Abstract
Quasiperiodic ferroelectric PbZr0.4Ti0.6O3 multilayers have been fabricated using the sol–gel technique based on one single precursor. The building block of the multilayer is the distinct PbZr0.4Ti0.6O3/porous-PbZr0.4Ti0.6O3 bilayer formed in a single spin-casting/annealing step and the formation of the bilayer is governed by phase segregation process. The quasiperiodic ferroelectric multilayer exhibits good performance as a Bragg reflector. With 11 periods, 90% reflectivity and 40-nm stop-band width have been achieved at room temperature.
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