Journal of the American Ceramic Society, Vol.100, No.4, 1275-1279, 2017
PbZr0.4Ti0.6O3 dielectric reflectors with large photonic band gap and high average optical reflectivity
PbZr0.4Ti0.6O3 multilayer, comprising of three PbZr0.4Ti0.6O3 stacks with a slight difference in their periodic thickness, has been designed and fabricated on FTO substrate based on one single chemical solution and on the simple spinning-coating and annealing technique. The obtained multilayer exhibits a high reflectivity band with 110 nm photonic stop-band width and average reflectivity of over 80% at room temperature, rendering the novel arrange of PbZr0.4Ti0.6O3 multilayer system a promising candidate as tunable dielectric mirrors, optical cavities and selective filters.
Keywords:ferroelectricity;ferroelectric materials;lead zirconate titanate;multilayers;optical materials;properties;sol-gel