Dynamics of ZnO nanoparticles formed in the high-pressure phase during growth of ZnO nanocrystals

Daisuke Nakamura, T. Shimogaki, S. Takao, S. Nakao, K. Harada, M. Higashihata, T. Okada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The dynamics of zinc oxide (ZnO) nanoparticles formed in Ar gas of 200 Torr by laser ablation are visualized by ultraviolet Rayleigh scattering imaging. The time-resolved imaging of the ZnO nanoparticles are presented for several conditions of single-pulse ablation and 10 Hz ablation at room temperature. Scattering light from the nanoparticles appeared at 1-2 ms after ablation, and the spatial distribution was a mushroom like swirling cloud. The cloud propagates forward about 2.6 m/s without lateral expansion. In addition, nanoparticle distribution at a substrate heating condition, which is growth condition of ZnO nanocrystals is investigated. The nanoparticles under heating condition formed almost the same spatial distribution as that of room temperature and their speed was increased to 3.2 m/s at 750 °C.

Original languageEnglish
Title of host publicationLaser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XX
EditorsStephan Roth, Xianfan Xu, Yoshiki Nakata, Beat Neuenschwander
PublisherSPIE
ISBN (Electronic)9781628414400
DOIs
Publication statusPublished - Jan 1 2015
EventLaser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XX - San Francisco, United States
Duration: Feb 9 2015Feb 12 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9350
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherLaser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XX
CountryUnited States
CitySan Francisco
Period2/9/152/12/15

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Nakamura, D., Shimogaki, T., Takao, S., Nakao, S., Harada, K., Higashihata, M., & Okada, T. (2015). Dynamics of ZnO nanoparticles formed in the high-pressure phase during growth of ZnO nanocrystals. In S. Roth, X. Xu, Y. Nakata, & B. Neuenschwander (Eds.), Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XX [93500X] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9350). SPIE. https://doi.org/10.1117/12.2080503