Polarized photoluminescence of oligothiophenes in nematic liquid crystalline matrices

The macroscopic alignment of an extended conjugated oligomer by the simple means of embedding it in a liquid crystalline matrix and utilizing the properties of the host is demonstrated. That the orientation of the oligothiophene, in this case α‐sexithiophenyl, can be dynamically switched with the host nematic lattice upon application of an electric field is observed by the switching of the polarized photoluminescence. This simple procedure for orientation opens up new areas for detailed study of this class of materials.