Dye-sensitized solar cells based on square-planar d8 donor complexes without and with organic acceptors

Wei Hsuan Chen, Joshua M. Hudson, Jordan Katz, Nathan S. Lewis, Mohammad A. Omary

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

Abstract

We have recently shown that square-planar Pt(II) complexes with imine and thiolate ligands are good donor complexes that exhibit electronic absorption bands that can be tuned across the UV-vis-NIR region by varying the ligands and/or adding an organic acceptor. However, in order to be useful for dye-sensitized solar cells, these materials need to be anchored to semiconductor surfaces. We achieve this by either the conventional approach in which carboxylated imines are used (e.g., dcbpy = 4,4′-bypyridine(COOH)2 or cttrpy = 4-[2,2′;6′,2″]-terpyridin-4′-yl-C6H4COOH) or by using nitrile organic acceptors such as TCNQ, which can anchor via their cyano groups. We demonstrated that both approaches lead to dyes that can permanently adsorb to semiconductor surfaces and give the same electronic absorption features as those in solution. Details of our spectral, electrochemical, and solar cell results for such dyes using a variety of ligands and d8 metal centers will be presented.

Original languageEnglish
Title of host publication234th ACS National Meeting, Abstracts of Scientific Papers
Publication statusPublished - Dec 31 2007
Event234th ACS National Meeting - Boston, MA, United States
Duration: Aug 19 2007Aug 23 2007

Publication series

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

Other

Other234th ACS National Meeting
CountryUnited States
CityBoston, MA
Period8/19/078/23/07

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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    Chen, W. H., Hudson, J. M., Katz, J., Lewis, N. S., & Omary, M. A. (2007). Dye-sensitized solar cells based on square-planar d8 donor complexes without and with organic acceptors. In 234th ACS National Meeting, Abstracts of Scientific Papers (ACS National Meeting Book of Abstracts).