The luminescent properties of gallium oxide (Ga2 O3) doped with rare-earth erbium (Er3+) have gained significantattention due to their potential in optoelectronic and semiconductor applications. In this study, five Ga2 O3 bulk materials with varying erbium doping concentrations were prepared using solid-phase sintering. The crystal structure, micro-morphology, fluorescence characteristics, and the effect of doping concentration were systematically examined. The results show that Er3+ substitutes Ga3+and also forms a new erbium-gallium garnet (Er3 Ga5 O12) phase. As the doping concentration increases, the content of the garnet phase rises, leading to a linear increase in luminescence intensity. However, the sample with 1.00at% erbium doping shows lower red-green luminescence intensity compared to the 0.75at% sample dominated by the garnet phase, indicating that the erbium-gallium garnet phase offers superior fluorescence performance in these regions compared to the substitutional doping phase.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |