dc.contributor.authorGoh, Phoi Chin
dc.contributor.authorYao, Kui
dc.contributor.authorChen, Zhong
dc.date.accessioned2013-11-01T07:10:16Z
dc.date.available2013-11-01T07:10:16Z
dc.date.copyright2012en_US
dc.date.issued2012
dc.identifier.citationGoh, P. C., Yao, K., & Chen, Z. (2012). Reaction mechanisms of ethylenediaminetetraacetic acid and diethanolamine in the precursor solution for producing (K, Na)NbO3 thin films with outstanding piezoelectric properties. The Journal of Physical Chemistry C, 116(29), 15550-15556.en_US
dc.identifier.urihttp://hdl.handle.net/10220/17225
dc.description.abstractAn understanding of the reaction mechanisms of ethylenediaminetetraacetic acid (EDTA) and diethanolamine (DEA) for producing solution-derived (K, Na)NbO3 (KNN) thin films with outstanding piezoelectric properties and low leakage current is developed. X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), and nuclear magnetic resonance spectroscopy (NMR) were used to analyze the interactions among EDTA, DEA, and metal cations in both precursor solutions and amorphous films. XPS analyses showed that the oxidation states of potassium, niobium, and oxygen in KNN amorphous film were enhanced with addition of EDTA and DEA in the precursor solution, which shifted closer to the oxidation states in the perovskite phase of the resulting KNN oxide film. FTIR analyses indicated that EDTA and DEA formed dative bonds with the nonhydrated potassium and sodium acetate after pyrolysis process at 330 °C while NMR analyses showed that such interactions could have occurred in the precursor solution. NMR analyses also indicated that DEA could have chelated niobium precursor. It is proposed that EDTA and DEA acted as a “bridge” that linked the metal precursors in the solution, which is critical to suppressing the volatilization of the metal cations, for achieving the reported outstanding electrical properties of the resulting KNN films.en_US
dc.language.isoenen_US
dc.relation.ispartofseriesThe journal of physical chemistry Cen_US
dc.subjectDRNTU::Science::Chemistry::Physical chemistry
dc.titleReaction mechanisms of ethylenediaminetetraacetic acid and diethanolamine in the precursor solution for producing (K, Na)NbO3 thin films with outstanding piezoelectric propertiesen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.identifier.doihttp://dx.doi.org/10.1021/jp301067g


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