Abstract:The effect of N doping on the crystal structure, electronic, and optical properties of α-Bi2O3 and β-Bi2O3 has been studied in detail based with first principle calculations. The crystallographic features of Bi2O3 polymorphs are not substantially changed through N doping, whereas charge transfer from Bi to N results in large variations of charge density distribution. N-doped β-Bi2O3 exhibits improved thermal stability due to stronger Bi-N covalent bonds and lower defect formation energy, and the convenient pre… Show more
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