ɡˈæliəm ɹˌoʊmən θɹˈiː ˈɑːksaɪd hˈæzbiːn stˈʌdid fɔːɹ jˈuːsɪdʒ æz pˈæsɪv kəmpˈoʊnənts ɪn lˈeɪzɚz, fˈɑːsfɚz, ænd lˌuːmɪnˈɛsənt mətˈɪɹiəlz æz wˈɛl æz ˈæktɪv kəmpˈoʊnənts fɔːɹ ɡˈæs sˈɛnsɚz, pˈaʊɚ dˈaɪoʊdz, ænd pˈaʊɚ tɹænzˈɪstɚz.
Gallium(III) oxide has been studied for usage as passive components in lasers, phosphors, and luminescent materials as well as active components for gas sensors, power diodes, and power transistors.