Influence of viscosity and ionic concentration on morphology of PLZT thin films

PLZT thin films were prepared by a dip-coating process using Pechini's meth od. The PLZT solution was obtained from the mixture of the cation solutions . The viscosity of the solution was adjusted in the range of 20-40 cP, whil e the ionic concentration was adjusted in the range of 0.1 and 0.2 M. PLZT solutions were deposited on Si (1 0 0) substrate with withdrawal speed at 5 mm/min. The coated substrates were thermally treated with heating rate of 1 degreesC/min up to 300 and 5 degreesC/ min up to 650 degreesC in order to obtain homogeneous and crack free films. The influence of viscosity and io nic concentration on crystallization and morphology of PLZT (9/65/35) thin film will be discussed. (C) 2001 Elsevier Science B.V. All rights reserved.