Graphene Oxide
Cheaptubes.com is please to announce that we can now supply Single Layered Graphene Oxide. Our SLGO uses no metal catalysts in it's production, is Di Water or DMF Soluble so it can be easily dispersed into solvents for further processing without the use of surfactants, it is truly solution processable The Average thickness is 0.7-1.2nm and it is truly Single Layer Flakes. The conductivity & structure of graphite can be restored to our SLGO by reduction & annealing processes.
We can also provide Single Layered Graphene Oxide dispersions In Di Water or DMF that use no surfactants to stabilize them.
Reduced Single Layer Graphene coatings are now available with the specifications below.
1. Single Layer Graphene film on glass/wafer (thickness 5-20 nm, ~ 3-5 cm2, conductivity 10(3) – 10(5) Sm-1, sheet resistance 10(1)-10(4) Ω/sq)
2. Single Layer Flexible Graphene film on polyimide flexible substrate (thickness 5-20 nm, ~ 3-5 cm2, conductivity 10(2) – 10(4) Sm-1, sheet resistance 10(2)-10(5) Ω/sq)
Single Layer Graphene Oxide Prices
The Difference between our Single Layer Graphene Oxide & Graphene Nano Platelets
Single Layer Graphene Oxide Specifications
Single Layer Graphene Coating Specifications
Single Layer Graphene Oxide Images
Single Layer Graphene Oxide Dispersions
Single Layer Graphene Oxide Applications
Graphene is a member of the class of 2-dimensional materials discovered by Professor Andre Geim's research group at the University of Manchester. It consists of a hexagonal array of sp2-bonded carbon atoms, just like those found in bulk graphite. 2D materials display very interesting properties and they are fundamentally different from the 3D materials we encounter everyday. The discovery of 2D materials like graphene means that scientists now have access to materials of all dimensionalities.
Graphene is quite different from most conventional three-dimensional materials. Intrinsic graphene is a semi-metal or zero-gap semiconductor. The E-k relation is linear for low energies near the six corners of the two-dimensional hexagonal Billouin zone, leading to zero effective mass for electrons and holes
By oxidising, chemically processing graphene, and then floating them in water, the graphene flakes form a single sheet with very powerful carbon to carbon bonds.
The Difference between our Solution Processable Single Layer Graphene Oxide & Graphene Nano Platelets
CheapTubes.com is often asked questions regarding the differences between our Single Layered Graphene Oxide and Graphene Nano Platelets which typically have lower costs. We decided put out this release to assist Graphene consumers so they can clearly understand the differences between these equally impressive products and thus make informed decisions when evaluating them.
The Solution Processable Single Layer Graphene Oxide available from CheapTubes.com and the Graphene Nano Platelets (GNPs) are indeed very different products. Some products are inherently better suited for specific applications even though at first glance competing products may look very similar. As the name indicates, GNPs are multilayered and typically have a thickness ranging from 5-10 nm and many have ~ 8-12 layers on average. The thickness and size of the GNPs can be very different in the same sample. GNPs typically are not soluble in water, require the use of surfactants to effectively disperse them, and cannot be easily dispersed in water or other solvents. In that respect they are very similar to CNTs. As a result, many types of GNPs are not solution processable which is a mandatory property for many advanced applications, particularly for micro-nano electronic device, transparent conductive coatings, and fuel cell applications. The GNPs edges normally have other edge groups attached. In contrast, our Single Layered Graphene Oxide product is solution processable and completely Single-Layered Graphene Oxide with an average thickness of 0.7 to 1.2nm as measured by AFM. The properties of Single-Layered Graphene Oxide and Multi-Layered Graphene Oxide are very different. This includes their much desired mechanical & electrical properties. To illustrate this, we point to the well known differences between SWNTs & MWNTs, with the exception that our Single Layer Graphene Oxide is completely pure without any catalyst metal and it is very easy to disperse for many applications. The difficulty experienced when dispersing the GNPs is the same as with CNTs. Our Single Layer Graphene does not have this problem at all. For any given application, in order to obtain the best properties with minimum material usage requires that the material have the best dispersion properties (both at the single-layered and single piece level) as well as the best properties for each piece. Our Single-Layered Graphene Oxide addresses all of these concerns and can be reduced to a neat Single Layer Graphene as well. Our Single Layered Graphene Oxide is available now and our capacity is increasing as well. Please do not hesitate to contact us with any questions.
Single Layer Graphene Oxide Specifications | |
Single-Layer Graphene Oxide Materials | |
Size: | ~300-800nm X&Y dimensions |
Thickness: | 0.7-1.2 nm by AFM |
| Solubility | DI Water, NMP, or DMF
|
Single Layer Graphene Oxide Images
Single Layer Graphene Coating Specifications
Reduced Single Layer Graphene coatings are now available with the specifications below.
1. Single Layer Graphene film on glass/wafer (thickness 5-30 nm, ~ 3-5 cm2, conductivity 10(4) – 10(5) Sm-1, sheet resistance 10(1)-10(3) Ω/sq)
2. Single Layer Flexible Graphene film on organic flexible substrate (thickness 5-30 nm, ~ 3-5 cm2, conductivity 10(3) – 10(4) Sm-1, sheet resistance 10(2)-10(4) Ω/sq)
Single Layer Graphene Oxide Prices
Quantity | Prices |
| 50 mgs | $125 |
| <1 gram | $250 per 100 mgs |
| 1-9 grams | $1,500 per gram |
| 10-99 grams | $1,350 per gram |
| >100 grams | $500 per gram |
| >200 grams | $450 per gram |
| >500 grams | $400 per gram |
| >1000 grams | $350 per gram |
Single Layer Graphene Oxide Dispersions
Cheap Tubes can also supply Single Layer Graphene Dispersions in 2mg/ml concentrations. Please inquire with us to find out pricing. We can provide our Single Layer Graphene Oxide Dispersions in Water or DMF solvents without the use of surfactants. Single Layer Graphene Oxide inks are also available, please inquire with us.
Single Layer Graphene Oxide Applications
Solar Energy
Graphene Semiconductor Chips
Conductive Graphene Films
Graphene Communications Chips
Graphene Computer Memory
Graphene Sheets
Transparent Conductive Coatings
Many others yet to be discovered
Do you have Published papers on Graphene Research that you would like us to put on our site to offer to our visitors? If so, please email us at mike@cheaptubes.com or sales@cheaptubes.com to send your Graphene Research Papers to us for review. If they are of compelling, we will publish your Graphene Research papers.
