Concept

Nanocrystal solar cell

Publications associées (794)

Cyclometalated Ruthenium Dyes for DSSC

Michael Graetzel, Mohammad Khaja Nazeeruddin

A novel thiocyanate-free cyclometalated ruthenium sensitizer for solar cells is designed and developed. Upon anchoring to nanocrystalline TiO2 films, it exhibits a remarkable incident monochromatic photon-to-current conversion efficiency of 83%. The solar ...

Technical Assoc of Photopolymers Japan2012

Block copolymer-directed assembly of bare metal oxide nanocrystals for energy-related devices

Raffaella Buonsanti

The properties of metal oxide nanocrystals in energy-related devices are strongly dependent on the presence and chem. nature of ligands at their surface, and the architectures they assume in electroactive layers. The article presents a comprehensive strate ...

2012

Mild reactive stripping of coordinating ligands from nanocrystal surfaces using Meerwein's salt

Raffaella Buonsanti, Anna Llordes Gil

Native coordinating ligands acquired during the chem. synthesis of colloidal nanocrystals are optimized primarily for their ability to exert control over nanocrystal size, compn., morphol., and dispersibility, and not necessarily for their final applicatio ...

2012

Investigation on Functionalized Ruthenium-Based Sensitizers to Enhance Performance and Robustness of Dye-Sensitized Solar Cells

Nuttapol Pootrakulchote

It has been increasingly aware to the world today that reserves of fossil fuels are limited and their use has serious environmental side effects. Encouraged by this realization was the evolution of the use of cleaner alternative energy, among which Dye-sen ...

EPFL2012

A New View of Microcrystalline Silicon: The Role of Plasma Processing in Achieving a Dense and Stable Absorber Material for Photovoltaic Applications

Christophe Ballif, Matthieu Despeisse, Grégory Bugnon, Thomas Söderström, Jakub Holovsky, Gaetano Parascandolo, Peter Cuony, Simon Hänni

To further lower production costs and increase conversion efficiency of thin-film silicon solar modules, challenges are the deposition of high-quality microcrystalline silicon (μc-Si:H) at an increased rate and on textured substrates that guarantee efficie ...

2012

Efficient polymer passivation of ligand-stripped nanocrystal surfaces

Raffaella Buonsanti

Water-dispersible, polymer-wrapped nanocrystals are highly sought after for use in biol. and chem., from nanomedicine to catalysis. The hydrophobicity of their native ligand shell, however, is a significant barrier to their aq. transfer as single particles ...

2012

Lifetime blinking in nonblinking nanocrystal quantum dots

Christophe Marcel Georges Galland

Nanocrystal quantum dots are attractive materials for applications as nanoscale light sources. One impediment to these applications is fluctuations of single-dot emission intensity, known as blinking. Recent progress in colloidal synthesis has produced non ...

2012

Phenoxazine dyes in solid-state dye-sensitized solar cells

Ulf Anders Hagfeldt, Lin Yang

Several structural modifications have been made to a sensitizer dye based on the phenoxazine core, which was tested in a solid-state dye-sensitized solar cell configuration based on the hole transporting material 2,2',7,7',-tetrakis(N,N-di-p-methoxyphenyl- ...

2012

Specific Silencing of the REST Target Genes in Insulin-Secreting Cells Uncovers Their Participation in Beta Cell Survival

Emilie Gesina

The absence of the transcriptional repressor RE-1 Silencing Transcription Factor (REST) in insulin-secreting beta cells is a major cue for the specific expression of a large number of genes. These REST target genes were largely ascribed to a function of ne ...

Public Library of Science2012

Electroluminescence properties of organic nanostructures studied by scanning tunnelling microscopy

Klaus Kern, Theresa Lutz, Alexander Kabakchiev

The control of light emission on the scale of individual quantum systems, like molecules or quantum dots, is a field of intense current research. One way to induce light emission from these systems is the local charge injection through the tip of a scannin ...

2012

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