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
CdS Quantum Dots-Sensitized TiO2 Nanorod Array on Transparent Conductive Glass Photoelectrodes
TL;DR: In this paper, the formation of CdS quantum dots (QDs) on the vertically aligned TiO2 nanorods photoelectrode was carried out by chemical bath deposition.
Journal ArticleDOI
Enhancing Solar Cell Efficiencies through 1-D Nanostructures
Kehan Yu,Junhong Chen +1 more
TL;DR: In this paper, a review of the use of 1D nanomaterials for enhancing solar cell efficiencies is presented, including nanotubes, nanowires, and nanorods.
Journal ArticleDOI
Near-band-edge optical responses of solution-processed organic–inorganic hybrid perovskite CH3NH3PbI3 on mesoporous TiO2 electrodes
TL;DR: In this article, the near-band-edge optical responses of solution-processed CH3NH3PbI3 on mesoporous TiO2 electrodes, which are utilized in mesoscopic heterojunction solar cells, were studied.
Journal ArticleDOI
Large photocurrent generation in dye-sensitized ZnO solar cells
Masaru Saito,Shinobu Fujihara +1 more
TL;DR: ZnO photoanodes were fabricated using nanocrystalline pastes and their N719-sensitization led to a high short-circuit photocurrent density of 18.11 mA cm−2 and a solar energy conversion efficiency of 6.58% as mentioned in this paper.
Journal ArticleDOI
New Diketopyrrolopyrrole (DPP) Dyes for Efficient Dye-Sensitized Solar Cells
TL;DR: In this article, two metal-free dyes (DPP-I and DPP-II) with a diketopyrrolopyrrole core were synthesized for dye-sensitized solar cells (DSSCs).
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.