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

Autor: Youngkyoung Ha, Shinbuhm Lee
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Nano Convergence, Vol 10, Iss 1, Pp 1-10 (2023)
Druh dokumentu: article
ISSN: 2196-5404
DOI: 10.1186/s40580-023-00355-9
Popis: 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 (~ 13.2 dB at 10 GHz) and high stability at 700 °C, will promote stable optoelectronic applications in extreme environments with economic benefits. Graphical Abstract
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