CVD graphene films

State-of-the-art chemical vapor deposition (CVD) methods produce exceptionally high quality graphene film for use as transparent conductors and in other innovative applications. In addition to offering standard samples as shown below, Goodfellow can assist customers with the transfer of graphene film onto their own substrate.

CVD graphene on copper foil

Product Size	Up to 500x600mm2
Film Morphology	Continuous Monolayer (>95%)
Sheet Resistance	-
Mobility	>3500cm2/Vs
Transmittance	>97%
Substrate	Cu foil (35µm thick)
Domain Size	10-20µm

Raman spectrum (after transfer)	50x50mm2 graphene on copper foil
High resolution TEM image	SEM image of Graphene on Cu

Ultra-clean graphene on SiO₂/Si Wafers

Product Size	Up to 90x90mm2
Film Morphology	Continuous Monolayer (>95%)
Sheet Resistance	Av. <250~400Ω/sq
Mobility	>3500cm2/Vs (Max. 17,000cm2/Vs)
Transmittance	>97%
Substrate	SiO2(300nm)/Si wafer (Standard)
Domain Size	10-20µm

10x10mm2 SiO2/Si chips	65x65mm2 SiO2/Si wafer
Ultra-clean transfer by pressure sensitive adhesive films
Electrical properties

Graphene on PET

Product Size	Up to 500x600mm2
Film Morphology	Continuous Monolayer (>95%)
Sheet Resistance	Av. <250~400Ω/sq
Mobility	>3500cm2/Vs
Transmittance	>97%
Substrate	PET (188µm) (Standard)
Domain Size	10-20µm

Sheet resistance uniformity	Optical transmittance
Application of Graphene on PET for Flexible Touch Screen
Mechanical properties of Graphene on PET

Graphene on quartz glass

50x50mm2 graphene on quartz glass
Transfer of graphene onto rigid substrates by hot pressing

N-doped graphene for low sheet resistance applications

Pristine EDA doped DETA doped TETA doped Dirac Voltage(Vg) 1.37±2.27 -126.64±6.06 -166.37±1.78 -192.27±6.49 Carrier concentration(1013) 0.01±0.016 -0.912±0.043 -1.198±0.013 -1.384±0.047 Mobility(h)[cm2/Vs] 6219±1288       Mobility(e)[cm2/Vs] 3809±876 3711±913 3388±531 2817±475 Sheet resistance(Ohm/sq) 925±170 130±12 124±28 98±12

For more information and advice, please discuss your application with our technical staff.