Fabrication of arrays of ballistic epitaxial graphene nanoribbons

Graphene nanoribbons;Ballistic transport;Pristine graphene;Contacting graphene

Deniz, Dogukan ; de Heer, Walter Physics Jiang, Zhigang First, Phillip Mourigal, Martin Naeemi, Azad ; de Heer, Walter

University:Georgia Institute of Technology

Department:Physics

关键词: Graphene nanoribbons;    Ballistic transport;    Pristine graphene;    Contacting graphene;   

Others  :  https://smartech.gatech.edu/bitstream/1853/61155/1/DENIZ-DISSERTATION-2018.pdf

美国|英语

来源: SMARTech Repository

【 摘 要 】

Epitaxial graphene nanoribbons have recently demonstrated exceptional one dimensional ballistic transport where charge carriers can travel without scattering up to 16 m atroom temperature (STM probes in UHV). These transport properties are not yet fully understood, and they can only be exploited if nanoribbons can be produced at large scale withgood properties in ambient conditions. Following up on these results, in this thesis I will summarize my work on arrays of epitaxial graphene nanoribbons grown on the sidewallsof trenches and steps of silicon carbide. I will discuss nanoribbon growth, nanofabrication, factors that affect nanoribbon transport and how mean free paths larger than one micron are consistently found at room temperature for thousands of nanoribbons.