Graphene videos - Page 8

Dr. Elena Polyakova from Graphene 3D Lab was interviewed in IDTechEx Graphene Live! and discussed graphene composites, rivaling 2D materials and more: 

Claudio Marinelli, business development manager of Applied Graphene Materials, gave an interview at IDTechEx Graphene Live! where he talked about his company's process and products, his projections on the future of the graphene industry and more. 

The recent IDTechEx Graphene Live! event featured a unique graphene-enhanced guitar, made of carbon fiber with epoxy encapsulation. The guitar is presented by Perpetuus' Ian walters, who tells of a failed first attempt at making it. The second time around, the guitar was successfully made and proves to be light, strong and with excellent sound. The guitar was auctioned off with proceeds going to charity.

The University of Manchester's Graphene Department created a series of new videos that show the uses of Graphene, with an emphasis placed on graphene membranes. This is the first of the series, with more to come.

Researchers from Seoul National University managed to grow gallium nitride (GaN) micro-rods on a graphene sheet. This enabled them to create transferable LEDs and may enable the fabrication of bendable and stretchable devices.

The researchers say that graphene is the "perfect substrate" because it provides the desired flexibility with excellent mechanical strength, and it's also chemically and physically stable at temperatures in excess of 1,000 degrees Celsius. GaN combined with graphene substrates also shows excellent tolerance for mechanical deformation.

Researchers from TU Delft developed very small graphene membranes (or "drums") that can be used to detect extremely small changes in position and forces. These tiny drums have find applications as sensors, and may also be used as memory chips in a quantum computer.

The researchers refer to these membranes as tiny drums, and they actually demonstrated how you can use microwave-frequency light to play on those drums. The membranes acts as a mirror in an optomechanical cavity. The microwave photos were shot on the drums which acts like a mirror. The researchers were able to sense minute changes in the position of the graphene sheet - even a change of 17 femtometers, nearly 1/10000th of the diameter of an atom.

Researchers from China's Beijing Institute of Technology developed graphene-based springs that can function as actuators. Those springs are very light and offer good thermal and electrical conductivity. They are also easy to functionalize and work in harsh conditions.

Most springs today are metal. There has been attempts to create carbon-based springs which are lightweight compared to the metal springs - but those exhibit poor elasticity. But these new graphene springs are very elastic - they can be elongated to 480% of their original size and maintain stable elasticity even after being stretched 100,000 times to 300% of their size.