MATERIALS CATALOG

Graphene on Silicon Nitride TEM Grids (2.5µm holes)

Graphene on Silicon Nitride TEM Grids (2.5µm holes)

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Product Detail

Characteristics
1. Four thicknesses of CVD graphene:
Available in either 1, 2, 3-5 or 6-8 layers
2. TEM Substrate: 
200µm thick 3.0mm hexagonal silicon substrate with a 0.5x0.5mm aperture and 200nm thick silicon nitride membrane with approximately 6,400 2.5µm holes
 
 
 
3. Graphene coverage of the TEM grid is > 75%. (The graphene coverage is typically >75% of the whole 3.05mm diameter silicon TEM grid which encompasses the holey silicon nitride membrane.)
 
Appearance
Solid hexagonal disk with a greenish hue. The graphene film appears as a near-transparent to light-grey film on the surface of the microporous Silicon Nitride membrane.
 
Type Thickness of Graphene Transparency of Graphene TEM Grid/AFM Substrate Support Film
1 Layer  ~0.35nm  ~96.4% 2.5μm Hole Silicon Nitride Silicon Nitride
2 Layers  ~0.7nm  ~92.7% 2.5μm Hole Silicon Nitride Silicon Nitride
3-5 Layers  1.0-1.7nm  ~85.8-90.4% 2.5μm Hole Silicon Nitride Silicon Nitride
6-8 Layers  2.1-2.8nm  ~78.5-83.2% 2.5μm Hole Silicon Nitride Silicon Nitride
 
 
 
Left: SAED  Right: FFT of HR-TEM Image
 
HR-TEM image