GRA-CU-6
Monolayer graphene on copper foil, 6" × 6"
Single flat sheet of carbon in a hexagonal lattice, grown by CVD onto 25 μm copper foil. In stock.
CVD monolayer materials · Made in San Diego, USA
Large-area single layer graphene and hexagonal boron nitride
Monolayer films up to 8 inches, grown by chemical vapor deposition and transferred to the substrate you build on. Stock sizes ship from the shelf; every unit carries a specification sheet measured from its own batch.
8"
Max wafer diameter
Class 100
Cleanroom fab and packaging
≥95%
Coverage guaranteed, typically 100%
Per batch
Raman and optical data
Stock materials
In stock, priced, and shipping 1–3 days from payment. Free shipping within the US.
HBN-CU-6
Monolayer hBN on copper foil, 6" × 6"
White graphene: the single-atom-thick insulator complement to graphene, on 25 μm copper foil. In stock.
Relocation and process requalification · 2026
Rebuilt, end to end
A new cleanroom. An updated production line. New quality protocols. Every batch ships with its own data set.
01
The room
A new San Diego facility built around the growth and transfer line rather than inherited from it. Class 100 cleanroom, laid out so the material never leaves controlled air between growth and pack-out.
02
The line
Production equipment updated and requalified end to end, from growth through transfer to final inspection. Ultra-fast cooldowns give cleaner films, with lower defect density and lower adlayer counts.
03
The protocols
New and updated QC protocols, applied to every batch rather than sampled across a lot. Daily static-vacuum monitoring. Raman calibrated against a standard.
04
The substrate
Oxygen-free copper foil rolled for Grolltex by a German mill to our own specification: OFE-Cu58 / ASTM C101, ultra-smooth, with a mirror surface finish and consistent character roll to roll.
What now ships with every batch
Optical
>97% T, 100% coverage
Raman
D/G, 2D FWHM, peak table
Adlayer
count, size, area fraction
Wrinkle
density and orientation
Certificate
serialised, txt + csv
Made to order
Sizes, substrates and stacks quoted per configuration.
GRA-XFER
Graphene transferred to your substrate
Monolayer graphene transferred onto Si/SiO₂, quartz, or the wafer you send us, up to 8 inches.
Request pricing
Details — Graphene transferred to your substrate
HBN-XFER
hBN transferred to your substrate
Monolayer hBN transferred onto your device substrate as a gate dielectric or encapsulation layer.
Request pricing
Details — hBN transferred to your substrate
GRA-HBN
Enhanced performance graphene: graphene on hBN
A layer of hBN beneath graphene. The close lattice match raises electron mobility for sensing and transistors.
Request pricing
Details — Enhanced performance graphene: graphene on hBN
Our customers
Supplying researchers worldwide since 2017 — top universities, Fortune 500 companies and national laboratories.
More than 250 citations on Google Scholar report work using Grolltex materials.
Why buy from Grolltex
01
Made in the USA
Grown, transferred and packaged in San Diego, California — not resold from an overseas supplier.
02
A serialised Certificate of Analysis
Optical coverage, a Raman peak table, adlayer and wrinkle statistics — measured on your batch, not a representative lot.
03
Transfer to your substrate
Send us your wafer and we transfer graphene, hBN, or a stack of both onto it, up to 8 inches.
04
Priced for research budgets
Stock sizes are listed and buyable online, with purchase orders accepted from institutions.
Need a size, substrate or stack we don't stock?
Send your wafer and we transfer monolayer graphene, hBN, or a graphene-on-hBN heterostructure onto it.