Graphos

G-GOSiO

Large graphene oxide (GO) sheets supported on Si oxide.

Graphene oxide (GO) sheets produced through chemical graphite exfoliation, supported on silicon oxide substrate, 300 nm. Thanks to the large dimension of each single layer of GO, up to 150 µm, this product can meet the highest researchers’ requirements.

GO platelets can be easily identified with an optical microscope when deposited on silicon oxide substrate, similarly to mechanically exfoliated graphene.

Though, their high and uniform density on the substrate (and the absence of large agglomerates and debris, typical of mechanically exfoliated graphene) make G-GOSiO the perfect substrate for quick and efficient research applications.

Big sheets oxidize graphene

Large sheets graphene oxide

Reduced big sheets oxidize graphene

Large sheets graphene oxide after reduction

GO on SiO 300 nm Thermically reduced GO on SiO 300 nm

Optical microscope images 561 x 467 µm

Sample reduction of GO can be done either chemically or by thermal treatment.

AFM single layer folded single layer AFM graphene oxide single layer height profile
AFM image of GO on SiO. Tickness profile of single layer GO.

Different substrates available to satisfy specific technical requirements.

Main features:

Value Method Note
Platelets thickness: 1±0.3 nm Determined by AFM
Platelets with average lateral dimension >70 µm: >30/sample Determined by optical microscopy Number of sheets found on an area of~3×4 mm, which is the usable central area of most samples.
Platelets with average lateral dimension >100 µm: ~5/sample Determined by optical microscopy Number of sheets found on an area of~3×4 mm, which is the usable central area of most samples.
Folded single sheets: ~15 % Only sheets are considered where the folded area is larger than the unfolded area
C/O atomic ratio: 1,2

Double layer sheets are rarely detected.

AFM grafene oxide single layer folded
AFM image of folded layers GO on SiO.

Technical data sheet: GRAPHOS G-GOSiO

Price for 1 sample = 100 €.

PI:02741921205