Centro de Investigación Biomédica en Red, Bioingeniería, Biomateriales y Nanomedicina

The Biomedical Networking Research Center of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN) is one of the 11 thematic areas of CIBER. CIBER groups some of the main Spanish research groups (more than 400) in biomedicine, located in more than 100 institutions distributed around Spain.

Av. Monforte de Lemos, 3-5. Pabellón 11. Planta 0 28029 Madrid

Procedure for the exfoliation and transfer of graphene from a doped silicon carbide substrate to another substrate

managed by CIBER-BBN


Our innovation:
-New procedure to delaminate epitaxial graphene from a doped SiC substrate to another substrate by means of mechanical separation, or exfoliation of the graphene wafers.
-The separation is induced by an electrochemical method, specifically the hydrogen bubbling at the graphene-SiC interface produced during the water electrolysis into the graphene-SiC interface.
-An adjustment of the minimal mechanical stress allow to maintain the high crystalline quality of the initial epitaxial graphene.
-Single-step process: single steps-exfoliation without necessity of other additional mechanical traction.
-A polymeric layer with controlled thickness (commercial materials) is used as transfer material.
-The types of substrates that can be used to transfer the EG-SiC are many and known to any expert in the field.


Competitive advantages: cheaper, simpler, one-step exfoliation without previous hydrogenation or multilayer deposition, versatile method applicable to various SiC substrates, reusable SiC substrate after graphene exfoliation, easy scale-up, fast, and economically sustainable process.


To be determined during further development


Patient need addressed: nanoelectronics, biomedical devices

Readiness Level (TRL)

technology concept formulated(The pie chart refers to the entire portfolio contained in the database of the helpdesk)

Technology Readiness Levels (TRL) are a method of estimating technology maturity of Critical Technology Elements (CTE) of a program during the acquisition process. The use of TRLs enables consistent, uniform, discussions of technical maturity across different types of technology.

Patent Grading Report

Patent Grading Report

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Sample Buy from Wisdomain


Current status

International patent application PCT/ES2017/070851 (December 27, 2017)


Available for

Licensing or Assignment


Gemma Rius, Philippe Godignon, Rosa Villa, Elisabet Prats


Case manager: Aida Castellanos Paez

EU-Japan Centre
European CommissionMeti