Photoluminescence in polypropylene induced by ultraviolet laser irradiation

Author

Ohki, Yoshimichi ; Toyoda, Takehiko ; Hama, Yoshimasa ; Wei, Wei ; Massines, Franqoise

Author_Institution

Waseda Univ., Tokyo, Japan

Volume

1

fYear

2000

fDate

2000

Firstpage

439

Abstract

We have measured luminescence spectra induced in polypropylene by irradiation of photons from an ArF excimer laser and synchrotron radiation in order to examine the photo-induced chemical reactions in polypropylene. The luminescence spectrum and its kinetics have been measured as a function of irradiation time of the excimer laser under different irradiation atmospheres (air, O₂, and vacuum). The important result obtained is that the luminescence component around 4 eV decreases with an increase in irradiation time irrespective of the irradiation atmosphere. The luminescence component around 3 eV increases with an increase in irradiation time only in the case that the laser irradiation was done in vacuum. These results suggest that different chemical groups are induced depending on the irradiation atmosphere

Keywords

laser beam effects; photoluminescence; polymers; ultraviolet radiation effects; ArF excimer laser; luminescence kinetics; photochemical reaction; photoluminescence; polymeric insulating material; polypropylene; synchrotron radiation; ultraviolet laser irradiation; Atmosphere; Atmospheric measurements; Chemical lasers; Laser excitation; Luminescence; Optical materials; Photoluminescence; Plastic insulation; Polymers; Synchrotron radiation;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 2000. Proceedings of the 6th International Conference on

Conference_Location

Xi´an

Print_ISBN

0-7803-5459-1

Type

conf

DOI

10.1109/ICPADM.2000.875724

Filename

875724