Improved performance of metal foil-based dye-sensitized solar cells with low porosity and short length of TiO2 nanotube underlayer

Myoung Kim, Kyung Won Lee, Lee Woon Jang, Dae Woo Jeon, Jin Woo Ju, Ho Gyeong Yun, In-Hwan Lee

Research output: Contribution to journalArticle

7 Citations (Scopus)


In the present study, we propose low porosity and short length of TiO 2 nanotubes (NTs) as underlayer in dye-sensitized solar cells (DSSCs). Photovoltaic characteristics of DSSCs with and without TiO2 NT underlayer are compared using various electrochemical analyses. Low porosity by small pore diameter, thick walled NT geometry and short length of NT underlayer help efficient charge transfer and reduced recombination at the interface of TiO2 nanoparticles (NPs)/Ti substrate. As a result, we can achieve a conversion efficiency of 6.89% for DSSCs with TiO2 NT underlayer, which is about 20% higher than that obtained from DSSCs with only a TiO2 NPs layer.

Original languageEnglish
Pages (from-to)610-614
Number of pages5
JournalElectrochimica Acta
Publication statusPublished - 2014 Jul 1
Externally publishedYes



  • Dye-sensitized solar cell
  • Metal foil
  • Titanuim oxide nanotubes
  • Underlayer: Anodization

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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