Multiple choice Compound used in deep ultraviolet optoelectronics is aluminium isopropoxide aluminium magnesium boride aluminium nitrate aluminium nitride Reveal answer Fill a bubble to check yourself D Correct answer Explanation Aluminium nitride (AlN) is a nitride of aluminium. Its wurtzite phase (w-AlN) is a wide band gap (6.2 eV) semiconductor material, giving it potential application for deep ultraviolet optoelectronics.