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OnderzoekZernike (ZIAM)NewsSeminars

Lecture Vivek B. Shenoy

Rooster

WanneerWaar
13 juli 2011 FWN-Building 5114.0004, Nijenborgh 4, 9747 AG, Groningen
Speaker: Prof. Dr. Vivek B. Shenoy
Affiliation: Brown University
Title: Mechanics of "flimsy" 2D crystalline sheets: applications to graphene and its derivatives
Date: Wed Jul 13, 2011
Start: 11.00
Location: FWN-Building 5114.0004
Host: Erik van der Giessen
Telephone: +31 50 363 8046

Abstract

Free-standing crystalline 2D materials such as graphene and its derivatives (e.g. graphane, graphene oxide), BN and composites of these materials have received attention for their potential applications in logic, energy storage and optoelectronics. Many of the fascinating and important physical properties of these materials depend on the geometrical structure of the flat crystalline membrane, and can be altered by deformation. In contrast to other low dimensional structures such as nanotubes, 2D sheets are very flexible, “flimsy” structures. Deformations can be caused by various factors, including thermal fluctuations or chemical functionalization and defects. In this talk I will discuss our work on ripples, buckles and warps in single component and compound 2D sheets induced by the presence of edges, heterointerfaces and adatoms. The effect of strain induced by functionalized atoms and defects on chemical reactivity and mechanical, thermal and electronic properties will also be discussed.
Laatst gewijzigd:22 oktober 2012 14:30