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Related Experiment Video

Updated: Jun 1, 2026

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices

Published on: July 11, 2025

Wafer-scale graphene integrated circuit.

Yu-Ming Lin¹, Alberto Valdes-Garcia, Shu-Jen Han

¹IBM Thomas J. Watson Research Center, Yorktown Heights, NY 10598, USA. yming@us.ibm.com

Science (New York, N.Y.)

|June 11, 2011

Summary

This summary is machine-generated.

A novel wafer-scale graphene circuit integrates transistors and inductors on silicon carbide. This broadband radio-frequency mixer operates up to 10 GHz and shows excellent thermal stability, paving the way for advanced graphene electronics.

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Area of Science:

Materials Science
Electrical Engineering
Nanotechnology

Background:

Graphene's unique electronic properties offer potential for advanced integrated circuits.
Monolithic integration of diverse circuit components on a single substrate remains a challenge.

Purpose of the Study:

To demonstrate a wafer-scale graphene circuit with monolithically integrated components.
To evaluate the performance and thermal stability of the integrated radio-frequency mixer.

Main Methods:

Fabrication of a wafer-scale graphene circuit including graphene field-effect transistors and inductors.
Monolithic integration of all components onto a single silicon carbide wafer.
Characterization of the circuit's performance as a broadband radio-frequency mixer up to 10 GHz.

Main Results:

Successful demonstration of a wafer-scale graphene circuit with all components integrated.
The circuit functioned as a broadband radio-frequency mixer operating at frequencies up to 10 gigahertz.
Exhibited outstanding thermal stability, with performance degradation less than 1 decibel between 300 and 400 Kelvin.

Conclusions:

Monolithic integration of graphene circuits on silicon carbide is feasible.
The demonstrated graphene radio-frequency mixer shows high performance and thermal stability.
This work advances the potential for practical graphene technology with complex functionalities.