Modification of Electronic Properties of Graphene with Self-Assembled Monolayers

作者：Lee B; Chen Y; Duerr F; Mastrogiovanni D; Garfunkel E; Andrei E Y; Podzorov V^*

来源：Nano Letters, 2010, 10(7): 2427-2432.

DOI：10.1021/nl100587e

• Graphene
• self-assembled monolayers
• graphene edge functionalization
• doping of graphene
• transport in graphene

Integration of organic and inorganic electronic materials is one of the emerging approaches to achieve novel material functionalities Here, we demonstrate a stable self-assembled monolayer of an alkylsilane grown at the surface of graphite and graphene Detailed characterization of the system using scanning probe microscopy. X-ray photoelectron spectroscopy, and transport measurements reveals the monolayer structure and its effect on the electronic properties of graphene The monolayer induces a strong surface doping with a high density of mobile holes (n > 10(13) cm(-2)) The ability to tune electronic properties of graphene via stable molecular self-assembly, including selective doping of steps, edges, and other defects, may have important implications in future graphene electronics

• 出版日期2010-7
• 单位rutgers