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Grolltex — graphene rolling technologies
Monolayer hBN on copper foil, 6" × 6"

Monolayer hBN on copper foil, 6″ × 6″

$890.00

White graphene: the single-atom-thick insulator complement to graphene, on 25 μm copper foil. In stock.

Ships from San Diego 1–3 days from payment. Purchase orders accepted from institutions.

SKU: HBN-CU-6 Category:

Specifications

Specification Value
Material Monolayer hexagonal boron nitride
Layers 1
Sheet size 6" × 6"
Substrate Oxygen-free copper foil, 25 μm
Copper spec OFE-Cu58 / ASTM C101
Surface finish Ultra-smooth, mirror
Coverage ≥95% guaranteed, typically 100%
Band gap ~5.9 eV
Fabrication Class 100 cleanroom
Packaging Double vacuum wrapped, N₂

Batch characterization

Representative data. The unit you receive ships with measurements from its own batch.

Raman spectrum of monolayer hBN — E₂g peak at ~1370 cm⁻¹. Counts against Raman shift (cm⁻¹).
Raman spectrum of monolayer hBN — E₂g peak at ~1370 cm⁻¹. Counts against Raman shift (cm⁻¹).
Optical transparency
Per batch

Single layer on transferred substrate

Raman E₂g peak
Per batch

Monolayer hBN has a very small Raman cross-section, so Raman signals of this material are of very low intensity (compared to that of graphene, for example, or exfoliated multi-layer hBN)

Optical micrograph — hBN, 50×, 50 μm scale
Optical micrograph — hBN, 50×, 50 μm scale
Optical micrograph — hBN edge, 100×, 25 μm scale
Optical micrograph — hBN edge, 100×, 25 μm scale
TEM — hBN lattice, 2.5 nm scale
TEM — hBN lattice, 2.5 nm scale

Transfer and handling

  1. Open the outer cleanroom bag in a clean environment; leave the inner vacuum seal intact until transfer.
  2. Handle the foil by its edges with clean tweezers. Do not crease — a fold breaks the monolayer.
  3. For wet transfer, float the coated foil on etchant, then rinse in DI water before lifting onto your substrate.
  4. Dry under nitrogen and bake to remove residual water before device processing.

Packaging and shelf life

Each sheet is vacuum sealed in a clean, inert nitrogen environment. Secondary packaging under positive nitrogen atmosphere, in a moisture-proof, light-proof, static-proof cleanroom bag, preserves the material between uses.

Store sealed, at room temperature, away from light. Open in a clean environment immediately before transfer.

Citing this material

Monolayer CVD hexagonal boron nitride on copper foil (HBN-CU-6), Grolltex, Inc., San Diego, CA. Cite the batch number printed on your specification sheet.

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