Synthesis of Highly n‐Type Graphene by Using an Ionic Liquid

Abstract

n-Type graphene: A new, easy, and cheap method to produce n-type reduced graphene oxide was developed by synthesizing a partially reduced intermediate containing nitrogen (PrGO-IL, see scheme) by treating graphene oxide (GO) with an ionic liquid (IL) at 160 °C followed by rapid thermal annealing (RTA) at temperatures ranging from 400 to 1000 °C. A high N-doping level of 6 % was achieved and the N-doped rGO exhibits n-type behavior with a Dirac point at −38 V at 400 °C. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.