Photoionization of Nanosized Aerosol Gold Agglomerates and Their Deposition To Form Nanoscale Islands on Substrates

Title
Photoionization of Nanosized Aerosol Gold Agglomerates and Their Deposition To Form Nanoscale Islands on Substrates
Author(s)
변정훈Jeffrey T. Roberts[Jeffrey T. Roberts]
Keywords
GAS-PHASE; NUMERICAL-SIMULATION; CHARGE-DISTRIBUTION; NANOPARTICLES; PARTICLES; SURFACE; FRAGMENTATION; FABRICATION; CHEMISTRY; REMOVAL
Issue Date
201407
Publisher
AMER CHEMICAL SOC
Citation
LANGMUIR, v.30, no.29, pp.8770 - 8775
Abstract
Positively charged gold nanoparticles can be produced in the aerosol state by ultraviolet irradiation of aerosols at wavelengths above the gold ionization energy. Spark-discharge-generated aerosol gold nanoparticles were mobility-classified, neutralized, and then exposed to ultraviolet irradiation at 185 nm. The charge states were determined using a tandem differential mobility analyzer system, and the results revealed that there was no significant dependence of charging probability upon mobility diameter between 4 and 60 nm (1.55 +/- 0.26 in positive elementary charge), probably because of the agglomerated nature of the particles. The ionized particles could be deposited to form nanoscale island patterns on a substrate without the use of templates.
URI
http://hdl.handle.net/YU.REPOSITORY/31457http://dx.doi.org/10.1021/la501410z
ISSN
0743-7463
Appears in Collections:
공과대학 > 기계공학부 > Articles
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