1984 Volume 41 Issue 7 Pages 377-382
Fluorescence properties of the solid films of polymers doped with biscarbazolyl compounds have been examined. For a, ω-biscarbazolylalkanes, the monomer fluorescence is quenched and excimer fluorescence becomes prominent as the concentration increases. The intensity ratios of excimer emission to monomer emission are varied in the order of compounds in which two carbazole groups are bound by C6, C4, C10, C5 and C8 methylene chains. No sandwich excimer fluorescence could be observed in 1, 2-trans-biscarbazolylcyclobutane even at the highest accessible concentration. Thus the intramolecular interaction dominates the excimer formation in solid solutions of biscarbazolyl compounds in polycarbonate.
