Okoye, I.F. (2026) “Hall Effect Measurement and Current–Voltage Features of Roselle Plant (Hibiscus Sabigriffa) Dye-Doped Nano Crystalline-TiO2 and the Effect of Sensitization on Dye Sensitized Solar Cell”, Nigerian Journal of Physics, 35(3), pp. 29–36. doi:10.62292/njp.v35i3.2026.612.