news

« BACK

Materials Science



Results 481 - 500 of 873.


Environment - Materials Science - 20.02.2020
Intensified research in concrete and asphalt
As of March 2020, the new "Concrete and Asphalt" lab will strengthen Empa's research in the field of building materials. Innovative technologies and materials for sustainable production and use are particularly in demand in these areas, as these two building materials, with an annual volume of more than 4.5 billion tonnes, account for the largest proportion of all materials used worldwide by far.

Environment - Materials Science - 18.02.2020
How much carbon is buried deep within Earth? New simulation provides clues
Understanding Earth's carbon cycle has important implications for understanding climate change and the health of biospheres. But scientists don't yet understand how much carbon lies deep in Earth's water reservoirs-for example, in water that is under extreme pressure in the mantle-because experiments are difficult to conduct under such conditions.

Physics - Materials Science - 18.02.2020
Creating custom light using 2D materials
Creating custom light using 2D materials
Researchers from the University of Geneva and the University of Manchester have discovered structures based on two-dimensional materials that emit tailor-made light in any colour you could wish for. Finding new semi-conductor materials that emit light is essential for developing a wide range of electronic devices.

Environment - Materials Science - 18.02.2020
Solar technology breakthrough at UQ
Solar technology breakthrough at UQ
The development of next generation solar power technology that has potential to be used as a flexible 'skin' over hard surfaces has moved a step closer, thanks to a significant breakthrough at The University of Queensland. UQ researchers set a world record for the conversion of solar energy to electricity via the use of tiny nanoparticles called 'quantum dots', which pass electrons between one another and generate electrical current when exposed to solar energy in a solar cell device.

Materials Science - Life Sciences - 18.02.2020
How to mend a broken heart
How to mend a broken heart
If the heart muscle is damaged, repairing the constantly active organ is a challenge. Empa researchers are developing a novel tissue adhesive inspired by nature, which is able to repair lesions in muscle tissue. They have taken advantage of the incredible ability of marine mussels to adhere to any kind of surface.

Chemistry - Materials Science - 17.02.2020
Fast-charging, long-running, bendy energy storage breakthrough
A new bendable supercapacitor made from graphene, which charges quickly and safely stores a record-high level of energy for use over a long period, has been developed and demonstrated by UCL and Chinese Academy of Sciences researchers. While at the proof-of-concept stage, it shows enormous potential as a portable power supply in several practical applications including electric vehicles, phones and wearable technology.

Materials Science - Pedagogy - 14.02.2020
Our memory prefers essence over form
Our memory prefers essence over form
Researchers from the University of Geneva and CY Cergy Paris University have shown that current situations conjure up past situations that share deep, structural, similarities. What clues does our memory use to connect a current situation to a situation from the past? The results of a study conducted by researchers from the University of Geneva , Switzerland, - working in collaboration with CY Cergy Paris University in France - contrast sharply with the explanations found until now in the existing literature.

Materials Science - Physics - 13.02.2020
A fast light detector made of two-dimensional materials
A fast light detector made of two-dimensional materials
Two research groups at ETH Zurich have joined forces to develop a novel light detector. It consists of two-dimensional layers of different materials that are coupled to a silicon optical waveguide. In the future, this approach can also be used to make LEDs and optical modulators. Fast and highly efficient modulators as well as detectors for light are the core components of data transmission through fibre optic cables.

Physics - Materials Science - 12.02.2020
New quasiparticle unveiled in room temperature semiconductors
New quasiparticle unveiled in room temperature semiconductors
Physicists from Switzerland and Germany have unveiled fingerprints of the long-sought particle known as Mahan exciton in the room temperature optical response of the popular methylammonium lead halide perovskites. The optical properties of semiconductors are governed by the so-called 'excitons', which are bound pairs of negative electrons and positive holes.

Materials Science - 07.02.2020
Scientists create ’Chemical gardens’ that can be used as bone substitute materials
A new way of making bone-replacement materials that allows for cells to grow around and inside them has been developed by researchers at the University of Birmingham. The team adopted a novel approach called chemobrionics, in which chemical components are controllably driven to react together in specific ways, enabling the self-assembly of intricate bio-inspired structures.

Physics - Materials Science - 07.02.2020
A novel formulation to explain heat propagation
A novel formulation to explain heat propagation
Researchers at EPFL and MARVEL have developed a novel formulation that describes how heat spreads within crystalline materials. This can explain why and under which conditions heat propagation becomes fluid-like rather than diffusive. Their equations will make it easier to design next-generation electronic devices at the nanoscale, in which these phenomena can become prevalent.

Chemistry - Materials Science - 06.02.2020
Smart design of new materials could improve energy storage technologies
Materials that can be precisely designed at the nanoscale could allow 'supercapacitors' to store more energy while maintaining their fast charge time. Researchers from the Huazhong University of Science and Technology, Imperial College London and the Massachusetts Institute of Technology performed simulations and experiments that show special electrode materials could be precisely engineered to produce supercapacitors that charge quickly and store more energy.

Materials Science - Environment - 06.02.2020
Researchers develop a roadmap for growth of new solar cells
Researchers develop a roadmap for growth of new solar cells
Starting with higher-value niche markets and then expanding could help perovskite-based solar panels become competitive with silicon. Materials called perovskites show strong potential for a new generation of solar cells, but they've had trouble gaining traction in a market dominated by silicon-based solar cells.

Materials Science - Environment - 06.02.2020
Fast and cheap track to new types of solar cells
Fast and cheap track to new types of solar cells
The semiconductor perovskite is seen as a new hope to bring the production price of solar cells down below that of silicon used so far. Empa is developing new manufacturing processes to make perovskite solar cells not only cheaper but also faster to produce and make them ready for industrial use. Since the development of the first perovskite solar cell in 2009, its efficiency is now equal to that of a conventional silicon cell.

Environment - Materials Science - 06.02.2020
Simple, solar-powered water desalination
Simple, solar-powered water desalination
System achieves new level of efficiency in harnessing sunlight to make fresh potable water from seawater. A completely passive solar-powered desalination system developed by researchers at MIT and in China could provide more than 1.5 gallons of fresh drinking water per hour for every square meter of solar collecting area.

Materials Science - Electroengineering - 05.02.2020
Engineers mix and match materials to make new stretchy electronics
Engineers mix and match materials to make new stretchy electronics
Next-generation devices made with new "peel and stack" method may include electronic chips worn on the skin. Because computer chips are rigid, the electronic devices that they power, such as our smartphones, laptops, watches, and televisions, are similarly inflexible. Now a process developed by MIT engineers may be the key to manufacturing flexible electronics with multiple functionalities in a cost-effective way.

Physics - Materials Science - 04.02.2020
New quasi-particle discovered: the Pi-ton
New quasi-particle discovered: the Pi-ton
Actually they had been looking for something completely different, but they found a previously unknown quasi-particle: A bound state of two electrons, two holes and light. In physics, there are very different types of particles: Elementary particles are the fundamental building blocks of matter. Other particles, such as atoms, are bound states consisting of several smaller constituents.

Chemistry - Materials Science - 03.02.2020
New electrode design may lead to more powerful batteries
New electrode design may lead to more powerful batteries
An MIT team has devised a lithium metal anode that could improve the longevity and energy density of future batteries. New research by engineers at MIT and elsewhere could lead to batteries that can pack more power per pound and last longer, based on the long-sought goal of using pure lithium metal as one of the battery's two electrodes, the anode.

Materials Science - 31.01.2020
Harnessing the moiré effect to make transparent images
Researchers at EPFL have developed a material that combines transparent properties with the moiré effect to produce images. The technology could have interesting decorative and anti-forgery applications. Applying a moiré pattern to a transparent material is a new and surprising way of creating images.

Materials Science - Physics - 31.01.2020
Nanospirals that form as molten metals solidify could be key to new materials-and even invisibility
FACULTY Q&A Humans have been cooling metal mixtures from liquid to solid for thousands of years. But surprisingly, not much is known about exactly what happens during the process of solidification. Particularly puzzling is the solidification of eutectics, which are mixtures of two or more solid phases.