The study of the interaction of hypervelocity nano-particles with a 2D material and ultra-thin targets (single layer graphene, multi-layer graphene, and amorphous carbon foils) has been performed using mass selected gold nano-particles produced from a liquid metal ion source. During these impacts, a large number of atoms are ejected from the graphene, corresponding to a hole of ∼60 nm2. Additionally, for the first time, secondary ions have been observed simultaneously in both the transmission and reflection direction (with respect to the path of the projectile) from a 2D target. The ejected area is much larger than that predicted by molecular dynamic simulations and a large ionization rate is observed. The mass distribution and characteristics of the emitted secondary ions are presented and offer an insight into the process to produce the large hole observed in the graphene.
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28 January 2015
Research Article|
January 29 2015
Hypervelocity nanoparticle impacts on free-standing graphene: A sui generis mode of sputtering
Michael J. Eller
;
Michael J. Eller
a)
1Institut de Physique Nucléaire d’Orsay, UMR8608, CNRS/IN2P3,
Université Paris-Sud 11
, Orsay F-91406, France
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Chao-Kai Liang;
Chao-Kai Liang
a)
2Department of Chemistry,
Texas A&M University
, College Station, Texas 77843-3144, USA
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Serge Della-Negra;
Serge Della-Negra
1Institut de Physique Nucléaire d’Orsay, UMR8608, CNRS/IN2P3,
Université Paris-Sud 11
, Orsay F-91406, France
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Aaron B. Clubb;
Aaron B. Clubb
2Department of Chemistry,
Texas A&M University
, College Station, Texas 77843-3144, USA
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Hansoo Kim;
Hansoo Kim
3Microscopy and Imaging Center,
Texas A&M University
, College Station, Texas 77843-2257, USA
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Amanda E. Young;
Amanda E. Young
4Materials Characterization Facility,
Texas A&M University
, College Station, Texas 77843-3122, USA
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Emile A. Schweikert
Emile A. Schweikert
b)
2Department of Chemistry,
Texas A&M University
, College Station, Texas 77843-3144, USA
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Michael J. Eller
1,a)
Chao-Kai Liang
2,a)
Serge Della-Negra
1
Aaron B. Clubb
2
Hansoo Kim
3
Amanda E. Young
4
Emile A. Schweikert
2,b)
1Institut de Physique Nucléaire d’Orsay, UMR8608, CNRS/IN2P3,
Université Paris-Sud 11
, Orsay F-91406, France
2Department of Chemistry,
Texas A&M University
, College Station, Texas 77843-3144, USA
3Microscopy and Imaging Center,
Texas A&M University
, College Station, Texas 77843-2257, USA
4Materials Characterization Facility,
Texas A&M University
, College Station, Texas 77843-3122, USA
a)
M. J. Eller and C.-K. Liang contributed equally to this work.
b)
Author to whom correspondence should be addressed. Electronic mail: [email protected]
J. Chem. Phys. 142, 044308 (2015)
Article history
Received:
November 11 2014
Accepted:
January 07 2015
Citation
Michael J. Eller, Chao-Kai Liang, Serge Della-Negra, Aaron B. Clubb, Hansoo Kim, Amanda E. Young, Emile A. Schweikert; Hypervelocity nanoparticle impacts on free-standing graphene: A sui generis mode of sputtering. J. Chem. Phys. 28 January 2015; 142 (4): 044308. https://doi.org/10.1063/1.4906343
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