Laser-induced control of TiO 2 porosity for enhanced photovoltaic behavior

Junghwan Yoon, Minhea Jin, Myeongkyu Lee

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Porosity values between 0.12 and 0.40 are achieved in a controllable way for TiO 2 electrodes in dye-sensitized solar cells by irradiation with a pulsed Nd:YAG laser at 1064 nm. Whereas the electron lifetime and diffusion distance increase with reduced porosity, the amount of adsorbed dyes remains almost constant. This greatly enhances the photocurrent density and energy conversion efficiency of the solar cell.

Original languageEnglish
Pages (from-to)3974-3978
Number of pages5
JournalAdvanced Materials
Volume23
Issue number34
DOIs
Publication statusPublished - 2011 Sep 8

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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