“…[1][2][3][4][5][6][7][8][9][10] These oxides allow ionic substitution on both A and B sites, which could promote intriguing electronic properties. For example, BaSnO 3 (BSO), a perovskite stannate, is a semiconductor with an indirect band gap in the range of from 3.1 to 3.4 eV [11,12] and crystallizes in a cubic structure with the space group Pm3m [ Fig.…”