A novel aqueous solution method for K3Li2Nb5O15 film and powder

Authors

Zhenxiang Cheng, University of WollongongFollow
Xiaolin Wang, University of WollongongFollow
Kiyoshi Ozawa, National Institute for Materials Science, JapanFollow
Hideo Kimura, National Institute for Materials Science, Japan

RIS ID

21868

Publication Details

Cheng, Z, Wang, X, Ozawa, K & Kimura, H (2007), A novel aqueous solution method for K3Li2Nb5O15 film and powder, Journal of Crystal Growth, 307(2), pp. 353-357.

Abstract

K₃Li₂Nb₅O₁₅ (KLN) is fabricated from a peroxide precursor. In the fabrication of the peroxide precursor solution, a hydrogen peroxide aqueous solution (H₂O₂) reacts with niobium ethoxide, potassium ethoxide, and lithium ethoxide in ethanol solution with a K:Li:Nb ratio of 3:2:5 to form the precursor solution. XRD and Raman spectra of the heat-treated powder show that the pure K₃Li₂Nb₅O₁₅phase can form at a temperature as low as 500^°C. Ferroelectric KLN thin film was also fabricated from this clear precursor solution by spin coating, and it displays ferroelectric polarization hysteresis behavior. It is demonstrated that the solution is a novel precursor for KLN with the advantages of low sintering temperature and simplicity.