Nano Archive

Doping graphene films via chemically mediated charge transfer

Ishikawa, Ryousuke and Bando, Masashi and Morimoto, Yoshitaka and Sandhu, Adarsh (2011) Doping graphene films via chemically mediated charge transfer. Nanoscale Research Letters, 6 (1). pp. 1-5.

[img]
Preview
PDF
505Kb

Official URL: http://www.nanoscalereslett.com/content/6/1/111

Abstract

Transparent conductive films (TCFs) are critical components of a myriad of technologies including flat panel displays, light-emitting diodes, and solar cells. Graphene-based TCFs have attracted a lot of attention because of their high electrical conductivity, transparency, and low cost. Carrier doping of graphene would potentially improve the properties of graphene-based TCFs for practical industrial applications. However, controlling the carrier type and concentration of dopants in graphene films is challenging, especially for the synthesis of p-type films. In this article, a new method for doping graphene using the conjugated organic molecule, tetracyanoquinodimethane (TCNQ), is described. Notably, TCNQ is well known as a powerful electron accepter and is expected to favor electron transfer from graphene into TCNQ molecules, thereby leading to p-type doping of graphene films. Small amounts of TCNQ drastically improved the resistivity without degradation of optical transparency. Our carrier doping method based on charge transfer has a huge potential for graphene-based TCFs.

Item Type:Article
Subjects:Physical Science > Nano objects
Material Science > Nanochemistry
Divisions:Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:10862
Deposited By:JNCASR
Deposited On:20 Oct 2011 10:13
Last Modified:20 Oct 2011 10:13

Repository Staff Only: item control page