Lifeboat Foundation

Twisted bilayer graphene (tBLG) with van Hove Singularity (VHS) has exhibited novel twist-angle-dependent chemical and physical phenomena. However, scalable production of high-quality tBLG is still in its infancy, especially lacking the angle controlled preparation methods. Here, we report a facile approach to prepare tBLG with large domain sizes (100 μm) and controlled twist angles by a clean layer-by-layer transfer of two constituent graphene monolayers. The whole process without interfacial polymer contamination in two monolayers guarantees the interlayer interaction of the π-bond electrons, which gives rise to the existence of minigaps in electronic structures and the consequent formation of VHSs in density of state. Such perturbation on band structure was directly observed by angle-resolved photoemission spectroscopy with submicrometer spatial resolution (micro-ARPES). The VHSs lead to a strong light–matter interaction and thus introduce ∼20-fold enhanced intensity of Raman G-band, which is a characteristic of high-quality tBLG. The as-prepared tBLG with strong light–matter interaction was further fabricated into high-performance photodetectors with selectively enhanced photocurrent generation (up to ∼6 times compared with monolayer in our device).

Quantum Entanglement by Orzel part 2.

Entanglement is weird, but also provides a nice, concrete experimental framework that can ground an explanation of how decoherence hides the existence of other branches of the wavefunction.

The world’s first graphene-based electronic paper for use in both hard and flexible displays for electronic devices has been developed in China.

Electronic paper display company Guangzhou OED Technologies announced it has developed the graphene-based e-paper, which it described as being more pliable and having higher light transmittance than existing types of e-paper.

As a result, graphene-based displays would be brighter but also cheaper, as graphene is based on the abundant element carbon, the firm said. Conventional e-paper is made of the rather costly rare metal indium.

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Some researchers believe that machine-learning techniques can revolutionize how materials science is done.

An international team headed by HZB researcher Jaime Sánchez-Barriga has shown how spin-polarised currents can be initiated in a controlled manner within samples of topological insulator material. In addition, they were able to manipulate the orientation of the spins of these currents.

A video of a fully bendable smartphone with a graphene touch display debuts at a Chinese trade show.

A Chinese company just showed off a fully bendable smartphone with a graphene screen during a trade show at Nanping International Conventional Center in Chongqing. Videos of the incredibly flexible phone are making the rounds, and no wonder, as it looks rather impressive.

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China is making bendable smartphones with a graphene display.

When Thomas Edison wanted a filament for his light bulb, he scoured the globe collecting thousands of candidates before settling on bamboo. (It was years before people were able to make tungsten work properly.) That’s our traditional way of getting materials. We picked up stones for axes, chopped wood for housing and carved tools out of bone.

New stretchable material could lead to artificial muscles.

Research Paper: http://bit.ly/1StvU6b