Project NanoGraM promotes applications of suspended graphene membranes

Graphenea, in collaboration with industrial and academic partners (Infineon Technologies, WITec, RWTH Aachen University and Simune Atomistics), announced the successful completion of project NanoGraM that focused on nano/microelectromechanical (NEMS/MEMS) devices based on graphene. The project focused on three specific device concepts for potential future products: graphene microphones, graphene-membrane pressure sensors and graphene-membrane Hall sensors.

Project NanoGram image

The target markets for these devices include portable electronics (smartphones, laptops), automotive, industrial, and smart homes, among others.

Graphene-Info interviews Ari Pinkas, co-founder of Ora Graphene Audio

Graphene has many potential applications in the audio industry, and many companies have recently released graphene-enhanced audio devices (including headphones, earphones and interconnects). Ari Pinkas, the co-founder of Ora Graphene Audio, was kind enough to answer a few questions we had for him regarding the audio industry, graphene adoption, and the company's own graphene oxide based driver technology.

Q: Hello Ari, thank you for the interview. How long has Ora been involved in graphene research?

While Ora’s graphene technology is based on 2013 research done at McGill University in Montreal, Canada, our scientists have been working with the ‘wonder material’ for over a decade. Before founding the company, Ora’s technical team worked with General Motors on applying graphene oxide to battery anodes for electric vehicles at McGill. Earlier in his career, Ora’s VP Technology, Sergii Tutashkonko, was in Nagoya, Japan, hard at work applying CVD graphene to solar cells.

Versarien enters commercial agreement with MediaDevil to launch products with its Nanene GNPs

Versarien LogoVersarien has announced that it has entered into a commercial agreement with PhoneDevil ("MediaDevil") to launch a new range of earphones and other audio equipment and accessories which will feature Versarien's proprietary Nanene graphene nano platelets and utilize the Nanene brand. In addition, the companies are at an advanced stage of launching a range of mobile phone and tablet device accessories utilizing Nanene, which will also feature the Nanene branding.

The products, which will initially focus on earphones, will be sold on MediaDevil's online platform, in addition to other online retail platforms such as Amazon, along with being supplied to high street retailers and MediaDevil's distribution partners globally. The agreement will see Versarien's Nanene brand feature on all product packaging, for which Versarien will receive a royalty on each product sold.

Chalmers University to develop graphene-based loudspeaker membranes

Chalmers University in Sweden has launched a project, which received Vinnova funding, to design a graphene-based speaker membrane that would be stiff and capable of efficiently dissipating the exceeding heat of the speaker.

A cellulose-graphene composite will be designed, capitalizing on the intrinsic properties of the materials. To demonstrate this, Chalmers plans to use a commercial paper loudspeaker membrane modified with the composite. This way it will be possible to modify any size of paper cones from small 20 mm (tweeters) up to 460 mm (18” woofers) with the same technology, while offering the possibility of decreasing the distortion.

New graphene product targets audio interconnects

The audio field has been experiencing a major graphene boom recently. In addition to various existing headphones and earbuds, a graphene contact enhancer is now on the market. A new-Zealand based company called Mad Scientist Audio is selling its Graphene Contact Enhancer (GCE) that can be used on any metal-to-metal contacts, such as RCA plugs and sockets, loudspeaker leads, fuses, and so on.

Graphene Contact Enhancer product image

The product is said to 'fill in the gaps' and give a profound improvement in system performance when applied to the important contacts in a system (e.g interconnects, speaker leads, power cords, fuses, tube pins, etc). It reportedly does not suffer from the problems that silver-based products do, namely oxidation and ability to cause short circuits.

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