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
Cyclometalated Ru Complexes of Type [RuII(N∧N)2(C∧N)]z: Physicochemical Response to Substituents Installed on the Anionic Ligand
TL;DR: The sensitivity of the oxidation potentials to the nature, number, and position of the electron-withdrawing/-donating substituents for the entire set of compounds reflect a highest occupied molecular orbital (HOMO) character extended over the metal, the anionic portion of the C--N ligand, and, in the case of 7-9, the conjugated R group.
Journal ArticleDOI
Towards Optimization of Materials for Dye-Sensitized Solar Cells
TL;DR: Dye-sensitized solar cells (DSCs) have received widespread attention owning to their low cost, easy fabrication, and relatively high solar-to-electricity conversion efficiency as discussed by the authors.
Journal ArticleDOI
Rethinking Water Splitting
TL;DR: This paper presents a meta-analyses of the determinants of infectious disease in eight operation rooms of the immune system and shows clear patterns in response to antibiotics and in particular the presence of EMTs.
Journal ArticleDOI
Plasmonic enhancement of visible-light water splitting with Au-TiO2 composite aerogels.
Paul A. DeSario,Jeremy J. Pietron,Devyn E. DeVantier,Todd Brintlinger,Rhonda M. Stroud,Debra R. Rolison +5 more
TL;DR: The magnitude of improvement indicates that in the 3D arrangement either a more accessible photoelectrochemical reaction interphase (three-phase boundary) exists or more efficient conversion of excited surface plasmons into charge carriers occurs, thereby amplifying reactivity over DP Au/TiO2.
Journal ArticleDOI
Effect of Oligothienyl Chain Length on Tuning the Solar Cell Performance in Fluorene-Based Polyplatinynes
Li Liu,Li Liu,Cheuk Lam Ho,Wai Yeung Wong,K. Y. Cheung,Man Kin Fung,Wai Ting Lam,Aleksandra B. Djurišić,Wai Kin Chan +8 more
TL;DR: In this article, a series of solution-processable and strongly visible-light absorbing polyplatinynes containing oligothienyl-fluorene ring hybrids were synthesized and characterized.
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.