Thi Thu Hien Le, Van Tuan Chu and Van Tuan Pham 2023. Fabrication, structural characteristics, and influence of Bi³⁺ doping concentration on UV-vis spectra of Bi³⁺:SnO₂ nanocomposite materials. Vietnam Journal of Science, Technology and Engineering. 65, 1 (Mar. 2023), 9-13. DOI:https://doi.org/10.31276/VJSTE.65(1).09-13.