Hi,

You may make an inquiry at Alfa Chemistry, they offer a wide range of high quality chemicals and good advices.

https://www.alfa-chemistry.com/inquiry

Hello Aleksandra Nadolska,

You can ask in the Graphene Supermarket (https://catalog.graphene-info.com/), as far as I know they can customize the substrate of your choice.

Regards!

Henan Rongsheng Xinwei New Materials Research Institute Co.. represents an enterprise producing the high-performance refractory new materials, high-performance new refractory materials, and are committed to providing advanced technology, high-efficiency, energy-saving, safe and environmentally friendly high-performance new refractory materials and system solutions for the global high-temperature industry. The main products include melting and casting materials, sintering materials, thermal insulation materials, metallurgical auxiliary materials, refractory raw materials, amorphous materials and graphite products.

You can buy graphene on SiC using adress:

https://rsxwref.com/service/refractory/