Abstract
We report that (La0.07Ba0.93)SnO3 films grown epitaxially on SrTiO3(001) substrates by laser ablation at 760°C show a cubic perovskite structure of lattice constant 4.121Å, excellent optical transmittance in the visible range, and a weak metallic behavior with low resistivity of about 4mΩcm within 10–300K. The transparent perovskite oxide films are n-type conductors, with carrier concentration and mobility at room temperature of about 2×1021cm−3 and 0.69cm2∕Vs, respectively, and a direct allowed band gap of 4.02eV. The effect of deposition temperature on structural, optical, and electric properties of the Sb-doped Ba(Sn0.93Sb0.07)O3 films was also demonstrated.
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