Ripple Texturing of Suspended Graphene Atomic Membranes
Mesoscale and Nanoscale Physics
2009-07-28 v1 Soft Condensed Matter
Abstract
Graphene is the nature's thinnest elastic membrane, with exceptional mechanical and electrical properties. We report the direct observation and creation of one-dimensional (1D) and 2D periodic ripples in suspended graphene sheets, using spontaneously and thermally induced longitudinal strains on patterned substrates, with control over their orientations and wavelengths. We also provide the first measurement of graphene's thermal expansion coefficient, which is anomalously large and negative, ~ -7x10^-6 K^-1 at 300K. Our work enables novel strain-based engineering of graphene devices.
Keywords
Cite
@article{arxiv.0903.0414,
title = {Ripple Texturing of Suspended Graphene Atomic Membranes},
author = {Wenzhong Bao and Feng Miao and Zhen Chen and Hang Zhang and Wanyoung Jang and Chris Dames and Chun Ning Lau},
journal= {arXiv preprint arXiv:0903.0414},
year = {2009}
}
Comments
15 pages, 4 figures