Ab’initio studies of the structural and electronic properties for single-walled armchair MgONT, SiCNTs and ZnONTs for next generations’ optoelectronics: Ab’initio studies of the structural and electronic properties for single-walled armchair magnesium oxide nanotubes, silicon carbide nanotubes and zinc oxide nanotubes for next generations’ optoelectronics. Gadau J Pure Allied Sci. 2022;1(2):160-165. doi:10.54117/gjpas.v1i2.42