[18p-A25-1~16] 3.6 Laser processing

3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-A25-7] One-Step Fabrication of Two-layer Structure Composed of Graphene Quantum Dots (GQDs) and Conductive Structure by Laser Carbonization of PDMS

〇Kosuke Tsukada¹, Mitsuhiro Terakawa^1,2 (1.Grad. Sch. Keio Univ., 2.Keio Univ.)

Keywords:

laser carbonization,quantum dots,fluorescence device

Graphene quantum dots (GQDs) are fluorescent nanoparticles of graphitic carbon that exhibit temperature-dependent fluorescence. In this study, a two-layer structure composed of a conductive core and surrounding GQDs was fabricated by laser carbonization using PDMS as a precursor. Furthermore, we demonstrated that the fluorescence intensity can be changed by applying a voltage to the central conductive structure. Our method would realize the fabrication of voltage-controlled anti-counterfeiting tags in the future.