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Graphene-enhanced photodetector that operates in the microwave range may be used in displays and wearables

Nov 30, 2016

Researchers at the Daegu Gyeongbuk Institute of Science and Technology (DGIST) in South Korea and the University of Basel in Switzerland have developed a new graphene-based photodetector, that is regarded as the world's first graphene-based microwave photodetector. The sensor can reportedly detect 100,000 times less light energy than any existing graphene photodetector and may be useful in applications like wearable devices and flexible displays.

The teams studied the microwave absorption capabilities of bilayer graphene arranged into p-n junctions. Previous attempts to study the microwave range in photodetection met a considerable obstacle - the microwave on the detector itself had much smaller energy than the surface potential difference caused by the surrounding environment. This included residues on the surface of graphene that were left behind during its fabrication.

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

Nov 16, 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 November 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!

Graphene-silver nanowires hybrid as a possible ITO replacement for touch screens

Sep 18, 2016

Researchers at the University of Sussex in England have found that a hybrid material consisting of silver nanowires that are linked together with graphene could be a strong contender in the battle to replace indium tin oxide as the transparent conductor in touch screen displays.

Graphene silver nanowires image

This material is said to be much cheaper to use since only a small amount of it is necessary in order to attain the properties of ITO. The graphene, according to the team, acts as a linker between the nanowires, which means that the network does not need to be dense. The graphene is deposited onto a sprayed network of nanowires by film deposition.

Exeter's GrapheExeter material to enable meter-sized flexible displays

Jul 31, 2016

Researchers at Exeter have devised a graphene composite (GraphExeter) that is highly conducting, and now they demonstrate the first prototype of the material in an electroluminescent device, showing its feasibility for luminescent textiles and flexible displays.

The high conductivity of GraphExeter can introduce many improvements to flexible displays. Large screens using existing materials fade to a darker region in the middle due to the sheet resistance. This places a practical limitation in the range of square centimetres on how large the screen can be. The extremely low sheet resistance of GraphExeter - less than 8Ω/□ compared with 1000Ω/□ for pristine single layer graphene and 850Ω/□ for the more commonly used PEDOT/PSS – means that screens several square metres in size are feasible.

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

Jul 10, 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!