Electronic Tuning of 2D MoS2 through Surface Functionalization

Emily P Nguyen; Benjamin J Carey; Jian Zhen Ou; Joel van Embden; Enrico Della Gaspera; Adam F Chrimes; Michelle J S Spencer; Serge Zhuiykov; Kourosh Kalantar-Zadeh; Torben Daeneke

doi:10.1002/adma.201503163

Electronic Tuning of 2D MoS2 through Surface Functionalization

Adv Mater. 2015 Oct 28;27(40):6225-9. doi: 10.1002/adma.201503163. Epub 2015 Sep 16.

Affiliations

¹ School of Electrical and Computer Engineering, RMIT University, 124 La Trobe Street, Melbourne, Victoria, 3000, Australia.
² School of Applied Chemistry, RMIT University, 124 La Trobe Street, Melbourne, Victoria, 3000, Australia.
³ CSIRO Manufacturing Flagship, Bayview Ave, Clayton, Victoria, 3168, Australia.
⁴ Division of Materials Science and Engineering, CSIRO, 37 Graham Road, Highett, Victoria, 3190, Australia.

PMID: 26375859
DOI: 10.1002/adma.201503163

Abstract

The electronic properties of thiol-functionalized 2D MoS2 nanosheets are investigated. Shifts in the valence and conduction bands and Fermi levels are observed while bandgaps remain unaffected. These findings allow the tuning of energy barriers between 2D MoS2 and other materials, which can lead to improved control over 2D MoS2 -based electronic and optical devices and catalysts.

Keywords: electronic properties; functionalization; molybdenum disulfide; nanosheets; thiols.