Three-Dimensional Photochemical Microfabrication of Conductive Polymers in Transparent Polymer Sheet

• Published in: Optical review Vol. 16; no. 2; pp. 208 - 212
• Main Authors: Yamada, Katsumi, Sone, Junji, Chen, Jun
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Japan Optical Society of Japan 01.03.2009; Springer
• Subjects: Atomic; Biological and medical applications; conductive polymers; Exact sciences and technology; femtosecond laser; Fundamental areas of phenomenology (including applications); Lasers; Microwaves; Molecular; multi-photon absorption; Optical and Plasma Physics; Optical Devices; Optics; photofabrication; Photonics; Physics; Physics and Astronomy; Quantum Optics; Regular Papers; RF and Optical Engineering; multi-photon absorption; femtosecond laser; photofabrication; conductive polymers; Two photon excitation; Multi-photon processes; Organic polymers; Laser beam applications; Excited states; Experimental study; Pulsed lasers; Manufacturing processes; Photopolymerization; fs range; Oxidation; Polypyrroles; Microstructure
• ISSN: 1340-6000; 1349-9432
• DOI: 10.1007/s10043-009-0038-z

By focused illumination at the wavelength of 800 nm using a femtosecond laser, the tris(2,2′-bipyridyl)ruthenium complex displayed a two-photon excitation as observed by the quadratic dependence of the emission intensity on the incident laser power. Since the oxidation of pyrrole is induced by the oxidative quenching of the excited state, polypyrrole can be formed by a continuous illumination. The polymerization area showed a high spatial selectivity which can be scanned in the XYZ axis by a piezo device. In the present study, three-dimensional (3D) polypyrrole microstructures were formed in the transparent polymer sheet.