CVDGraphene™ Products

Download CVDGraphene™ TEM grids for High Contrast TEM imaging PDF

Download CVDGraphene™ flyer from the Intersolar 2010 Show PDF

All our CVDGraphene™ products are sold through Graphene Supermarket.

The recent discovery of graphene, a single planar sheet of sp²-bonded carbon atoms opened a new era in materials engineering.  Strong bonding of carbon atoms in graphene makes it extremely chemically inert and stable.  While conventional materials collapse or disintegrate if their thickness is reduced below 25-100 nm, graphene films are stable and extremely robust even at monoatomic thickness.  The graphene is the subject of intense research and development because it combines outstanding mechanical, structural, electronic, and other material properties.  These properties make it a good candidate for numerous applications such as transistors, solar cells, supercapacitors, composite materials, transparent and flexible electronics, TEM and NEMS, optoelectronics, and chemical and biosensors.

Repeatable and reliable production of nanomaterials is a well-recognized technological challenge.  An effective route to graphene production is to grow large-area graphene sheets on top of other substrate materials or thin films using a chemical vapor deposition (CVD) growth method utilizing decomposition of hydrocarbons on transition metal surfaces at elevated temperatures. Graphene films with thickness of 1-25 layers can be produced by this technique.  In collaboration with Graphene Laboratories Inc, our company is the first to introduce continuous graphene coatings on 4” wafers for sale.

Image 5 on right: CVDGraphene™ film grown on a 4" Silicon Wafer on Ni film on SiO2/Si wafer.

Image 6: An optical microscope image of CVDGraphene™ on Ni film on SiO2/Si wafer.  The darker areas represent areas having a thicker graphene film (higher optical absorption)

CVDGraphene™ is fully combatable with a standard set of semiconductor equipments and can be used as a starting material for development of various graphene-based products.  Furthermore, CVDGraphene™ can be transferred onto virtually any substrate by chemical etching of supporting metal and thus making it removable from the growth substrate.  This greatly expands the possible CVDGraphene™ application range.

CVDGraphene™ grids for High-Contrast (TEM) Transmission Electron Microscopy

As one of the first graphene-enabled commercial products, we are pleased to offer CVDGraphene™ grids for Transmission Electron Microscopy (TEM).  A TEM image is formed as a beam of electrons is transmitted through a specimen, interacting with the sample mounted on a thin support film, often also called membrane.  Due to its angstrom to nanometer thickness, high conductivity and outstanding mechanical stability, CVDGraphene™ is the optimum material for TEM support membranes.  It also minimizes electron scattering which results in greatly improved image contrast and spatial resolution.  In addition, electrically conductive CVDGraphene™ grids are not prone to local charging, a common and severe problem in TEM imaging.

CVDGraphene™ TEM grids are optimum for the following TEM imaging applications:

• Imaging of nanoparticles, proteins, viruses, DNA
•  Medical Diagnostics
• Single Cell Studies
• 3D protein imaging
• Drug design
• Imaging of Biological Markers and bio-inspired nanomaterials
• Cryo-transmission electron microscopy, Electron Cryomicroscopy
• Single Particle Analysis (SPA)
• Materials science and Semiconductor Research
• Electron Energy Loss Spectroscopy (EELS)

Image 1: CVDGraphene™ film on copper support: 100µm scale (available for sale by Graphene Laboratories, Inc)

Image 2: CVDGraphene™ film on copper support: 10µm scale (available for sale by Graphene Supermarket)

Image 3: High resolution TEM image of a 15 nm diameter Au nanoparticle acquired on CVDGraphene™ TEM grid (available for sale by Graphene Supermarket)

Image 4: (Courtesy of Prof. Bolotin and Prof. Jerome, Vanderbilt University): Ultrahigh contrast TEM image of stained High Density Lipoproteins (HDL) acquired on CVDGraphene™ TEM grid. Courtesy of Prof. Bolotin and Prof. Jerome, Vanderbilt University, Nashville, TN. CVDGraphene™ TEM grids are supplied by Graphene Laboratories, Inc.

Image 7: Annealed Cu foil with large Cu grains with single layer CVDGraphene™ film coverage (available for sale by Graphene Supermarket)

Image 8: Annealed Cu foil with large Cu grains with single layer CVDGraphene™ film coverage. Wrinkles show single layer Graphene Film. (available for sale by Graphene Supermarket)

Image 9: Raman spectra  from single layer CVDGraphene™ film  transferred onto a Silicon Dioxide film from a Graphene layer grown on a Copper Foil.

How you can find out more information about our CVDGraphene™ products:

All our CVDGraphene™ products are sold through Graphene Supermarket. Please check out these websites for additional technical information.

The following logos are trademarks of CVD Equipment Corporation and are used for labeling CVDGraphene™ related products.