Graphenea launches highly flat monolayer graphene on copper thin film

Graphenea has announced the launch of a new product – highly flat monolayer graphene. The graphene is grown by CVD on copper thin film on a 2” sapphire substrate. With extremely low roughness that is less than 4 nm, this new product is targeted at applications in photonics, high-performance electronics, magnetic memory, and freestanding membranes.

Graphenea's new flat monolayer graphene on copper thin film image

The product aims to meet wafer-scale integration requirements to build uniform graphene devices in a fashion compatible with current industrial fabrication methods. The flat graphene product is ready to be transferred by electrochemical delamination or dry methods since the sapphire substrate is robust enough to withstand mechanical damage, preventing tearing and wrinkling of the thin Cu sheet. The total wafer thickness is 430 micrometers. Full product information can be found in Graphenea's online store.

Superconductivity in bilayer graphene can be turned on or off with a voltage change

An international team of researchers from Spain, the U.S., China and Japan has found that superconductivity in bilayer graphene can be turned on or off with a small voltage change, increasing its usefulness for electronic devices. This follows previous findings regarding twisted bilayer graphene and its ability to exhibit alternating superconducting and insulating regions.

"It's kind of a holy grail of physics to create a material that has superconductivity at room temperature," University of Texas at Austin physicist Allan MacDonald said. "So that's part of the motivation of this work: to understand high-temperature superconductivity better."

Researchers reach graphene-based junctions that are both electrically and mechanically stable

A research team jointly led by University of Warwick and EMPA has tackled a challenging issue of stability and reproducibility in working with graphene, that meant that graphene-based junctions were either mechanically stable or electrically stable but not both at the same time.

Researchers tackle a known limitation of graphene junctions imageCredit: University of Warwick

Graphene and graphene like molecules are attractive choices for electronic components in molecular devices, but have proven very challenging to use in large scale production of molecular devices that will work and be robust at room temperatures. The joint research team from the University of Warwick, EMPA and Lancaster and Bern Universities has reached both electrical and mechanical stability in graphene-based junctions.

Graphene and other 2D materials form an enhanced heat protector for electronics

Researchers from Stanford, NIST, Theiss Research and several others have designed a new heat protector that consists of just a few layers of atomically thin materials, to protect electronics from excess heat.

Cross-section schematic of Gr/MoSe2/MoS2/WSe2 sandwich on SiO2/Si substrate imageCross-section schematic of Gr/MoSe2/MoS2/WSe2 sandwich on SiO2/Si substrate, with the incident Raman laser

The heat protector can reportedly provide the same insulation as a sheet of glass 100 times thicker. “We’re looking at the heat in electronic devices in an entirely new way,” said Eric Pop, professor of electrical engineering at Stanford and senior author of the study.

End-to-end processing chain of 2D materials successfully demonstrated as part of project "HEA2D"

Project "HEA2D", which started in 2016 and set out to investigate the production, qualities, and applications of 2D nanomaterials, recently demonstrated end-to-end processing chain of two-dimensional nanomaterials. The project is a collaboration between AIXTRON, AMO, Coatema, Fraunhofer and Kunststoff-Institut für die mittelständische Wirtschaft (K.I.M.W.).

It was stated that the "HEA2D" consortium successfully demonstrated an end-to-end processing chain of two-dimensional nanomaterials as part of its results. 2D materials integrated into mass production processes have the potential to create integrated and systemic product and production solutions that are socially, economically and ecologically sustainable. Application areas for the technologies developed and materials investigated in this project are mainly composite materials and coatings, highly sensitive sensors, power generation and storage, electronics, information and communication technologies as well as photonics and quantum technologies.

Versarien - Think you know graphene? Think again! Versarien - Think you know graphene? Think again!