Electrochemical Grafting of Naphthylmethyl Radicals to Epitaxial Graphene: A Versatile Platform to Reversibly Engineer the Band Structure and Transport Properties of Graphene

TL;DR

This paper presents a reversible electrochemical method to graft naphthylmethyl radicals onto graphene, enabling tunable bandgap engineering and the creation of erasable dielectric films, advancing graphene's electronic applications.

Contribution

It introduces a novel electrochemical grafting technique for graphene that allows reversible modification of its electronic properties and dielectric characteristics.

Findings

Successful reversible grafting of naphthylmethyl groups onto graphene.

Demonstration of tunable bandgap engineering.

Creation of electrochemically erasable dielectric films.

Abstract

The Kolbe electrochemical oxidation strategy has been utilized to achieve an efficient quasireversible electrochemical grafting of the alpha-naphthylmethyl functional group to graphene. The method facilitates reversible bandgap engineering in graphene and preparation of electrochemically erasable organic dielectric films. The picture shows Raman D-band maps of both systems.