Potassium lithium niobate films derived from aqueous precursor solution

Potassium lithium niobate (KLN) films, which were prepared using an aqueous precursor solution, were characterized in terms of crystallinity, morphology, and electrical properties; 1.0 mum thick KLN films free from cracks and pores could be prepared on MgO(100), Pt(100)/MgO(100), and Pt(111)/Ti/SiO2/Si substrates by multiple coating and heating at 700 degreesC, The films were composed of compact grains and had sintered textures. The films crystallized with (310) and (540) preferred orientations on MgO(100) and Pt(100)/MgO(100) substrates, The KLN film prepared on Pt(100)/MgO(100) substrate had epsilon' = 136 and tan delta = 0.026 at 1 kHz.