2026-03-12T02:21:10Z https://kanazawa-u.repo.nii.ac.jp/oai

oai:kanazawa-u.repo.nii.ac.jp:00010883 2024-06-20T06:02:46Z 934:935:937

Focused deposition of nanoparticles on polymer film with an improved TSI-nanoparticle sampler (Model 3089) 東, 秀憲 汲田, 幹夫 瀬戸, 章文 大谷, 吉生 Fukumori, Kanata 40294889 Higashi, Hidenori Naito, Takaaki Hama, Naoya 60262557 Kumita, Mikio 40344155 Seto, Takafumi Otani, Yoshio Copyright © 2015 American Association for Aerosol Research. A two-dimensional array of spots of deposited nanoparticles as small as 7 × 7 m was fabricated on a polymer film using a modified commercial nanometer aerosol sampler (NAS; TSI-model 3089) coupled with a surface-discharge microplasma aerosol charger (SMAC). The charged aerosol particles were electrostatically focused by a metal mesh (electrically grounded) on the polymer film (insulator) and electrode (3 kV). The effect of mesh geometry on the concentration ratio (focusing ratio × collection efficiency) was evaluated using monodisperse polystyrene latex particles with diameters of 48, 100, and 300 nm. The electrostatic focusing effect was also analyzed by a numerical simulation of the electrostatic field. The two-dimensional patterning of nanoparticles is an effective method in concentrating particles for the subsequent observation and chemical analysis of aerosol particles. In our experiments, the SMAC-NAS system achieved a net concentration ratio of more than 20 times for 48-and 100-nm particles, which would significantly shorten the aerosol-sampling time. The particle deposition patterns formed on a transparent polymer film may provide samples for analyzing the transmittance, luminescence, and other optical characteristics of deposited nanoparticles. © 2015 American Association for Aerosol Research. Embargo Period 12 months Taylor and Francis Inc. 2015-06-03 2017-10-03 eng journal article AM https://doi.org/10.24517/00010870 http://hdl.handle.net/2297/48649 https://kanazawa-u.repo.nii.ac.jp/records/10883 10.24517/00010870 10.1080/02786826.2015.1031725 AA10635128 0278-6826 Aerosol Science and Technology 49 6 363 370 https://kanazawa-u.repo.nii.ac.jp/record/10883/files/SC-PR-HIGASHI-H-363.pdf application/pdf 1.4 MB 2017-10-03