Enhanced conversion efficiency of dye-sensitized solar cells using Sm 2O 3-modified TiO 2 nanotubes

Rui Liu, Liang Sheng Qiang, Wein Duo Yang, Hsin Yi Liu

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

Highly ordered TiO 2 nanotubes grown on a Ti substrate are conveniently modified with samarium oxide (Sm 2O 3) by a hydrothermal method for use in back-illuminated dye-sensitized solar cells. As a down-conversion luminescence material, samarium oxide improves the UV radiation harvesting and thus increases the photocurrent. The results show that Sm 2O 3-modified TiO 2 nanotubes can increase the short-circuit current and the conversion efficiency of dye-sensitized solar cells. When TiO 2 nanotubes are modified by 0.02 M Sm 2O 3, the efficiency is improved by 73.1% compared with bare TiO 2 nanotubes.

Original languageEnglish
Pages (from-to)254-258
Number of pages5
JournalJournal of Power Sources
Volume223
DOIs
Publication statusPublished - 2013 Feb 1

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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