Category Technology/Electronics

Two-dimensional metastructured film with Titanium Oxide is fabricated as a photo-catalytic photoanode with exceptional visible light absorption. Credit: Copyright UNIST

A new multilayered (Au NPs/TiO2/Au) photoelectrode boosts ability of solar water-splitting to produce hydrogen. According to the research team, this special photoelectrode, inspired by the way plants convert sunlight into energy is capable of absorbing visible light from the sun, and then using it to split water molecules (H2O) into H2, O2.

This multilayered photoelectrode takes the form of 2D hybrid metal-dielectric structure, which mainly consists of 3 layers of gold (Au) film, ultrathin TiO2 layer (20 nm), and gold nanoparticles (Au NPs)...

Crystal structure of Ca-intercalated bilayer graphene fabricated on SiC substrate. Insertion of Ca atoms between two graphene layers causes the superconductivity. Credit: Copyright Tohoku University

Electrons in graphene take a special electronic state called Dirac-cone where they behave as if they have no mass. This allows them to flow at very high speed, giving graphene a very high level of electrical conductivity. This is significant because electrons with no mass flowing with no resistance in graphene could lead to the realization of an ultimately high-speed nano electronic device. The collaborative team of Tohoku Uni and Uni of Tokyo has developed a method to grow high-quality graphene on a silicon carbide (SiC) crystal by controlling the number of graphene sheets...

Universal Declaration of Human Rights recorded into 5D optical data storage. Credit: Image courtesy of University of Southampton

Scientists at the Uni of Southampton have made a major step forward in the development of digital data storage that is capable of surviving for billions of years. Using nanostructured glass, scientists from the University’s Optoelectronics Research Centre (ORC) have developed the recording and retrieval processes of 5D digital data by femtosecond laser writing.

The storage allows unprecedented properties including 360TB/disc data capacity, thermal stability up to 1000C and virtually unlimited lifetime at room temperature (13.8 billion years at 190°C ) opening a new era of eternal data archiving...

University of Utah materials science and engineering associate professor Ashutosh Tiwari holds up a substrate layered with a newly discovered 2-D material made of tin and oxygen. Tiwari and his team have discovered this new material, tin monoxide, which allows electrical charges to move through it much faster than common 3-D material such as silicon. This breakthrough in semiconductor material could lead to much faster computers and mobile devices such as smartphones that also run on less power and with less heat. Credit: Dan Hixson/University of Utah College of Engineering

The semiconductor, made of tin monoxide (SnO), is a layer of 2D material only 1 atom thick, allowing electrical charges to move through it much faster than conventional 3D materials such as silicon...