovskite solar cells using TiO2 nanospindles as ultrathin mesoporous layer

Yinhua Lv, Bing Cai, Yihui Wu, Shubo Wang, Qike Jiang, Qingshan Ma, Jingyue Liu, Wen Hua Zhang

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Single crystal anatase TiO2 nanospindles (NSs) with highly exposed {101} facets were synthesized and employed as electron transport materials (ETMs) in perovskite solar cells (PSCs). Time-resolved photoluminescence (TRPL) spectra revealed that the TiO2 NSs are more effective than TiO2 nanoparticles in accepting electrons from perovskite. Moreover, the TiO2 nanospindles further endowed the PSCs with good reproducibility and suppressed hysteresis. The best device with TiO2 NSs as ETMs yielded power conversion efficiency (PCE) of 19.6%, demonstrating that the home-made TiO2 NSs is a good ETM for PSCs.

Original languageEnglish (US)
Pages (from-to)951-956
Number of pages6
JournalJournal of Energy Chemistry
Volume27
Issue number4
DOIs
StatePublished - Jul 1 2018

Keywords

  • Electron transport material
  • Perovskite solar cell
  • TiO nanospindles
  • Ultrathin mesoporous layer

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Electrochemistry

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