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Updated: Mar 26, 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

Automatic graphene transfer system for improved material quality and efficiency.

Alberto Boscá^1,2, Jorge Pedrós^1,2,3, Javier Martínez^1,4

¹Instituto de Sistemas Optoelectrónicos y Microtecnología, Universidad Politécnica de Madrid, Madrid, 28040, Spain.

Scientific Reports

|February 11, 2016

Summary

This summary is machine-generated.

A new automated system precisely transfers chemical vapor deposition (CVD) graphene, improving device performance. This fluidic method enhances graphene quality and is scalable for industrial use.

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Published on: November 5, 2015

Area of Science:

Materials Science
Nanotechnology
Surface Chemistry

Background:

Chemical vapor deposition (CVD) graphene transfer is crucial for device performance.
Manual transfer is slow and skill-dependent; existing automated methods damage rigid substrates.

Purpose of the Study:

To develop a novel automated system for transferring CVD graphene to arbitrary substrates.
To overcome limitations of manual and existing automated transfer methods, minimizing damage and contamination.

Main Methods:

Utilized all-fluidic manipulation of graphene to prevent mechanical damage, strain, and contamination.
Employed capillary action and electrostatic repulsion for precise, centered sample placement.

Main Results:

Achieved 70% higher carrier mobility and a 30% reduction in unintentional doping compared to manual transfer.
Demonstrated a 10% reduction in strain in the transferred graphene.
Verified improvements through optical and electrical characterization of fabricated field-effect transistors.

Conclusions:

The developed fluidic system offers a damage-free, automated solution for CVD graphene transfer.
The technology is scalable from lab-scale to industrial applications, enhancing graphene quality and device yield.