Sökning: id:"swepub:oai:DiVA.org:uu-252026" >
Precursor-Less Coat...
Precursor-Less Coating of Nanoparticles in the Gas Phase
-
Pfeiffer, Tobias V. (författare)
-
Kedia, Puneet (författare)
-
- Messing, Maria (författare)
- 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
-
visa fler...
-
- Valvo, Mario (författare)
- Uppsala universitet,Strukturkemi
-
Schmidt-Ott, Andreas (författare)
-
visa färre...
-
(creator_code:org_t)
- 2015-03-11
- 2015
- Engelska.
-
Ingår i: Materials. - : MDPI AG. - 1996-1944. ; 8:3, s. 1027-1042
- Relaterad länk:
-
https://www.mdpi.com...
-
visa fler...
-
http://dx.doi.org/10... (free)
-
https://urn.kb.se/re...
-
https://doi.org/10.3...
-
https://lup.lub.lu.s...
-
visa färre...
Abstract
Ämnesord
Stäng
- This article introduces a continuous, gas-phase method for depositing thin metallic coatings onto (nano)particles using a type of physical vapor deposition (PVD) at ambient pressure and temperature. An aerosol of core particles is mixed with a metal vapor cloud formed by spark ablation by passing the aerosol through the spark zone using a hollow electrode configuration. The mixing process rapidly quenches the vapor, which condenses onto the core particles at a timescale of several tens of milliseconds in a manner that can be modeled as bimodal coagulation. Gold was deposited onto core nanoparticles consisting of silver or polystyrene latex, and silver was deposited onto gold nanoparticles. The coating morphology depends on the relative surface energies of the core and coating materials, similar to the growth mechanisms known for thin films: a coating made of a substance having a high surface energy typically results in a patchy coverage, while a coating material with a low surface energy will normally "wet" the surface of a core particle. The coated particles remain gas-borne, allowing further processing.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas