Conference proceedings article
Femtosecond-laser-induced destruction of boron-nitride nanotubes and boron-nitride doped graphene



Publication Details
Authors:
Bauerhenne, B.; Eschstruth, N.; Zijlstra, E.; Garcia, M.
Editor:
Veiko Vadim P. ; Vartanyan, Tigran A.
Publisher:
SPIE Press
Place:
Bellingham
Publication year:
2013
Journal:
Proceedings of SPIE
Pages range:
90650K-90650K-6
Book title:
Fundamentals of Laser-Assisted Micro- and Nanotechnologies 2013
Number in series:
9065
Volume number:
9065
Number of pages:
6
ISBN:
9780819499929
ISSN:
0277-786X

Abstract
By means of first principles calculations we studied the intense femtosecond-laser excitation of several boronnitride nanotubes and a boron-nitride doped graphene layer up to irradiation levels where these structures disintegrate. We performed molecular dynamics simulations using our in-house Code for Highly excIted Valence Electron Systems (CHIVES). For different boron-nitride nanotubes we determined the damage threshold in terms of the electronic temperature and the absorbed energy per atom. We found that all nanotubes studied were destroyed in the first 200 fs after an ultrafast laser excitation heating the electrons to 108 mHa (34103 K). Some tubes also disintegrated at lower electronic temperatures. For the boron-nitride doped graphene we found that at a laser-induced electronic temperature of 100 mHa (31577 K) bonds break and the boron-nitride dimer leaves the structure.


Keywords
boron-nitride doped graphene, boron-nitride nanotubes, density functional theory, femtosecond laser pulse, molecular dynamics simulations, ultrafast bond breaking


Authors/Editors

Last updated on 2018-27-09 at 15:44

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