Zhou, Yuan and Park, Chee-Sung and Wu, Chun-Hsien and Maurya, Deepam and Murayama, Mitsuhiro and Kumar, Ashok and Katiyar, R. S. and Priya, Shashank (2013) Microstructure and surface morphology evolution of pulsed laser deposited piezoelectric BaTiO3 films. Journal of Materials Chemistry C, 1 (39). pp. 6308-6315. ISSN 2050-7526

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Abstract

In this paper, we analyze and elucidate the microstructure and surface morphology evolution of the piezoelectric BaTiO3 films grown by pulsed laser deposition on platinized silicon substrates. The films exhibited a columnar structure where the surface morphology evolved from a pyramid to star-like to hexagram shape with (111)-preferred orientation and increasing film thickness. In each column, a twin lamellae structure was formed that was found to enhance the lateral growth and coalescence of the grains. The high stability along the reentrant angle of the twin lamellae controlled the competition between the columnar growth and their coarsening. We present a growth model for BaTiO3 films and demonstrate the correlation of the growth mode and lamella twins during morphological evolution.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier.
Subjects:	Materials Science Applied Physics/Condensed Matter
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	09 Jul 2020 10:12
Last Modified:	09 Jul 2020 10:12
URI:	http://npl.csircentral.net/id/eprint/3122

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