Local Piezoelectric Behavior of Potassium Sodium Niobate Prepared by a Facile Synthesis via Water Soluble Precursors - Senes, Nina (University of Sassari. Department of Chemistry and Pharmacy) ; Iacomini, Antonio (University of Sassari. Department of Chemistry and Pharmacy) ; Domingo Marimon, Neus (Institut Català de Nanociència i Nanotecnologia) ; Enzo, Stefano (University of Sassari. Department of Chemistry and Pharmacy) ; Mulas, Gabriele (University of Sassari. Department of Chemistry and Pharmacy) ; Cuesta-Lopez, Santiago (University of Burgos) ; Garroni, Sebastiano (University of Burgos)