# Graphene Transport Mediated by Micropatterned Substrates

## TL;DR

This paper presents the fabrication and characterization of tunable, topographically patterned substrates for graphene, enabling the study of strain and doping effects on transport properties in graphene devices.

## Contribution

It introduces a method to create tunable, topographically patterned substrates suitable for transport measurements in graphene, facilitating new explorations of strain and doping effects.

## Key findings

- Topographic features induce local strain and doping in graphene.
- Transport measurements reveal characteristic behavior related to substrate patterning.
- Fabrication process allows tunability and compatibility with transport studies.

## Abstract

Engineered substrates offer a promising avenue towards graphene devices having tunable properties. In particular, topographically patterned substrates can expose unique behavior due to their ability to induce local variations in strain and electrostatic doping. However, to explore the range of possible science and applications, it is important to create topographic substrates which both have tunable features and are suitable for transport measurements. In this Letter we describe the fabrication of tunable, topographically patterned substrates suitable for transport measurements. We report both optical and transport measurements of graphene devices fabricated on these substrates, and demonstrate characteristic strain and local doping behavior induced by the topographic features.