Role of morphological characteristics on the conductive behavior of LaNiO3 thin films
Abstract: LaNiO3 (LNO) thin films were synthesized via the polymeric precursor method and sintered using conventional and microwave heating sources. The samples were characterized by structural morphological and electrical techniques. The crystalline structure was analyzed by X-ray diffraction and indicated rhombohedral perovskite phase in both films sintered using conventional and microwave heating. The films morphology was evaluated by scanning and transmission electron microscopy, and atomic force microscopy, and the results point out that microwave heating exerts direct influence on the morphological characteristics of LNO films contributing towards the change in the grain size distribution, porosity and roughness. Conductivity was also investigated through four-probe measurements, which pointed out a conductive and ohmic behavior of the LNO thin films prepared via the polymeric precursor method where a direct relationship was found between the morphological characteristics and the electrical properties of LNO film. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
O Laboratório Aberto de Interatividade para Disseminação do Conhecimento Científico e Tecnológico (LAbI), vinculado à Universidade Federal de São Carlos (UFSCar), é voltado à prática da divulgação científica pautada na interatividade; nas relações entre Ciência, Arte e Tecnologia.
Writers: Valmor R. Mastelaro; Sérgio C. Zílio; Luis F. da Silva; Pedro I. Pelissari; Maria I.B. Bernardi; Jacques Guerin; Khalifa Aguir Keywords: SrTi1−xFexO3 thin films; Ozone gas sensor; Nanostructure; Electron beam evaporation Abstract: We report […]
Optical and transport properties correlation driven by amorphous/crystalline disorder in InP nanowires Abstract: Indium phosphide nanowires with a single crystalline zinc-blend core and polycrystalline/amorphous shell were grown from a reliable route without the use of hazardous […]
Writers: P.P. Ortega and L.S.R. Rocha and C.C. Silva and M. Cilense and R.A.C. Amoresi and E. Longo and A.Z. Simões Keywords: A. Films; C. Electrical properties; C. Magnetic properties; E. Functional applications Abstract: Heterostructured thin films of […]