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Nano Convergence
Fig. 4 | Nano Convergence

Fig. 4

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

Fig. 4

Transmittance of \({\mathrm{BLSO}}_{(0001){\mathrm{Al}}_{2}{\mathrm{O}}_{3}}^{{\mathrm{BaZrO}}_{3}/\mathrm{MgO}}\). The optical images on top of figure show that we can see a “DGIST” logo over film and bare Al2O3 substrate, indicating that the transparency of our \({\mathrm{BLSO}}_{(0001){\mathrm{Al}}_{2}{\mathrm{O}}_{3}}^{{\mathrm{BaZrO}}_{3}/\mathrm{MgO}}\) films is as high as that of the substrate. All BLSO epitaxial films show high transmittances (> 75%) in the visible region and suppressed transmittances in the infrared region. The fundamental absorption edges of \({\mathrm{BLSO}}_{(0001){\mathrm{Al}}_{2}{\mathrm{O}}_{3}}^{{\mathrm{BaZrO}}_{3}/\mathrm{MgO}}\) and \({\mathrm{BLSO}}_{(001)\mathrm{MgO}}\), at which the transmittance drops sharply at ultraviolet wavelengths, are located at shorter wavelengths than that of \({\mathrm{BLSO}}_{(001){\mathrm{SrTiO}}_{3}}\). The dashed lines indicate the transmittances of Al2O3, MgO, and SrTiO3 substrates

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