Graphene may enable sensitive, fast and efficient photodetectors for future terahertz cameras

Scientists from ICFO have developed a novel graphene-enabled photodetector that operates at room temperature, and is sad to be highly sensitive, very fast, with a wide dynamic range and covers a broad range of THz frequencies.

Graphene may enable sensitive, fast and efficient photodetectors for future terahertz camerasSchematic representation of the central part of the graphene-based THz photodetector device

Detecting terahertz (THz) light is extremely useful for two main reasons: First, THz technology is becoming a key element in applications regarding security (such as airport scanners), wireless data communication, and quality control but current THz detectors have shown strong limitations in terms of simultaneously meeting the requirements for sensitivity, speed, spectral range, being able to operate at room temperature, etc. Second, it is a very safe type of radiation due to its low-energy photons, with more than a hundred times less energy than that of photons in the visible light range.

Purdue team uses graphene foams to power spacecraft

Researchers at Purdue University’s Maurice J. Zucrow Laboratories are developing a new propellant formulation method that will use graphene foams to power spacecraft. The research is reportedly showing success at increasing burn rate of solid propellants that are used to fuel rockets and spacecraft.

“Our propulsion and physics researchers came together to focus on a material that has not previously been used in rocket propulsion, and it is demonstrating strong results,” said Li Qiao, an associate professor of aeronautics and astronautics in Purdue’s College of Engineering.

MediaDevil launches graphene-enhanced earphones

MediaDevil, a UK-based maker of various phone, laptop and tablet accessories, is selling the Artisanphonics CB-01 Earphones - Noise-isolating Premium Wood Earphones with Nanene Graphene-Enhanced Audio.

MediaDevil Nanene-enhanced earphones image

These earphones, enhanced with Versarien's Nanene material, reportedly sport an earphone diaphragm that is thinner and more flexible than traditional materials can allow. MediaDevil says that independent testing conducted by a leading British premium audio company found that, remarkably, Nanene enhances both the high-end (treble) and the low-end (bass) of the audio frequency wave.

UIC team uses graphene to prevent Li-ion battery fires

Lithium batteries' tendency to occasionally catch on fire (an occurrence known as “thermal runaway”) is well documented, and may occur when the batteries overheat or cycle rapidly. Researchers from the University of Illinois at Chicago College of Engineering report that graphene may help with this disturbing issue.

UIC team uses graphene to prevent Li-ion battery fires imageLithium cobalt oxide particles coated in graphene. Image by UIC

Conditions such as rapid cycling or charging and discharging, and high temperatures in the battery can cause the cathode inside the battery — which in the case of most lithium batteries is a lithium-containing oxide, usually lithium cobalt oxide — to decompose and release oxygen. If the oxygen combines with other flammable products given off through decomposition of the electrolyte under high enough heat, spontaneous combustion can occur.

Graphene-Info's Batteries, Graphene Oxide, Lighting, Displays and Graphene Investments Market Reports updated to April 2019

Today we published new versions 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 April 2019.

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!

AMD secures DASA funding for graphene-based signature management applications in civilian and military fields

Advanced Material Development logoAdvanced Material Development (AMD) recently announced that it has successfully applied for funding via the UK Defense and Security Accelerator (DASA), and will be receiving funds of around £83,000 (about $108,400 USD).

The program will be an early stage nine month R&D project using AMD's proprietary nanomaterial liquid processing technology for signature management applications in both civilian and military fields. The program is part of the Open Call for Emerging Innovations - the AMD contract will be one of a series of proposals funded by DASA.

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