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The photoluminescence of Mn2+ in Zn0.83Mn0.17Se and ZnSe/Zn0.84Mn0.16Se superlattics was investigated at different pressures. The 4T1→6A1 transition of Mn2+, which shows different pressure dependence in bulk materials and superlattics, was observed. The pressure coefficients obtained from them are -42.4 and -29.5 peV/Pa, respectively. The theoretical calculation for pressure coefficient of the emissions in Zn0.83Mn0.17Se gave the result -38.3 peV/Pa, which is almost consistent with experiment. Further analysis of pressure dependence for emission intensity confirms that the emission characteristic of Mn2+ was mainly affected by near crystal field. Their different properties mainly root in different band structures and strains in ZnSe/Zn0.84Mn0.16Se superlattics.
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| 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 |
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