Graphene and MoS2 used by Berkeley Lab to make a transistor

Researchers at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have developed a way to assemble transistors based on graphene and molybdenum disulfide.

The method etches narrow channels in conducting graphene laid down on a silicon-dioxide substrate. These channels are then filled with the 2D MoS2. The method allows graphene to inject electrons into the conduction band of the MoS2 channel with improved performance compared with simply using metal contacts to inject electrons, according to the researchers.

Read the full story Posted: Jul 12,2016

Das-Nano develops innovative full-area characterization tool for graphene, thin-films, and other 2D materials

The Spain-based das-Nano has developed a novel characterization tool called Onyx. It is said to be the first system in the market designed for full-area characterization of graphene, thin-films, and other 2D materials.

Onyx implements Terahertz technology, co-developed with the Fraunhofer-IPM, to realize the characterization of the sample in a non-contact and non-destructive manner over multiple types of substrates and samples. Compared to other large-area methods, such as the four-probe methods, Onyx is capable to measure the spatial distribution of several properties of the sample (e.g. conductance). Spatial resolution in the order of few hundreds of microns enables the fast characterization of large areas of samples, as opposed to microscopic methods such as Raman, SEM, and TEM.

Read the full story Posted: Jul 11,2016

Graphene-Info's Batteries, Lighting, Displays and Graphene Investments Market Reports updated to July 2016

Today we published a new version of all our graphene market reports. Graphene-Info provides comprehensive niche graphene market reports, and our reports cover everything you need to know about these niche markets. The reports are now updated to July 2016.

Graphene batteries market report 3D cover

The Graphene Batteries Market Report:

  • The advantages using graphene batteries
  • The different ways graphene can be used in batteries
  • Various types of graphene materials
  • What's on the market today
  • Detailed specifications of some graphene-enhanced anode material
  • Personal contact details into most graphene developers

The report package provides a good introduction to the graphene battery - present and future. It includes a list of all graphene companies involved with batteries and gives detailed specifications of some graphene-enhanced anode materials and contact details into most graphene developers. Read more here!

Read the full story Posted: Jul 10,2016

Graphene to regenerate 3D tissues and organs for implantation into the human body

A team of researchers from Boise State University have conducted a study that focuses on demonstrating the suitability of graphene foam (3D version of graphene) as a scaffold for growing functional muscle tissue. In the future, researchers hope that the unique properties of graphene and graphene foam can be used to regenerate 3-dimensional tissues and organs for implantation into the human body.

According to the team, the study demonstrated that extra cellular matrix proteins on graphene foam can enhance the differentiation of pluripotent C2C12 myoblasts,and in addition it was possible to verify muscle functionality by using the graphene foam itself as an electrode to stimulate the tissue.

Read the full story Posted: Jul 10,2016

Graphene inhalation tests show low toxicity

A team of Korean researchers recently conducted an inhalation toxicology study of graphene, as much questions have been raised on graphene's potential health and safety risks.

The study was done using a nose-only inhalation system for 28 days (6 h/day and 5 days/week) with male Sprague-Dawley rats that were then allowed to recover for 1-, 28-, and 90-day post-exposure period. Animals were separated into 4 groups (control, low, moderate, and high) with 15 male rats (5 rats per time point) in each group.

Read the full story Posted: Jul 10,2016

Dongxu unveils an impressive graphene-enhanced battery

Dongxu Optoelectronic Technology recently unveiled a graphene battery in Beijing, called G-King. The report out of China does not reveal how close the G-King battery is to mass production. It might be close, considering the stage show the company pulled off - and if so, it may be the world's first graphene battery.

The demonstrated graphene battery has a capacity of 4,800mAh, which is a typical capacity of laptop battery. The company showed the G-King's super-fast charging time. It only takes 13 to 15 minutes compared to several hours a conventional Lithium-Ion battery needs. That's 10 to 20 times faster. Dongxu Optoelectronic Technology says that the G-King graphene battery supports 3,500 charge and discharge cycles - around 7 times higher than Li-Ion batteries.

Read the full story Posted: Jul 10,2016

Graphene-based device to increase the speed and efficiency of wireless communication systems

Researchers from EPFL have reported the design of a tunable, graphene-based device that could significantly increase the speed and efficiency of wireless communication systems. Their system works at very high frequencies and is said to be delivering unprecedented results.

Current portable wireless systems usually come equipped with reconfigurable circuits that can adjust the antenna to transmit and receive data in the various frequency bands. Unfortunately, currently available technologies like MEMS and MOS that use silicon or metal do not work well at high frequencies - where data can travel much faster. For this end, the EPFL researchers have come up with a tunable graphene-based solution that enables circuits to operate at both low and high frequencies with unprecedented efficiency.

Read the full story Posted: Jul 10,2016

Graphene hydraulic press to create new 2D materials

Researchers at Manchester University have shown that a graphene hydraulic ‘nano-press’ is capable of creating new two-dimensional materials by exerting extreme pressure on compounds sealed between layers of graphene. This new use of graphene could prove to be a novel way of creating versatile 2D materials which have unique properties and benefits for a wide range of applications.

The graphene nano-press is made possible due to graphene's unique properties. As is stronger than diamond, the extreme amount of pressure can be exerted on trapped molecules without breaking the graphene layers. The two stacked layers also create a self-sealing envelope around the trapped molecules to contain them. The researchers say that the molecules that are trapped between two layers of graphene experience pressures equivalent of 10,000 times the air pressure in a bicycle tyre; This acts as a nano scale pressure cooker which works at room temperature.

Read the full story Posted: Jul 09,2016

Will We See You at the Graphene World Summit?

The Graphene World Summit, taking place September 19-20 at the Paradise Point Resort & Spa in San Diego, CA, promises to provide insights into the latest applications and investment strategies that further drive the broader use of graphene. Graphene 2016 brings together leading material developers, producers, end-users, researchers and investment experts to amplify and clarify the paths to further drive commercialized use of this novel material.

The two-day agenda is filled with discussions and presentations that will introduce you to all the key players who are working to grow the graphene market place. We are pleased to announce the following presentations:

  • Study of Capacitor based on Graphene for Optical Application
  • Enabling Graphene-Turning Randomly Distributed 2D Material into Functional Devices
  • OLEDs on Graphene Electrode
  • Advances in Graphene Composite & 3D Printing including Light Emitting Materials
  • And much more

Read the full story Posted: Jul 09,2016