Highly Accurate, Reliable and Non-Contaminating Two-Dimensional Material Transfer System

TL;DR

This paper presents a novel deterministic transfer system for 2D materials that achieves high accuracy, reliability, and non-contamination, enabling rapid prototyping and improved device fabrication.

Contribution

The paper introduces a new transfer technique for 2D materials that overcomes previous limitations in precision, contamination, and speed, facilitating advanced device development.

Findings

High transfer accuracy and yield demonstrated

Transfer process is non-contaminating and reliable

Enables rapid prototyping of 2D material devices

Abstract

The exotic properties of two-dimensional (2D) materials and 2D heterostructures, built by forming heterogeneous multi-layered stacks, have been widely explored across a number of subject matters following the goal to invent, design, and improve applications enabled by 2D materials. To successfully harvest these unique properties effectively and increase the yield of manufacturing 2D material-based devices for achieving reliable and repeatable results is the current challenge. The scientific community has introduced various experimental transfer systems explained in detail for exfoliated 2D materials, however, the field lacks statistical analysis and the capability of producing a transfer technique enabling; i) high transfer precision and yield, ii) cross-contamination free transfer, iii) multi-substrate transfer, and iv) rapid prototyping without wet chemistry. Here we introduce a novel 2D material deterministic transfer system and experimentally show its high accuracy, reliability, repeatability, and non-contaminating transfer features by demonstrating fabrication of 2D material-based optoelectronic devices featuring novel device physics and unique functionality. Such rapid and material-near prototyping capability can accelerate not only layered material science in discovery but also engineering innovations.