Linear Electron-Phonon Interaction in Organic Spectral Hole-Burning Materials

The linear electron-phonon interaction in polymethylmethacrylate (PMMA) doped with electron donor zinc-tetraphenylbenzoporphyrin (ZnTPBP) and acceptor phydroxybenzaldhyde (PHBA), or p-aminoacetophenone (PAAP) was investigated by photon-gated spectral hole-burning (PHB). The aim is to study the factors that affect the linear electron-phonon coupling and the thermal stability of spectral holes in the organic film samples.