7 mm x 7 mm plate

 500.00 ( 615.00 inc. VAT)

Graphene on silicon carbide substrate plate with dimensions of 7 mm by 7 mm by 330 µm

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SKU: 7x7 Category:

Graphene on silicon carbide substrate plate with dimensions of 7 mm by 7 mm by 330 µm

Graphene is present on square 7 mm by 7 mm SiC plates. The tolerance of a plate’s dimensions is ±10%.

If specific number of layers is required please contact us.

The price does not include shipping, handling and packing. More information is available in our Shipping & Delivery Policy.

Properties of graphene (max tolerance ±15%):

  • Number of layers: 1-5
  • Layers stacking: ABC
  • Phase: monocrystal on the whole sample
  • Method of production: partly reversible graphitisation of SiC (0001) under silicon atoms’ flux
  • Electrical properties: doped, type n, electric charge neutral point (Dirac point) around 0.35 eV below Fermi level
  • Average surface roughness (RMS): 0.36-0.81 nm
  • Average surface step’s height: 0.7-1.4 nm
  • Average surface terrace’s width: 260-344 nm

Properties of a substrate:

  • Material: silicon carbide (SiC)
  • Phase: monocrystal
  • Thickness: 330 µm (±25 µm)
  • Surface orientation: <0001> (±0.5 °)
  • The concentration of micropipe-type defects (MPD): 15 cm-2
  • Resistivity: 1E5 Ω cm
  • Band gap: 3.23 eV
  • TTV / Bow / Warp: 15 µm / 25 µm / 25 µm
  • Thermal conductivity along a axis in 298 K: 4.9 W/cm K
  • Thermal conductivity along c axis in 298 K: 3.9 W/cm K

Characterisation:

Results of characterisation techniques such as ARPES, XPS, spectrophotometry, Raman spectrometry, and AFM are available upon request.

Weight 0.1 g
Dimensions 1 × 1 × 0.1 cm

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