Preparation of conducting polymer thin films by UV laser-assisted deposition

Satoru Nishio; Motoyoshi Okumura; Yoshiaki Taketani; Akiyoshi Matsuzaki; Hiroyasu Sato

doi:10.1117/12.405722

6 November 2000 Preparation of conducting polymer thin films by UV laser-assisted deposition

Satoru Nishio, Motoyoshi Okumura, Yoshiaki Taketani, Akiyoshi Matsuzaki, Hiroyasu Sato

Proceedings Volume 4088, First International Symposium on Laser Precision Microfabrication; (2000) https://doi.org/10.1117/12.405722
Event: First International Symposium on Laser Precision Microfabrication (LPM2000), 2000, Omiya, Saitama, Japan

Abstract

UV Laser-Assisted Deposition (UV-LAD) of three kinds of thiophene related compounds, 2,5-dibromothiophene (DBT), 5,5'-dibromo-2, 2'-bithiophene (DBBT) and 5,5'''-dibromo- 2,2':5',5''-terthiophene (DBTT) with 248 (KrF), 308 (XeCl) and 351nm (XeF) beams enabled us to obtain polythiophene thin films with highly oriented fibrous structure called laser induced periodic structure (LIPS). The conductivities of the films from DBBT with a 308nm beam and from DBTT with a 351nm beam have reached to the order of 10^-3 and 10^-1 Scm^-1, respectively, by doping with iodine after the UV-LAD process. FT-IR, XPS and UV-vis. Spectra show that, although sulfur atoms are eliminated to some extent, polymerization basically occurs at (alpha) positions of the thiophene related compounds by elimination of halogen atoms.

Citation Download Citation

Satoru Nishio, Motoyoshi Okumura, Yoshiaki Taketani, Akiyoshi Matsuzaki, and Hiroyasu Sato "Preparation of conducting polymer thin films by UV laser-assisted deposition", Proc. SPIE 4088, First International Symposium on Laser Precision Microfabrication, (6 November 2000); https://doi.org/10.1117/12.405722

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