Jump to main content
Jump to site search

Issue 7, 2008
Previous Article Next Article

Solid-state dye-sensitized TiO2 solar cells based on a sensitizer covalently wired to a hole conducting polymer

Author affiliations

Abstract

We report on the molecular wiring efficiency of a ruthenium polypyridine complex acting as a sensitizer connected to a poly(3-hexyl)thiophene chain acting as hole transporting material. We have developed an efficient synthetic strategy to covalently connect via an ethanyl spacer a regioregular poly(3-hexyl)thiophene chain to a ruthenium complex. Solid-state dye-sensitized solar cells were prepared either with the latter system or with a similar rutheniumsensitizer but lacking the polymer chain (reference system). The comparison of the photocurrent–photovoltage characteristics of the cells recorded under AM1.5 indicates a two fold improvement of the overall photoconversion efficiencies when the sensitizer is grafted to the hole transporting material (η = 0.27%) relative to the reference system (η = 0.13%). The higher photovoltaic performance can be attributed to the better diffusion-like propagation of the holes from the sensitizer to the counter electrode through the covalently linked polythiophene chain.

Graphical abstract: Solid-state dye-sensitized TiO2 solar cells based on a sensitizer covalently wired to a hole conducting polymer

Back to tab navigation
Please wait while Download options loads

Publication details

The article was received on 01 Oct 2007, accepted on 02 Apr 2008, published on 14 Apr 2008 and first published online on 14 Apr 2008


Article type: Paper
DOI: 10.1039/B715013J
Citation: Photochem. Photobiol. Sci., 2008,7, 789-793
  •   Request permissions

    Solid-state dye-sensitized TiO2 solar cells based on a sensitizer covalently wired to a hole conducting polymer

    C. Houarner-Rassin, E. Blart, P. Buvat and F. Odobel, Photochem. Photobiol. Sci., 2008, 7, 789
    DOI: 10.1039/B715013J

Search articles by author