Holographically defined TiO2 electrodes for dye-sensitized solar cells

Woo Min Jin, Ju Hwan Shin, Chang Yeol Cho, Ji Hwan Kang, Jong Hyeok Park, Jun Hyuk Moon

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

We describe a multibeam interference lithography for creating 3D polymeric porous structures. The coating of a TiO2 shell and subsequent removal of the template produce holographically defined TiO2 (h-TiO 2) electrodes. We analyze the morphological features of the h-TiO2 electrodes and consider their applicability to dye-sensitized solar cells (DSSCs). Specifically, the performance of the h-TiO2 electrode was evaluated by comparison with a macroporous TiO2 electrode produced from colloidal crystals. The h-TiO2 structure possesses a larger specific area than the inverted colloidal crystals because of a bicontinuous air network with the TiO2 shell. Consequently, the h-TiO2 electrode can produce a 30% higher photogenerated electron current.

Original languageEnglish
Pages (from-to)2970-2973
Number of pages4
JournalACS Applied Materials and Interfaces
Volume2
Issue number11
DOIs
Publication statusPublished - 2010 Nov 24

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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