graphene tagged posts

Dr Shakil Awan, Lecturer in the School of Computing, Electronics and Mathematics at Plymouth University, said:
Our results for the first time not only confirm the theoretical properties of graphene but also open up many new applications of the material in high-speed electronics and bio-sensing
Dr Awan (pictured right) uses a Cascade probe station and Keysight Parameter Analyser in the Wolfson Nanomaterials and Devices Laboratory in Plymouth

Now research has shown graphene out-performs any other known material, including superconductors, when carrying high-frequency electrical signals compared to direct current, essentially transmitting signals without any additional energy loss...

The atoms in the new structure are arranged in a hexagonal pattern as in graphene, but that is where the similarity ends. The three elements forming the new material all have different sizes; the bonds connecting the atoms are also different. As a result, the sides of the hexagons formed by these atoms are unequal, unlike in graphene. Credit: Madhu Menon

Truly flat and extremely stable, the material is made up of light, inexpensive and earth abundant elements. The new material is made up of silicon, boron and nitrogen. “We used simulations to see if the bonds would break or disintegrate – it didn’t happen,” said Madhu Menon,UK Center for Computational Sciences. “We heated the material up to 1,000 degree Celsius and it still didn’t break.”

While graphene is touted as being the world’s stron...

Solar cells operate by absorbing light first, then converting it into electricity. The most efficient cells needs to do this absorption within a very narrow region of the solar cell material. The narrower this region, the better the cell efficiency. The ability to strongly absorb light by these structures could pave the roadmap to higher cell efficiencies. Credit: University of Surrey

New ultra-thin, patterned graphene sheets will be essential in designing future technologies such as ‘smart wallpaper’ and internet-of-things applications Advanced Technology Institute uses moth-inspired ultrathin graphene sheets to capture light for use in energy production and to power smart sensors...

In a new paper published in Science, researchers at the Harvard and Raytheon BBN Technology have advanced our understanding of graphene’s basic properties, observing for the first time electrons in a metal behaving like a fluid. Credit: Peter Allen/Harvard SEAS

Researchers have made a breakthrough in our understanding of graphene’s basic properties, observing for the first time electrons in a metal behaving like a fluid. This research could lead to novel thermoelectric devices as well as provide a model system to explore exotic phenomena like black holes and high-energy plasmas. In order to make this observation, the team improved methods to create ultra-clean graphene and developed a new way measure its thermal conductivity.

In ordinary, 3D metals, electrons hardly interact with each othe...