Complementary evaluation of potential barriers in semiconducting barium titanate by electrostatic force microscopy and capacitance–voltage measurements. (June 2022)

• Record Type: Journal Article
• Authors: Prohinig, Jennifer M.; Hütner, Johanna; Reichmann, Klaus; Bigl, Stephan
• Is Part Of: Scripta materialia. Number 214(2022)
• Publication Date: 2022-06
• Subjects: Electrostatic forcce microscopy -- Grain boundary potential barriers -- PTCR ceramics -- BaTiO3; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2022.114646
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Electrostatic force microscopy (EFM) was used to directly image the impact of SiO2 content variations on the grain boundary potential barriers in semiconducting BaTiO3 -based ceramics. The grain boundary barriers were shown to be significantly thinner and more pronounced as the amount of SiO2 was increased from 0 to 5 mol%. The EFM results were confirmed by capacitance–voltage (C–V) measurements which proofs the accuracy of both methods and highlights their importance for gaining a better understanding of the interrelations between material composition and electrical properties. Graphical abstract: Image, graphical abstract