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
A facile hydrothermal synthesis of SrTiO3 for dye sensitized solar cell application
TL;DR: In this article, the vibrational spectra of strontium titanate (SrTiO 3 ) is analyzed by Raman and Fourier Transform Infrared techniques, showing strong first order Raman scattering which is normally absent in bulk SrTiO3 crystal due to breaking of symmetry.
Journal ArticleDOI
Direct Correlation between Ultrafast Injection and Photoanode Performance in Quantum Dot Sensitized Solar Cells
Néstor Guijarro,Qing Shen,Sixto Gimenez,Iván Mora-Seró,Juan Bisquert,Teresa Lana-Villarreal,Taro Toyoda,Roberto Gómez +7 more
TL;DR: In this paper, the performance of QD sensitized solar cells depends mainly on both electron injection from the QDs to the oxide matrix and recombination rates and a direct correlation between ultrafast carrier dynamics and photoanode (and complete solar cell) performance is shown.
Journal ArticleDOI
High Photoelectric Conversion Efficiency of Metal Phthalocyanine/Fullerene Heterojunction Photovoltaic Device
TL;DR: The fundamental physical characteristics of organic photovoltaic (OPV) devices are introduced and several approaches to enhance the energy conversion efficiency of small molecular heterojunction OPV devices based on an optimal metal-phthalocyanine/fullerene (C60) planar heteroj junction thin film structure are reviewed.
Journal ArticleDOI
Preparation and photoelectrocatalytic activity of a nano-structured WO3 platelet film
TL;DR: In this paper, a tungsten trioxide (WO{sub 3}) film was prepared by calcination from a precursor paste including suspended ammonium tungstate and polyethylene glycol.
Journal ArticleDOI
Highly Efficient Dye‐Sensitized Solar Cells Based on Panchromatic Ruthenium Sensitizers with Quinolinylbipyridine Anchors
Chun-Cheng Chou,Fa-Chun Hu,Hsiu-Hsuan Yeh,Hsin-Pei Wu,Yun Chi,John N. Clifford,Emilio Palomares,Shih-Hung Liu,Pi-Tai Chou,Gene-Hsiang Lee +9 more
TL;DR: This 6-quinolin-8-yl-2,2'-bipyridine anchor serves as a prototype for the next generation of Ru(II) sensitizers with any tridentate ancillary and shows remarkable improvement in absorptivity across the whole UV-Vis-NIR spectral regime.
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.