Advanced

Ultrasmall Silver Nanopores Fabricated by Femtosecond Laser Pulses

Bian, F.; Tian, Y. C.; Wang, R.; Yang, H. X.; Xu, Hongxing LU ; Meng, Sheng and Zhao, Jimin (2011) In Nano Letters 11(8). p.3251-3257
Abstract
Ultrasmall nanopores in silver thin films with a diameter of about 2 nm have been fabricated using femtosecond laser ablation in liquid. Ultrafast laser pulse ablation generates highly nonequilibrium excitated states, from which silver thin films emerge and progressively grow with the assistance of capping agent molecules. During this growth process, capping agent molecules are enclaved within the film, leaving individual ultrasmall pores in the thin film. Our first-principles calculations show that the pore size is critically determined by the dimension of the confined molecules. Our approach advances the capability of optical methods in making nanoscale structures with potential applications in areas such as near-field aperture probes,... (More)
Ultrasmall nanopores in silver thin films with a diameter of about 2 nm have been fabricated using femtosecond laser ablation in liquid. Ultrafast laser pulse ablation generates highly nonequilibrium excitated states, from which silver thin films emerge and progressively grow with the assistance of capping agent molecules. During this growth process, capping agent molecules are enclaved within the film, leaving individual ultrasmall pores in the thin film. Our first-principles calculations show that the pore size is critically determined by the dimension of the confined molecules. Our approach advances the capability of optical methods in making nanoscale structures with potential applications in areas such as near-field aperture probes, imaging masks, magnetic plasmonic resonances, and biosensing with individual nanopores. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Nanopore, laser ablation in liquid, femtosecond, capping agent, molecule, first principles, molecular interaction
in
Nano Letters
volume
11
issue
8
pages
3251 - 3257
publisher
The American Chemical Society
external identifiers
  • wos:000293665600033
  • scopus:80051643841
ISSN
1530-6992
DOI
10.1021/nl201529d
language
English
LU publication?
yes
id
f1c5e41b-708b-483f-a9e4-9c10e06359e0 (old id 2159209)
date added to LUP
2011-09-26 07:36:21
date last changed
2017-01-01 06:05:35
@article{f1c5e41b-708b-483f-a9e4-9c10e06359e0,
  abstract     = {Ultrasmall nanopores in silver thin films with a diameter of about 2 nm have been fabricated using femtosecond laser ablation in liquid. Ultrafast laser pulse ablation generates highly nonequilibrium excitated states, from which silver thin films emerge and progressively grow with the assistance of capping agent molecules. During this growth process, capping agent molecules are enclaved within the film, leaving individual ultrasmall pores in the thin film. Our first-principles calculations show that the pore size is critically determined by the dimension of the confined molecules. Our approach advances the capability of optical methods in making nanoscale structures with potential applications in areas such as near-field aperture probes, imaging masks, magnetic plasmonic resonances, and biosensing with individual nanopores.},
  author       = {Bian, F. and Tian, Y. C. and Wang, R. and Yang, H. X. and Xu, Hongxing and Meng, Sheng and Zhao, Jimin},
  issn         = {1530-6992},
  keyword      = {Nanopore,laser ablation in liquid,femtosecond,capping agent,molecule,first principles,molecular interaction},
  language     = {eng},
  number       = {8},
  pages        = {3251--3257},
  publisher    = {The American Chemical Society},
  series       = {Nano Letters},
  title        = {Ultrasmall Silver Nanopores Fabricated by Femtosecond Laser Pulses},
  url          = {http://dx.doi.org/10.1021/nl201529d},
  volume       = {11},
  year         = {2011},
}