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(100)‐Orientation of Pseudocubic Perovskite‐Type LaNiO 3 Thin Films on Glass Substrates via the Sol–Gel Process
Author(s) -
Miyake Shinichi,
Yamamoto Keisuke,
Fujihara Shinobu,
Kimura Toshio
Publication year - 2002
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2002.tb00206.x
Subject(s) - lanio , materials science , thin film , chemical engineering , sol gel , substrate (aquarium) , perovskite (structure) , morphology (biology) , composite material , orientation (vector space) , surface energy , nanotechnology , optoelectronics , oceanography , genetics , geometry , mathematics , geology , biology , dielectric , engineering , ferroelectricity
(100)‐oriented, perovskite‐type LaNiO 3 thin films were prepared on SiO 2 glass substrates by the sol–gel method. Effects of thermal processing on the orientation, surface morphology, and electrical properties of the films were investigated. The nearly complete (100)‐orientation was achieved by drying the films at temperatures above 350°C before a final heat treatment at 700°C. It was the key to heat the substrate from the other side to obtain the oriented films. A possible mechanism of the orientation is proposed on the basis of surface energies of the films and the substrates and the interfacial energy between them.