Grat-Film™

Available on various substrates including Copper, SiO2 and PET, in a range of sizes and defining characteristics, the high-quality of our CVD graphene, Grat-Film, is unparalleled. For an in-depth look at our CVD graphene offerings, please explore our product comparison tables below. CVD Graphene on Copper

Product Name	Product Features	Available Sizes (in²)
Gratom-M-Cu	Monolayer percentage > 95% Optical transmittance at 550 nm > 97% (excl. substrate) Average Raman Id/Ig < 5% within domain Average Hall mobility of 2000-4000 cm²/Vs at n=1e12 /cm² Average sheet resistance of 300-600 ohm/sq.	2 x 2 4 x 4 8 x 10 12 x 14
Gratom-R-Cu	Monolayer with occasional multilayer islands Optical transmittance at 550 nm > 95% (excl. substrate) Average sheet resistance of 300-600 ohm/sq.	8 x 10 12 x 14
Gratom-A-Cu	Large-area, as-grown CVD graphene	12 x 60 24 x 60 24 x 100 24 x 300
Gratom-S-Cu	Isolated single graphene domain Large graphene domain (30 – 200 µm) Average Raman Id/Ig < 5% within domain	2 x 2

*Copper thickness 1mil (25 µm) CVD Graphene on SiO₂/Si

Product Name	Product Features	Available Sizes
Gratom-M-Si1	Graphene film coverage > 95% with occasional holes and cracks (< 5 %) Monolayer graphene percentage > 95% # of cracks or holes larger than 3 mm: 0 Average Raman Id/Ig < 5% within domain Average Hall mobility of 2000-4000 cm²/Vs at n=1e12 /cm² Average sheet resistance of 300-600 ohm/sq.	1cm x 1cm 2” or 4” wafer
Gratom-M-Si2	Graphene film coverage > 99% with occasional holes and cracks (< 1 %) Monolayer graphene percentage > 95% # of cracks or holes larger than 3 mm: 0 Average Raman Id/Ig < 5% within domain Average Hall mobility of 2000-4000 cm²/Vs at n=1e12 /cm² Average sheet resistance of 300-600 ohm/sq.	1cm x 1cm 2” or 4” wafer
Gratom-S-Si	Isolated single graphene domain Large graphene domain (30 – 200 µm) Average Raman Id/Ig < 5% within domain	2” wafer

*Wafer spec: thermal grown 285-nm SiO2 on p-type Si substrate (resistivity <0 .005 ohm-cm) CVD Graphene transferred on PET

Product Name	Product Features	Available Sizes (in²)
Gratom-O1	Transmission of graphene at 550 nm: > 95% (excl. substrate) Average sheet resistance: < 800 ohm/sq.	2 x 2 4 x 4 8 x 10
Gratom-O2	Transmission of graphene at 550 nm: > 95% (excl. substrate) Average sheet resistance: < 300 ohm/sq.	2 x 2 4 x 4 8 x 10
Gratom-O3	Transmission of graphene at 550 nm: > 93% (excl. substrate) Average sheet resistance: < 150 ohm/sq.	2 x 2 4 x 4 8 x 10
Gratom-O4	Transmission of graphene at 550 nm: > 90% (excl. substrate) Average sheet resistance: < 70 ohm/sq.	2 x 2 4 x 4 8 x 10
Gratom-O5	Transmission of graphene at 550 nm: > 85% (excl. substrate) Average sheet resistance: < 30 ohm/sq.	2 x 2 4 x 4 8 x 10

*PET thickness 5 mil (125 micron), transmittance 87% @ 550 nm Complete characterizationTransmittance and uniformity (optical image) Crystallinity (Raman spectroscopy) Sheet resistance (four-probe measurement) Doping density and carrier mobility (Hall effect)

Our high-quality graphene products on Copper, SiO2/Si and PET.

DSC_5886_Gratom_M_Substrate_PET

ALL PRODUCTS CAN BE CUSTOM-MADE ON VIRTUALLY ANY SUBSTRATE AND/OR TO YOUR IDEAL PRODUCT SPECIFICATIONS.

Grat-Film™

Grat-Film Documentation