Polysilanes thin films doped by coumarin

Abstract

In our work, we present a study of the influence of dopant on optoelectrical properties of polysilane and especially its photoluminescence. Poly[(dimethylsilane)-(methyphenylsilane)] - P(DMSi-MPSi) was used as the p-type conductive polymer and coumarin 440 as the dopant. Thin films with thickness in hundreds nanometers were prepared both from neat polymer and from blend P(DMSi-MPSi)/Coumarin 440. Absorption characteristics of films were measured by UV/VIS spectrometry. The photoluminescence (PL) of thin films was investigated by fluorimetry.