Abstract

Optical and electrical properties of conjugated polymers have been extensively investigated because 'of their large and fast optical nonlinearities and their role as model compounds for quasi-one dimensional semiconductors. In the present study, time evolution in polydiacetylenes (PDA-3BCMU and PDA-4BCMU) and poly(3-methy1thiophene) (P3MT) was investigated by femtosecond absorption spectroscopy and picosecond luminescence spectroscopy [1]-[3]. The samples of PDA-3BCMU and PDA-4BCMU (butoxycarbonylmethylurethane) are cast films of about 100 nm thickness on glass substrates. About 1 μm-thick films of P3MT was prepared by electrochemical polymerization on glass substrates.

© 1990 Optical Society of America