Abstract

In recent years, there has been great interest in optical and electrical properties of conjugated polymers because of their large and fast optical nonlinearities and their role as model compounds for quasi-1-D semiconductors. In the present study, time evolution in polydiacetylenes (PDA-3BCMU and PDA-4BCMU) and poly(3-methylthiophene) (P3MT) was investigated by absorption and luminescence spectroscopies from femtoseconds to microseconds.^1-3 The samples of PDA-3BCMU and PDA-4BCMU (butoxycarbonylmethylurethane) are cast films of ~100-nm thickness on glass substrates. About 1µm thick P3MT films were prepared by electrochemical polymerization on glass substrates.

© 1990 Optical Society of America