All-in-one layer:: Anisotropic emission due to light-induced orientation of a multifunctional polymer

An efficient procedure to create oriented polymer films with strongly anisotropic properties is described. It is based on a two-step process combining a photochemical and a thermal aligning step. The orientation of the polymer parallel or perpendicular to linearly polarised incident light can be adjusted. The method presented allows for simple fabrication of films with anisotropic absorption and emission characteristics with a dichroism of 0.7 and a fluorescence anisotropy of about 8.