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Graphene News — graphene research

Mapping electrical properties of large-area graphene

Marko Spasenovic

Mapping electrical properties of large-area graphene

Electrical properties of graphene, such as conductivity, can vary across a wafer, which can impede the industrial acceptance of the material. Spatial inhomogeneity of conductivity results in devices from the same batch having different performance, which is incompatible with large scale manufacturing. It is hence important to have tools to...

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Graphene humidity sensors made with a CMOS-compatible process

Marko Spasenovic

Graphene humidity sensors made with a CMOS-compatible process

Researchers at the University of Exeter have used CMOS-compatible processes to create graphene-based humidity sensors with performance on par with commercial ones. The process was demonstrated on an array of sensors produced on a 4” silicon wafer as well as on transparent and flexible PET. The work paves the way...

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Designing graphene-substrate interactions with surface charges

Marko Spasenovic

Designing graphene-substrate interactions with surface charges

The multitude of unprecedented and useful properties of graphene have applications that span across construction, telecommunications, aerospace, energy, sensing, and many other industries. Because of the 2D geometry of graphene, the electrical, optical, chemical and mechanical properties of the material can easily be tuned by modifying the environment, because each...

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Graphene science pushes technology limits in 2018

Marko Spasenovic

Graphene science pushes technology limits in 2018

Graphene research highlights of 2018 included applications in chemical sensors, advanced uses of mechanical properties of graphene, and high frequency uses such as ultrafast graphene transistors and optical communications. Trace detection of harmful chemicals has been a target application of graphene from the onset of applied graphene research. Last year,...

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Graphene on TEM grids enables extreme resolution imaging

Marko Spasenovic

Graphene on TEM grids enables extreme resolution imaging

Transmission electron microscopy (TEM) is a microscopy method in which an electron beam images a specimen by transmission. The specimen is usually an ultrathin section less than 100 nm thick or a suspension on a grid. An image is formed from the interaction of the electrons with the sample as...

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