Structural effects of core-modified porphyrins in dye-sensitized solar cells

Yu Xie, Prakash Joshi, Mike Ropp, David Galipeau, Lifeng Zhang, Hao Fong, Youngjae You, Qiquan Qiao

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

A series of core-modified porphyrins with different meso aryl groups (R1), anchoring groups (R2), and core atoms (X) were studied as light-harvesting sensitizers for dye-sensitized solar cells (DSSCs). DSSCs were fabricated using these porphyrins as well as TiO2 nanoparticles with a particle diameter of around 25 nm. A dense layer of TiO2 was deposited as an interfacial layer on fluorine-doped tin dioxide (FTO) substrates. A TiO2 nanocrystalline film was then deposited on the dense layer by spin coating. The comparison of DSSC performance from different core-modified porphyrins was studied. The UV-vis absorption spectroscopy of porphyrin films attached on TiO2 and porphyrin solutions were also measured. The results indicated that both anchoring and meso aryl groups impacted on cell performance. The cell efficiency was correlated to the absorption of porphyrin films attached on TiO2 at the Soret band.

Original languageEnglish (US)
Pages (from-to)903-909
Number of pages7
JournalJournal of Porphyrins and Phthalocyanines
Volume13
Issue number8-9
DOIs
StatePublished - 2009
Externally publishedYes

Keywords

  • Core-modified porphyrins
  • Dye-sensitized solar cells
  • Photovoltaics

ASJC Scopus subject areas

  • Chemistry(all)

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