Effect of dye-semiconductor electronic coupling on solar energy conversion efficiency in dye sensitized solar cells

Ana O. Ramirez, Chunxing She, Kyoung Tae Youm, Tianquan Lian, Joseph T. Hupp

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

Abstract

Dye sensitized solar cells have proven a promising approach for solar energy conversion. Optimization of overall efficiency has primarily focused on modification of dye absorption/spectral coverage, electrodes, and electrolyte composition. An important remaining issue is how the absorbed-photon-to-current efficiency (APCE) is effected by the dye-semiconductor electronic coupling. This coupling may be significantly dependent upon the linker, which serves to both anchor the dye to the surface and also mediates the electron transfer. This work focuses on the effect of structural modification of the linker group on charge injection and therefore the solar to electrical energy conversion efficiency. The role of frontier orbital energy levels, orbital geometry, and dye substitution pattern (meso or beta positions) is probed to understand the role of electronic coupling and subsequently any effect on efficiency.

Original languageEnglish
Title of host publication233rd ACS National Meeting, Abstracts of Scientific Papers
Publication statusPublished - Dec 28 2007
Event233rd ACS National Meeting - Chicago, IL, United States
Duration: Mar 25 2007Mar 29 2007

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Other

Other233rd ACS National Meeting
CountryUnited States
CityChicago, IL
Period3/25/073/29/07

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ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Ramirez, A. O., She, C., Youm, K. T., Lian, T., & Hupp, J. T. (2007). Effect of dye-semiconductor electronic coupling on solar energy conversion efficiency in dye sensitized solar cells. In 233rd ACS National Meeting, Abstracts of Scientific Papers (ACS National Meeting Book of Abstracts).