Similarly to CuGaO, α-AgGaO and α-AgAlO have the delafossite crystal structure while the structure of the corresponding β phases is similar to wurtzite (space group Pna2a). β-AgGaO is metastable and can be synthesized by ion exchange with a β-NaGaO precursor. The bandgaps of β-AgGaO and β-AgAlO (2.2 and 2.8 eV respectively) are indirect; they fall into the visible range and can be tuned by alloying with ZnO. For this reason, both materials are hardly suitable for solar cells, but have potential applications in photocatalysis.
Contrary to LiGaO, AgGaO can not be alloyed with ZnO by heating their mixture because of the Ag reduction to metallic silver; therefore, magnetron sputtering of AgGaO and ZnO targets is used instead.