Functional oxides thin films are a class of materials which are embedded in a wide range of devices. Depending on the device/type of application, simple or complex oxide are used. We report on the properties of the WO3 and of several lead-free perovskite materials such as titanate-based (Ba(Ti0.8 Zr0.2)O3-x(Ba0.7 Ca0.3)TiO3 -BCTZ) and ferrite-based (BiFeO3-BFO; Y-doped BiFeO3- BYFO; LaFeO3- LFO) thin films growth by pulsed laser deposition (PLD). Applications in energy storage/generation, photonics, sensors, biology are discussed, depending on their properties as crystallinity, morphology, thickness.
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