The main results of the spectroscopic analyses (infrared and ultraviol
et - visible - near infrared) carried out on PPV films before and afte
r ion implantation with halogen and alkali ions are presented in this
paper. The influence of both ions nature and implantation parameters o
n optical properties of this polymer have been pointed out and the app
earence of a weak band due to doping has been observed by infrared spe
ctroscopy.