All of our products at Grolltex are fabricated and packaged in a Class 1000 cleanroom. Adhering to our strict procedures and processes allow us to achieve high-yield, high-quality CVD graphene and hBN production, the result of which is exceptional quality at an affordable price. Every hBN and/or graphene-coated custom substrate comes with optical images of the substrate when possible.
Graphene Coverage: 100% with sporadic adlayers (see optical image above)
FET mobility*: >2700 cm2/(V∙s)
Sheet resistance*: 430 ± 50 Ω/sq
Grain size: >4 μm
Raman D/G ratio*: Indistinguishable to 0.03
Substrates are customer provided and can vary widely. The specific hBN or graphene adhesion characteristics cannot be known for all customer substrates; as such, transfer onto custom substrates is conducted on a best-effort basis and results may vary. Please contact us to discuss the properties of the substrate in question. GrollTex will not share any custom substrate information (data, images, designs, etc.) with any entity other than the provider of said substrate(s).
“*The indicated product metrics are generic to our process. Each graphene unit sold is accompanied by a specification sheet unique to the S/N and contains batch-specific metrics. This eliminates guesswork and ensures that you only get the best, well-characterized, and QA-passed graphene.
Data files for mobility and Raman measurements are available upon request. Please send an email including your name, institution, and product serial number to email@example.com and indicate which file(s) you would like.
Do you need assistance with Raman measurements on your custom/modified hBN sample? We can help! Please inquire at firstname.lastname@example.org or
call (858) 368-9065 for details.
Do you have more specific questions about our products? Do you have inquiries about custom or bulk orders? Do you need help with Raman measurements of graphene? Please feel free to send us an email at email@example.com, or call us at (858) 368-9065.