Significant Effect of Molecular Structure on Surface Relief Grating Formation for Novel Azobenzene-Based Photochromic Amorphous Molecular Materials

A significant effect of molecular structure on the formation of surface relief grating (SRG) was found for novel azobenzene-based photochromic amorphous molecular materials, N,Nʹ-bis[4-(phenylazo)phenyl]-N,Nʹ-diphenyl-p-phenylenediamine and N,N-bis [4-(phenylazo)phenyl]-Nʹ,Nʹ-diphenyl-p-phenylenediamine. The results provide helpful information about SRG formation.