Single-crystalline transparent and conductive oxide films with the perovskite structure: Sb-doped SrSnO3.

Perovskite-type transparent and conductive oxide films, Sb-doped SrSnO₃ (SSSO), were grown on SrTiO₃(001) substrates by the pulsed laser deposition method. It is revealed that the films can be grown at relatively lower temperatures and show high single crystallinity with a cubic perovskite structure with lattice constant of 4.036 Å. These films show good optical transmittance in the visible range, with the direct allowed band gap of 4.53 eV, and behave as an n-type semiconductor with resistivity of 23 mΩ cm at room temperature. The effect of growth temperature on structural, electrical, and optical properties of the SSSO films was probed, and a diode based on n-SSSO/p-La_0.67Ca_0.33MnO₃ structure was also demonstrated. [ABSTRACT FROM AUTHOR]