121st General Meeting of the KCS

Type Poster Presentation
Area Physical Chemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code PHYS.P-226
Subject Time-Resolved Imaging of Laser Induced Cavitation Bubbles (LICBs) Dynamics by Pulsed Laser Ablation in Liquid Phase: The Effect of Various Solvents
Authors Hyeon Jin Jung, Seung Jun Lee, Seung Heon Lee, Myong Yong Choi*
Department of Chemistry, Gyeongsang National University, Korea
Abstract We performed a dynamic study of laser induced cavitation bubbles (LICBs) formation using pulsed laser ablation in liquid (PLAL). We have found a strong relation of specific phase formation of nickel nanoparticles (Ni NPs) with the lifetime of the LICBs. In this work, we have found that relatively short and long lifetime of LICBs as compared to various solvents (methanol, deionized water, hexane, and acetonitrile) and generates the hexagonal close packed structure (hcp) and face centered cubic (fcc) phase of Ni NPs, respectively. The dynamic study of PLAL was conducted by measuring the time-resolved LICBs size through an intensified charge coupled device (ICCD) camera. From this study, we were able to suggest for the first time that the crystal phase formed in PLAL is strongly depends on the lifetime of the LICBs.
E-mail llllsimple@gnu.ac.kr