About some properties of terthiophene thin films otained in the presence of a red hot wolfram filament

Terthiophene powder was synthesised following the cross-coupling Grignard r eaction. A tungsten crucible with a multiholed cover was used to evaporate the powder under vacuum. A red-hot wolfram filament is placed between the e vaporation source and the: substrates. The variations of the properties of the deposited films were studied using the evaporation rate and the filamen t temperature as parameters, it is shown that there is some activation of t he terthiophene by the hot wolfam filament.