Optical properties Electronic structure 3 Energy gap 3 Density functional theory 2 Electronic properties 2 Morphology 2 Semiconductor doping 2 Solar cells 2 Wide band gap semiconductors 2 Agglomeration 1 Anti-bacterial activity 1 Antibacterial properties 1 Antibacterial tests 1 Antibiotics 1 Atmosphere modeling 1 Blue emission bands 1 Bulk transition 1 Ca-doped α-Ga2O3 1 Calcium 1 Calculations 1 Carbon nitride 1 Carbonitrides 1 Charge density distributions 1 Charge transfer 1 Chemical compositions 1 Circumstellar 1 Circumstellar matter 1 Circumstellar matters 1 Co3O4 1 Collective effects 1