DGIST Scholar: Strong conductivity enhancement of La-doped BaSnO3 transparent films on Al2O3 with the assistance of templated epitaxy for electromagnetic shielding in extreme environments

Department of Physics and Chemistry Semiconductor Energy Sensor Laboratory 1. Journal Articles

Strong conductivity enhancement of La-doped BaSnO3 transparent films on Al2O3 with the assistance of templated epitaxy for electromagnetic shielding in extreme environments

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Title: Strong conductivity enhancement of La-doped BaSnO3 transparent films on Al2O3 with the assistance of templated epitaxy for electromagnetic shielding in extreme environments

Issued Date: 2023-02

Citation: Ha, Youngkyoung. (2023-02). Strong conductivity enhancement of La-doped BaSnO3 transparent films on Al2O3 with the assistance of templated epitaxy for electromagnetic shielding in extreme environments. Nano Convergence, 10(1). doi: 10.1186/s40580-023-00355-9

Type: Article

Author Keywords: Al2O3 ; La-doped BaSnO3 ; Single-crystalline films ; Templated epitaxy ; Transparent conductors

Keywords: THIN-FILMS ; BUFFER LAYERS ; GROWTH ; SAPPHIRE

ISSN: 2196-5404

Abstract: Transparent La-doped BaSnO3 (BLSO) epitaxial films grown on expensive perovskites show promising conductive properties. However, BLSO films on Al2O3 have a higher sheet resistance by two orders of magnitude. In this research, the sheet resistance of BLSO films is recovered to that of the single-crystalline level by growing (111)-oriented BLSO epitaxial films on (0001)Al2O3 with the assistance of (111)BaZrO3/MgO template bilayer. Their intriguing transparent conductive properties, including high electromagnetic shielding effectiveness (~ 13.2dB at 10GHz) and high stability at 700°C, will promote stable optoelectronic applications in extreme environments with economic benefits. Graphical Abstract: [Figure not available: see fulltext.]. © 2023, The Author(s).