Ultra-small platinum and gold nanoparticles by arc plasma deposition

Authors
Kim, Sang HoonJeong, Young EunHa, HeonphilByun, Ji YoungKim, Young Dok
Issue Date
2014-04-01
Publisher
ELSEVIER
Citation
APPLIED SURFACE SCIENCE, v.297, pp.52 - 58
Abstract
Ultra-small (< 2 nm) nanoparticles of platinum and gold were produced by arc plasma deposition (APD) in a systematic way and the deposition behavior was studied. Nanoparticles were deposited on two dimensional amorphous carbon and amorphous titania thin films and characterized by transmission electron microscopy (TEM). Deposition behavior of nanoparticles by APD was studied with discharge voltage (V), discharge condenser capacitance (C), and the number of plasma pulse shots (n) as controllable parameters. The average size of intrinsic nanoparticles generated by APD process was as small as 0.9 nm and deposited nanoparticles began to have crystal structures from the particle size of about 2 nm. V was the most sensitive parameter to control the size and coverage of generated nanoparticles compared to C and n. Size of APD deposited nanoparticles was also influenced by the nature of evaporating materials and substrates. (C) 2014 Elsevier B.V. All rights reserved.
Keywords
VACUUM; MULTILAYERS; EROSION; METALS; VACUUM; MULTILAYERS; EROSION; METALS; Nanoparticles; Interfaces; Pt; Au; Arc plasma deposition
ISSN
0169-4332
URI
https://pubs.kist.re.kr/handle/201004/126895
DOI
10.1016/j.apsusc.2014.01.072
Appears in Collections:
KIST Article > 2014
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