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Ultrasmall Silver N...
Ultrasmall Silver Nanopores Fabricated by Femtosecond Laser Pulses
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Bian, F. (author)
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Tian, Y. C. (author)
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Wang, R. (author)
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Yang, H. X. (author)
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- Xu, Hongxing (author)
- Lund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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Meng, Sheng (author)
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Zhao, Jimin (author)
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(creator_code:org_t)
- 2011-07-06
- 2011
- English.
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In: Nano Letters. - : American Chemical Society (ACS). - 1530-6992 .- 1530-6984. ; 11:8, s. 3251-3257
- Related links:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Subject headings
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- 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology -- Nano-technology (hsv//eng)
Keyword
- Nanopore
- laser ablation in liquid
- femtosecond
- capping agent
- molecule
- first principles
- molecular interaction
Publication and Content Type
- art (subject category)
- ref (subject category)
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