graphene – Page 10 – TechConnect Briefs

Novel 3D Graphene-Based Materials Prepared by Chemical Vapor Deposition: Process Development and Production Scaling-Up

Polyakova E., Stolyarov D., Zhang J., McCarren C., Graphene Laboratories, US

We have developed methods of CVD processing which are suitable for the industrial production of graphene foam. By optimizing the parameters of CVD growth and choosing the proper nickel support structure, we have tuned the [...]

Observation of Early to Full Covering Stages of Ethylene-based CVD of Graphene

Celebi K., Choi J.W., Cole M.T., Altun A.O., Teo K.B.K., Park H.G., ETH Zürich, CH

Scalable growth of graphene has been demonstrated by chemical vapour deposition (CVD) using copper-based catalyst and ethylene precursor. Here, we present our ethylene-based CVD synthesis method of graphene along with our observation of early and [...]

Characterisation of Graphene in Liquid and Gaseous Environment with Quartz Crystal Microbalance for Applications in Real-Life Energy Storage Devices

Mazzocco R., Robinson B., Kolosov O., Lancaster University, UK

Graphene is a flat monolayer of carbon atoms whose extraordinary properties are to revolutionize the performance of many technological applications. Unfortunately there is very little understanding of how the properties of graphene change in its [...]

Engineered Piezoelectricity in Graphene

Ong M.T., Reed E.J., Stanford University, US

We discover that piezoelectric effects can be engineered into nonpiezoelectric graphene through the selective surface adsorption of atoms. Our calculations show that doping a single sheet of graphene with atoms on one side results in [...]

Flexible Graphene Transistors via Printing Transfer

Chang T.-C., Suh H.-S., Mikael S., Seo J.-H., Nealey P.F., Ma Z., University of Wisconsin-Madison, US

Graphene is an atomic layer material with the characteristics of high mobility, high mechanical strength, transparency and low injection energy barrier with different work function metals. Good transparent electrodes and flexible graphene-based large scale touch [...]

Adhesion and dynamic nanotribology of graphene in polar and non-polar liquid environments studied with ultrasonic force microscopy

Robinson B.J., Kolosov O.V., Lancaster University, UK

We report the characterisation of exfoliated few layer graphene (FLG) flakes using a range of scanning probe techniques. We have examined the nanoscale mechanical and interfacial properties of FLG and its substrate material, SiO2, in [...]

Nano-contacts and Nano-interconnects

Monty G., Underwriters Laboratories, and IEC TC113, US

This oral paper is the result of nearly 3 years of review and analysis of the state-of-the art of nano-contacts and nano-interconnects. An analysis of over 80 technical articles was performed, including interviews with some [...]

Synthesis and Characterization of Graphene Thin Films via Hummer’s Method

Thema F.T., Moloto M.J., Nyangiwe N.N., Khenfouch M., Maaza M., Kotsedi L, Dikio E.D., Vaal University of Technology, ZA

Graphene oxide (GO) and reduced graphene oxide (RGO) were synthesized by Hummer’s method and characterized by X-ray diffraction (XRD), Attenuated total reflectance (ATR), Fourier transform infrared spectroscopy (FT-IR), Ultra-violet visible spectroscopy (UV-vis), Atomic Force Microscopy [...]

Photo-destruction of cancer cells by NIR irradiation and graphene nano-sheets

Abdolahad M., Mohajerzadeh S., Janmaleki M., Akhavan O., University of Tehran, IR

In this paper, we present a novel cancer therapy method based on graphene inclusion in the cell solution and irradiation of the solution by near infrared lasers. The effect of various parameters such as graphene [...]

Detection of Human and Avian Flu Viruses Using Graphenated Infrared Screen

Banerjee A., Chakraborty S., Grebel H., Institution, US

Metallo-dielectric screens (IR screens) have been investigated from the visible to the THz spectral region for astronomy and remote sensing applications. These screens are made of periodic structure aim to invoke surface plasmon polariton (SPP) [...]