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Gold nanoparticles ...
Gold nanoparticles : Production, reshaping, and thermal charging
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- Magnusson, Martin H. (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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- Deppert, Knut (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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- Malm, Jan Olle (author)
- Lund University,Lunds universitet,-lup-obsolete,Forskargrupper vid Lunds universitet,Inorganic Chemistry Group, Ebbe Nordlander-lup-obsolete,Lund University Research Groups
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- Bovin, Jan Olov (author)
- Lund University,Lunds universitet,-lup-obsolete,Forskargrupper vid Lunds universitet,Inorganic Chemistry Group, Ebbe Nordlander-lup-obsolete,Lund University Research Groups
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- Samuelson, Lars (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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(creator_code:org_t)
- 1999
- 1999
- English 9 s.
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In: Journal of Nanoparticle Research. - 1388-0764. ; 1:2, s. 243-251
- 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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- Gold nanoparticles are of great interest for various nanoelectronic applications, e.g., for making single electron transistors or very fine leads to molecular size entities. For this and other applications, it is important that all particles have controllable size and shape. In this paper, we describe the production of size-selected gold aerosol particles in the 20 nm range made by evaporation in a high-temperature tube furnace and subsequent size selection. To obtain spherical particles, it was necessary to reshape the particles at high temperature, which was investigated for temperatures between 25°C and 1200°C. High-resolution transmission electron microscopy showed that the degree of crystallinity became higher for higher reshaping temperature. During reshaping at high temperature, an anomalous charging behavior was discovered, whereby negatively as well as positively charged particles became multiply negatively charged. Possible mechanisms for explaining this thermally activated phenomenon are discussed.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Gold
- Nanoparticles
- Particle synthesis
- Size selection
- Thermal charging
Publication and Content Type
- art (subject category)
- ref (subject category)
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