Science et Technique
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A mixed-cation lead mixed-halide perovskite absorber for tandem solar cells

Metal halide perovskite photovoltaic cells could potentially boost the efficiency of commercial silicon photovoltaic modules from ∼20 toward 30% when used in tandem architectures.

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Microwaves improve green workings of materials used to clean wastewater

A new method for making the material used for cleaning wastewater makes the production process greener - and 20 times faster. Researchers show how using microwaves can reduce the temperature and pressure needed to make photocatalysts.
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Solar water splitting: Putting an extra 'eye' on surface reactions that store sunlight as fuel

Water-splitting cells absorb sunlight and produce fuel. Creating such cells means pairing a material to absorb sunlight and generate electrons with the one that uses those electrons to produce fuel.
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New research exploits extraordinary properties of graphene

Innovative new research has demonstrated how the extraordinary properties of graphene can be exploited to create artificial structures that can be used to control and manipulate electromagnetic radiation over a wide range of wavelengths.
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Discovery advances biowaste conversion to jet fuel

Discovery advances biowaste conversion to jet fuel | Science et Technique | Scoop.it
Researchers at Washington State University Tri-Cities have figured out a way to successfully convert a common wood byproduct into hydrocarbon molecules that could be used as jet fuel.

Via Dr. Stefan Gruenwald
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Measuring nanoscale features with fractions of light

Researchers are seeing the light, but in an altogether different way.
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Des nanocomposites au polystyrène seraient hyperrésistants

Des nanocomposites au polystyrène seraient hyperrésistants | Science et Technique | Scoop.it
Maîtriser l’élaboration de nanocomposites pourrait offrir d’innombrables possibilités de développement de matériaux aux propriétés uniques.
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Dimensionality transition in a newly created material

Iron oxides occur in nature in many forms, often significantly different from each other in terms of structure and physical properties.
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Promising new prototype of battery

An alternative technology to Li-ion has been designed for application in specific sectors. The researchers have developed the first battery using sodium ions in the usual "18650" format, an industry standard.
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Chemists create adaptable metallic-cage gels

Chemists have created a new material that combines the flexibility of polymer gels with the rigid structure provided by metal-based clusters.
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Sequencing algae's genome may aid biofuel production

The complete genetic makeup of a species of ecologically important algae, which may aid in biofuel production, has been sequenced by scientists.
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Microscopy captures real-time view of evolving fuel cell catalysts

Atomic-level imaging of catalysts could help manufacturers lower the cost and improve the performance of emission-free fuel cell technologies.
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The world’s first electrically driven optical antenna

The world’s first electrically driven optical antenna | Science et Technique | Scoop.it
Physicists from the University of Würzburg have managed to use an electric current to emit light from a nanoantenna only 250 nanometres in size. They present their breakthrough in the magazine "Nature Photonics".

Via Dr. Stefan Gruenwald
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Internet des objets : des capteurs sans batterie pour réduire la consommation | Techniques de l'ingénieur

Internet des objets : des capteurs sans batterie pour réduire la consommation | Techniques de l'ingénieur | Science et Technique | Scoop.it

Dans quelques années, la planète sera recouverte par des objets connectés. Selon Cisco, il y en aura 50 milliards en 2020. Pour être alimentés, tous ces capteurs devront trouver une source d'énergie.

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Improvements in wear resistance of metallic materials by using laser

The beneficial effects of a new technique that extends the useful life of stainless steels, aluminum alloys and titanium has been demonstrated by researchers.
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Un textile lumineux pourrait dépolluer l'air ambiant

Un textile lumineux pourrait dépolluer l'air ambiant | Science et Technique | Scoop.it
Une équipe de chercheurs lyonnais a mis au point un textile capable d’absorber certains polluants présents dans l’environnement, grâce à une source de lumière (des Led), des fibres optiques pour la diffuser et un photocatalyseur.
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Photonic 'sintering' may create new solar, electronics manufacturing technologies

Engineers have made a fundamental breakthrough in understanding the physics of photonic 'sintering,' which could lead to many new advances in solar cells, flexible electronics, various types of sensors and other high-tech products printed onto...
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Storing electricity in paper

Storing electricity in paper | Science et Technique | Scoop.it
Researchers at Linköping University’s Laboratory of Organic Electronics, Sweden, have developed power paper – a new material with an outstanding ability to store energy. The material consists of nanocellulose and a conductive polymer.

Via Dr. Stefan Gruenwald
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New process could be white lightning to electronics industry

A new era of electronics and even quantum devices could be ushered in with the fabrication of a virtually perfect single layer of “white graphene."
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Next-generation fuel cells are ready for low-emission electricity production

A new-generation, long-life fuel cell system is under development, offering efficiency higher than that of competing technologies. The project will result in new, energy-efficient and commercially viable applications, say experts.
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Specifically controlling the structure of macromolecules

Researchers will develop new synthesis processes for long-chain molecules in order to characterize and construct them with so far unreached precision. This will result in an innovative leap in a number of material classes, they say.
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Discovery of corrosion-resistant 'stainless magnesium' to enable lightweight vehicles

Discovery of corrosion-resistant 'stainless magnesium' to enable lightweight vehicles | Science et Technique | Scoop.it
Researchers led by a team at UNSW Australia have used the Australian Synchrotron to turn the discovery of an ultra-low density and corrosion-resistant magnesium alloy into the first step toward mass-producing ‘stainless magnesium’, a new...

Via Dr. Stefan Gruenwald
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Testing new magnetic semiconductor material

A novel magnetic semiconductor material that is an alloy of cobalt, iron, chromium and aluminum in which part of the aluminum was replaced with silicon may help reduce the power needed to store data in the computer memory.
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New vision for multifunctional materials

Taking a cue from nature, scientists have deciphered how the biomineral making up the body armor of a chiton mollusk has evolved to create functional eyes embedded in the animal's protective shell.
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Researchers find way to produce large-area graphene 100 times cheaper

Researchers find way to produce large-area graphene 100 times cheaper | Science et Technique | Scoop.it
Graphene has been hailed as a wonder material since it was first isolated from graphite in 2004. Graphene is just a single atom thick but it is flexible, stronger than steel, and capable of efficiently conducting heat and electricity.

Via Dr. Stefan Gruenwald
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