Journal ArticleDOI
Solar energy conversion by dye-sensitized photovoltaic cells
TLDR
Developing solar cells that are based on the sensitization of mesoscopic oxide films by dyes or quantum dots, and the examples for the first outdoor application of such solar cells will be provided.Abstract:
The quality of human life depends to a large degree on the availability of energy. This is threatened unless renewable energy resources can be developed in the near future. Chemistry is expected to make important contributions to identify environmentally friendly solutions of the energy problem. One attractive strategy discussed in this Forum Article is the development of solar cells that are based on the sensitization of mesoscopic oxide films by dyes or quantum dots. These systems have already reached conversion efficiencies exceeding 11%. The underlying fundamental processes of light harvesting by the sensitizer, heterogeneous electron transfer from the electronically excited chromophore into the conduction band of the semiconductor oxide, and percolative migration of the injected electrons through the mesoporous film to the collector electrode will be described below in detail. A number of research topics will also be discussed, and the examples for the first outdoor application of such solar cells wi...read more
Citations
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Journal ArticleDOI
Optimization the solid-state electrolytes for dye-sensitized solar cells
TL;DR: In this paper, a review of different solid-state electrolytes on dye-sensitized solar cells is presented, with representative examples of composite electrolytes based on addition compounds.
Journal ArticleDOI
Designed Architecture of Multiscale Porous TiO2 Nanofibers for Dye-Sensitized Solar Cells Photoanode
TL;DR: The MSP TiO(2) NFs provided sufficient dye adsorption for light harvesting as well as efficient paths for electrolyte contact, and the one-dimensional structure provides efficient light scattering and fast electron transport.
Journal ArticleDOI
Thermal thiocyanate ligand substitution kinetics of the solar cell dye N719 by acetonitrile, 3-methoxypropionitrile, and 4-tert-butylpyridine
TL;DR: In this article, the kinetics of the thiocyanate substitution of the solar cell sensitizer [Ru(Hdcbpy)2(NCS)2]2−, 2(n-C4H9)4N+ (H2 dcbpy=L=2,2′-bipyridine-4,4′-dicarboxylic acid), known as N719, by acetonitrile, 3-methoxypropionitrile and 4-tert-butylpyr
Journal ArticleDOI
Fabrication of an Efficient Light‐Scattering Functionalized Photoanode Using Periodically Aligned ZnO Hemisphere Crystals for Dye‐Sensitized Solar Cells
TL;DR: DSSCs have recently attracted increasing attention as an ideal photovoltaic concept and solar light-to-electricity conversion efficiencies have now exceeded 11%, which was attained with a 12 μm thick TiO2 nanoparticulate photoanode.
Journal ArticleDOI
Diradical Character Based Design for Singlet Fission of Condensed-Ring Systems with 4nπ Electrons
TL;DR: By applying the diradical character based molecular design guideline for singlet fission, the authors investigated the feasibility of efficient SF in condensed-ring π-conjugated molecules with 4nπ electrons (n = 4, 5,...).
References
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Journal ArticleDOI
A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
TL;DR: In this article, the authors describe a photovoltaic cell, created from low-to medium-purity materials through low-cost processes, which exhibits a commercially realistic energy-conversion efficiency.
Journal Article
Photoelectrochemical cells : Materials for clean energy
TL;DR: In this paper, the authors look into the historical background, and present status and development prospects for photoelectrochemical cells, based on nanocrystalline materials and conducting polymer films.
Journal ArticleDOI
Conversion of light to electricity by cis-X2bis(2,2'-bipyridyl-4,4'-dicarboxylate)ruthenium(II) charge-transfer sensitizers (X = Cl-, Br-, I-, CN-, and SCN-) on nanocrystalline titanium dioxide electrodes
Mohammad Khaja Nazeeruddin,Andreas Kay,I. Rodicio,Robin Humphry-Baker,E. Mueller,Paul Liska,Nick Vlachopoulos,Michael Graetzel +7 more
TL;DR: Cis-X 2 Bis(2,2'-bipyridyl-4,4'-dicarboxylate)ruthenium(II) complexes were prepared and characterized with respct to their absorption, luminescence, and redox behavior.
Journal ArticleDOI
Solid-state dye-sensitized mesoporous TiO2 solar cells with high photon-to-electron conversion efficiencies
Udo Bach,D. Lupo,Pascal Comte,Jacques-E. Moser,F. Weissörtel,Josef Salbeck,H. Spreitzer,Michael Grätzel +7 more
TL;DR: A dye-sensitized heterojunction of TiO2 with the amorphous organic hole-transport material 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenyl-amine)9,9′-spirobifluorene (OMeTAD) was described in this article.
Journal ArticleDOI
Efficient photodiodes from interpenetrating polymer networks
J. J. M. Halls,C. A. Walsh,Neil C. Greenham,E.A. Marseglia,Richard H. Friend,Stephen C. Moratti,A.B. Holmes +6 more
TL;DR: In this paper, the interpenetrating network formed from a phase-segregated mixture of two semiconducting polymers is shown to provide both the spatially distributed interfaces necessary for efficient charge photo-generation, and the means for separately collecting the electrons and holes.