Strain engineering in graphene by laser irradiation

We demonstrate that the Raman spectrum of graphene on lithium niobate can be controlled locally by continuous exposure to laser irradiation. We interpret our results in terms of changes to doping and mechanical strain and show that our observations are consistent with light-induced gradual strain re...

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Bibliographic Details
Main Authors: Papasimakis, N., Mailis, S., Huang, C. C., Al-Saab, F., Hewak, D. W., Luo, Z., Shen, Z. X.
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2015
Subjects:
Online Access:https://hdl.handle.net/10356/106980
http://hdl.handle.net/10220/25282
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Institution: Nanyang Technological University
Language: English
Description
Summary:We demonstrate that the Raman spectrum of graphene on lithium niobate can be controlled locally by continuous exposure to laser irradiation. We interpret our results in terms of changes to doping and mechanical strain and show that our observations are consistent with light-induced gradual strain relaxation in the graphene layer.