The 80th JSAP Autumn Meeting 2019

Presentation information

Oral presentation

3 Optics and Photonics » 3.7 Laser processing

[19p-E303-1~8] 3.7 Laser processing

Thu. Sep 19, 2019 3:45 PM - 6:00 PM E303 (E303)

Hiroyuki Wada(Tokyo Tech), Takehito Yoshida(Natl. Inst. of Tech., Anan Col.)

5:15 PM - 5:30 PM

[19p-E303-6] Formation of gel-like agglomerates of nanoparticles during laser ablation in a liquid system and its utilization for nanocomposite preparation.

Takeshi Tsuji1, Miki Kaneko1, Moeto Fujiwara1, Daiki Atarashi1, Hidetoshi Miyazaki1 (1.Shimane Univ.)

Keywords:laser, colloids, agglomeration

We have found that laser ablation for CaO powder in ethanol resulted in the formation of gel-like structure, which was a very different phenomenon from those usually observed in laser ablation in liquids. We have clarified that the gel-like structure formation occurs via the CaO nanoparticle agglomeration. In addition, it was demonstrated that composite of the gel-like structures and metal nanoparticles can be obtained by mixing of these colloids.