A core-modified porphyrin as a sensitizer for dye-sensitized solar cells

Yu Xie, Prakash Joshi, Mike Ropp, David Galipeau, Youngjae You, Qiquan Qiao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

A core-modified porphyrin was used as a light harvesting sensitizer for dye-sensitized solar cells (DSSC). The substitution of one nitrogen atom to sulfur atom at the core aromatic system in the porphyrins resulted in the red-shift of porphyrin in UV-Vis spectrum. Two carboxylic acid groups can bind strongly to the surface of an oxide semiconductor, (e.g. TiO{2}). The solid film of porphyrin gave band I absorption with λmax of 695 nm. DSSCs were fabricated with a core-modified porphyrin and a nanocrystalline porous TiO2 layer deposited on fluorine-doped tin dioxide (FTO) glass. The amount of porphyrin attached onto TiO2 surface depended on the concentration of a porphyrin solution. As the solution concentration increased, more porphyrins were absorbed onto the TiO2 surface and the DSSC performance was improved. There was a direct relationship between the concentration of porphyrin solution and the cell performance.

Original languageEnglish (US)
Title of host publication33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
DOIs
StatePublished - 2008
Externally publishedYes
Event33rd IEEE Photovoltaic Specialists Conference, PVSC 2008 - San Diego, CA, United States
Duration: May 11 2008May 16 2008

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371

Conference

Conference33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
CountryUnited States
CitySan Diego, CA
Period5/11/085/16/08

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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