Nwachuku, D.N. 2025. FIRST-PRINCIPLES INVESTIGATION OF THE ELECTRONIC STRUCTURE AND OPTICAL RESPONSE OF Ga2S3 AND Ga2Se3 CHALCOGENIDES. FUDMA JOURNAL OF SCIENCES. 9, 11 (Oct. 2025), 27–31. DOI:https://doi.org/10.33003/fjs-2025-0911-4018.