[24p-E106-1~18] 3.7 Laser processing

[24p-E106-10] Formation of carbon nano-onions by femtosecond laser carbonization of polydimethylsiloxane

〇Masato Kai¹, Shuichiro Hayashi², Mitsuhiro Terakawa^1,2 (1.Keio Univ., 2.Grad. Sch. Keio Univ.)

Keywords:laser carbonization, femtosecond laser, carbon nano-onions

Carbon nano-onions (CNOs) are carbon-based materials which exhibit high chemical stability and large specific surface areas, rendering them a promising material for applications, such as supercapacitors. In this study, we show that sp² and sp³ hybridized carbons can be observed on the surface of polydimethylsiloxane after femtosecond laser pulse irradiation. In addition, formation of hollow CNOs was confirmed.