Self-Passivation of Defects: Effects of High-Energy Particle Irradiation on the Elastic Modulus of Multilayer Graphene
Journal article published in 2015 by
Kai Liu 
,
Cheng-Lun Hsin,
Deyi Fu,
Joonki Suh,
Sefaattin Tongay,
Michelle Chen,
Yinghui Sun,
Aiming Yan,
Joonsuk Park,
Kin M. Yu ,
Wenli Guo,
Alex Zettl ,
Haimei Zheng,
Daryl C. Chrzan,
Junqiao Wu
,
Cheng-Lun Hsin,
Deyi Fu,
Joonki Suh,
Sefaattin Tongay,
Michelle Chen,
Yinghui Sun,
Aiming Yan,
Joonsuk Park,
Kin M. Yu ,
Wenli Guo,
Alex Zettl ,
Haimei Zheng,
Daryl C. Chrzan,
Junqiao Wu
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Abstract
The elastic modulus of multilayer graphene is found to be more robust to damage created by high-energy α-particle irradiation as compared to monolayer graphene. Theoretical analysis indicates that irradiation of multilayer graphene generates interlayer links that potentially increase the stiffness of the multilayer by passivating local defects.