Photo-writing self-erasable phosphorescent images using poly(<i>N</i>-vinyl-2-pyrrolidone) as a photochemically deoxygenating matrix

Abstract

A passive photo-writing approach for optical data recording is described. Poly(N-vinyl-2-pyrrolidone) has been demonstrated as a photochemically deoxygenating polymeric matrix in which phosphorescent images from a molecular phosphor could be written by photo-activation and be competitively erased by diffusional oxygen quenching.