Concept

Émissivité

Publications associées (74)

Dual-Color Electroluminescence from Dot-in-Bulk Nanocrystals

The emission color from colloidal semiconductor nanocrystals (NCs) is usually tuned through control of particle size, while multicolor emission is obtained by mixing NCs of different sizes within an emissive layer. Here, we demonstrate that recently introd ...

Amer Chemical Soc2014

Reversible, zinc-selective chemical reactions that enable imaging biological Zn2+ at long wavelengths

Pablo Rivera Fuentes

Fluorescent sensors are valuable tools for investigating the biochem. of metal cations, notably calcium and zinc. Most probes rely on quenching of photoinduced electron transfer as a fluorescence turn-on mechanism. The information that can be obtained from ...

American Chemical Society2014

Novel black selective coating for tubular solar absorbers based on a sol-gel method

Jean-Louis Scartezzini, Andreas Schueler, Martin Python, Martin Joly, Yannik Antonetti, Thomas Gascou, Marina Garcia Gonzalez

Multi layered chrome-free black selective surfaces for solar thermal energy conversion were produced by a low-cost sol gel dip-coating method. The optical properties of the Cu-Co-Mn-Si-O based nanocrystalline thin films have been characterized by spectroph ...

Elsevier2013

Energy-Efficient Sol-Gel Process for Production of Nanocomposite Absorber Coatings for Tubular Solar Thermal Collectors

Andreas Schueler, Martin Python, Martin Joly, Yannik Antonetti, Thomas Gascou, Marina Garcia Gonzalez

The energy efficiency of production processes for components of solar energy systems is an important issue. Other factors which are important for the production of products such as black selective solar coatings include production speed, cycle time and hom ...

EPFL Solar Energy and Building Physics Laboratory (LESO-PB)2013

Switchable Selective Absorber Coatings for Overheating Protection of Solar Thermal Collectors

Antonio Paone

Overheating is a common problem both with the use of active and passive solar energy in solar thermal energy systems and in highly glazed buildings. In solar thermal collectors, the elevated temperatures occurring during stagnation result in reduced lifeti ...

EPFL2013

High quantum efficiency, low emittance electron beam from multifilamentary cathodes.

Christoph Peter Hauri, Fernando Ardana Lamas

We present a new type of metallic cathode, reaching quantum efficiency of 10(3). This value together with the estimated emittance, gives a brilliance of 2.8x10(13) A/m(2), making this cathode an excellent candidate for an ultrashort electron source. (C) 20 ...

Ieee2012

Infrared Thermography of Divertor ELM Heat Loads on TCV

János Márki

Edge Localised Mode (ELM)-induced heat loads, in particular divertor heat loads present one of the main challenges in adopting nuclear fusion as an industrial-scale energy source. At present, the type-I ELMy plasma regime is chosen as the most suitable ope ...

EPFL2012

Thermal Balancing of Liquid-Cooled 3D-MPSoCs Using Channel Modulation

David Atienza Alonso, Arvind Raj Mahankali Sridhar

While possessing the potential to replace conventional air-cooled heat sinks, inter-tier microchannel liquid cooling of 3D ICs also creates the problem of increased thermal gradients from the fluid inlet to outlet ports [1, 2]. These cooling-induced therma ...

ACM and IEEE Press2012

Integrative approach to assess the performance of light-interacting façades and building materials

The challenge is to provide information about visual comfort and energy savings potential on an annual basis while daylight is dynamic, and the interaction between daylight, the façade and the indoor material is complex. A new approach has been build to as ...

2012

Impact of the Vertical Layer Structure on the Emission Directionality of Thin-Film InGaN Photonic Crystal LEDs

Elison de Nazareth Matioli

This work explores the impact of cavity thickness, photonic crystal etch depth, and quantum well placement on the extraction efficiency and emission directionality of thin-film InGaN photonic crystal light-emitting diodes (LEDs). ...

Ieee2011

Graph Chatbot

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Connectez-vous pour utiliser Chat avec Graph Search