Journal ArticleDOI
A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
TLDR
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.Abstract:
THE large-scale use of photovoltaic devices for electricity generation is prohibitively expensive at present: generation from existing commercial devices costs about ten times more than conventional methods1. Here we describe a photovoltaic cell, created from low-to medium-purity materials through low-cost processes, which exhibits a commercially realistic energy-conversion efficiency. The device is based on a 10-µm-thick, optically transparent film of titanium dioxide particles a few nanometres in size, coated with a monolayer of a charge-transfer dye to sensitize the film for light harvesting. Because of the high surface area of the semiconductor film and the ideal spectral characteristics of the dye, the device harvests a high proportion of the incident solar energy flux (46%) and shows exceptionally high efficiencies for the conversion of incident photons to electrical current (more than 80%). The overall light-to-electric energy conversion yield is 7.1-7.9% in simulated solar light and 12% in diffuse daylight. The large current densities (greater than 12 mA cm-2) and exceptional stability (sustaining at least five million turnovers without decomposition), as well as the low cost, make practical applications feasible.read more
Citations
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Patent
Components and methods for use in electro-optic displays
Richard D. Lecain,Ara N. Knaian,Steven J. O'neil,Gregg M. Duthaler,Guy M. Danner,Robert W. Zehner,Alberto Goenaga,Benjamin Max Davis,Randolph W. Chan,Jonathan D. Albert,Glen Crossley +10 more
TL;DR: In this article, the front plane laminate of an electro-optic display is described as a continuous web, cut to size, the release sheet removed and the laminate laminated to a backplane to form a display.
Journal ArticleDOI
Light-driven water oxidation for solar fuels
Karin J. Young,Lauren A. Martini,Rebecca L. Milot,Robert C. Snoeberger,Victor S. Batista,Charles A. Schmuttenmaer,Robert H. Crabtree,Gary W. Brudvig +7 more
TL;DR: Recent progress in the field of photoelectrochemical water oxidation is reviewed with emphasis on water-oxidation photoanodes inspired by the design of functionalized thin film semiconductors of typical dye-sensitized solar cells.
Journal ArticleDOI
Physics and chemistry of CdTe/CdS thin film heterojunction photovoltaic devices: fundamental and critical aspects
TL;DR: In this article, a review of the materials aspects of CdTe/CdS solar cells for solar energy conversion is presented, focusing on fundamental and critical aspects like: (a) choice of window layer and absorber layer; (b) drawbacks associated with the device including environmental problems, optical absorption losses and back contact barriers; (c) structural dynamics at CdS-CdTe interface; (d) influence of junction activation process by CdCl2 or HCF2Cl treatment; (e) interface and grain boundary passivation effects; (f
Journal ArticleDOI
Dependence of TiO2 Nanoparticle Preparation Methods and Annealing Temperature on the Efficiency of Dye-Sensitized Solar Cells
S. Nakade,M. Matsuda,S. Kambe,Y. Saito,T. Kitamura,T. Sakata,Y. Wada,Hirotada Mori,Sayaka Yanagida +8 more
TL;DR: In this paper, the performance of dye-sensitized solar cells with different TiO2 nanoparticle preparation methods and different annealing temperatures with various film thicknesses was studied.
Journal ArticleDOI
Modified metal-organic frameworks as photocatalysts
TL;DR: In this article, the progress of various modification strategies, including decoration of organic linker or metal center, combination with semiconductors and metal nanoparticles loading, applied to different MOFs (mainly UiOs, MILs, and ZIFs), and their specific applications were summarized as well.
References
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Electrochemical Photolysis of Water at a Semiconductor Electrode
Akira Fujishima,Kenichi Honda +1 more
TL;DR: Water photolysis is investigated by exploiting the fact that water is transparent to visible light and cannot be decomposed directly, but only by radiation with wavelengths shorter than 190 nm.
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Vectorial electron injection into transparent semiconductor membranes and electric field effects on the dynamics of light-induced charge separation
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Journal ArticleDOI
The impact of semiconductors on the concepts of electrochemistry
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Journal ArticleDOI
Electrochemistry and photochemistry of MoS2 layer crystals. I
H. Tributsch,J.C. Bennett +1 more
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