The results of a study of the structural, optical, and photoluminescent properties of the thin-film structure ZnO/ferroelectric ceramics PLZT are presented. The results of X-ray diffraction analysis of a zinc oxide film synthesized on a PLZT substrate and on a quartz substrate are presented. The transmission spectra, reflection spectra, absorption spectra, and spectral dependence of the photoluminescence of the thin-film structure of ZnO- PLZT and the structure of ZnO-SiO2 in the ultraviolet and visible spectral ranges are presented.