Spectral and electroluminescent properties of divinylbiphenylyl

The results of studies of the spectral, luminescent, and electroluminescent characteristics of four linear divinylbiphenylyl derivatives are presented. All the compounds under study fluoresce effectively in solutions and thin films in the blue spectral range. For thermally vacuum-deposited films, it is possible that absorption and luminescence spectra change due to aggregate formation. The studied biphenyl derivatives can electroluminesce in simple single-layer devices with a low (4 V) threshold voltage.