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

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.

SUBMITTER: Ha Y

PROVIDER: S-EPMC9931985 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature

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

Ha Youngkyoung Y Lee Shinbuhm S

Nano convergence 20230215 1

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. T ...[more]

PMID: 36790607

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