Radial electron collection in dye-sensitized solar cells

Alex B.F. Martinson, Jeffrey W. Elam, Jun Liu, Michael J. Pellin, Tobin J. Marks, Joseph T. Hupp

Research output: Contribution to journalArticlepeer-review

128 Scopus citations


We introduce a new photoelectrode architecture consisting of concentric conducting and semiconducting nanotubes for use in dye-sensitized solar cells (DSSCs). Atomic layer deposition is employed to grow indium tin oxide (ITO) within a porous template and subsequently coat the high area photoelectrode with amorphous TiO 2. Compared with control devices lacking a current collector within the pores, the new photoelectrode geometry exhibits dramatically higher current densities, an effect attributed to the radial collection of electrons.

Original languageEnglish (US)
Pages (from-to)2862-2866
Number of pages5
JournalNano letters
Issue number9
StatePublished - Sep 2008

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering


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