1997 Volume 105 Issue 1221 Pages 449-451
Ba2NaNb5O15 (BNN) thin films were prepared on Pt and fused quartz substrated using the sol-gel process with Ba(CH3COO)2, NaNO3 and Nb(O(CH2)3CH)5 as starting materials and CH3COOH and CH3OC2H4OC2H4OH as solvents.
BNN single-phase thin films, prepared using the heat treatment at 800°C for 1h, were optically transparent down to 30nm. A relatively good ferroelectric hysteresis loop was observed, from which the remanent polarization of 3.5μC/cm2 and the coercive field of 21.6kV/cm were estimated.
Study of the electrical and optical properties of the BNN thin films is now in progress.
