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
High Molar Extinction Coefficient Ion-Coordinating Ruthenium Sensitizer for Efficient and Stable Mesoscopic Dye-Sensitized Solar Cells†
Dai-Bin Kuang,Cedric Klein,Seigo Ito,Jacques-E. Moser,Robin Humphry-Baker,Shaik M. Zakeeruddin,Michael Grätzel +6 more
TL;DR: In this paper, a high molar extinction coefficient ion-coordinating ruthenium sensitizer was synthesized and characterized using H-1 NMR, Fourier transform IR (FTIR), and UV/vis spectroscopies and cyclic voltammetry.
Journal ArticleDOI
Rutile TiO2 nano-branched arrays on FTO for dye-sensitized solar cells
TL;DR: The dye-sensitized solar cells based on the TiO(2) nano-branched arrays show a short-circuit current intensity of 10.05 mA cm(-2) and a light-to-electricity conversion efficiency of 3.75%, which is nearly three times as high as that of bare nanorod arrays, due to the preferable nanostructure.
BookDOI
Electrospun nanofibers for energy and environmental applications
Bin Ding,Jianyong Yu +1 more
TL;DR: In this article, the authors discuss the application of nanofibers in various energy applications, such as supercapacitors and phase change materials for thermal energy storage, as well as for air filtration and liquid filtering.
Journal ArticleDOI
Sub‐Nanometer Conformal TiO2 Blocking Layer for High Efficiency Solid‐State Perovskite Absorber Solar Cells
Aravind Kumar Chandiran,Aswani Yella,Matthew T. Mayer,Peng Gao,Mohammad Khaja Nazeeruddin,Michael Grätzel +5 more
TL;DR: A mere 2 nm conformal titanium dioxide overlayer coated by atomic layer deposition is shown to act as a blocking layer for high-efficiency solid-state perovskite (CH3NH3PbI3) absorber-based solar cells.
Journal ArticleDOI
Surface Passivation of Nanoporous TiO2 via Atomic Layer Deposition of ZrO2 for Solid-State Dye-Sensitized Solar Cell Applications
Tina C. Li,Márcio Sousa Góes,Francisco Fabregat-Santiago,Juan Bisquert,Paulo Roberto Bueno,Chaiya Prasittichai,Joseph T. Hupp,Tobin J. Marks +7 more
TL;DR: In this paper, an atomic layer deposition was used to passivate surface trap states in mesoporous TiO2 nanoparticles for solid-state dye-sensitized solar cells based on 2,2,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-OMeTAD).
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.