利用微乳液法制备出ZnS∶Cu纳米微粒。XRD表明微粒粒径为3～5nm，且为立方晶型结构。在紫外吸收光谱中，ZnS∶Cu纳米微粒吸收峰蓝移。发射光谱表明ZnS∶Cu纳米微粒产生一个位于482nm的绿色发射带。
ZnS∶Cu nanoparticles were prepared in microemulsion at roomtemperature. X-ray diffraction analysis shows that the diameter of the particles is 3～5nm and the particles are cubic crystallites structure. Ultraviolet absorption demonstrates the increased bandgap due to quantum confinement. A green emission band at 482nm can be observed in PL spectrum.
参考文献
| [1] | Rama K M V;Friesner R A .[J].Journal of Chemical Physics,1991,95:8309. |
| [2] | Huang H H;Yan F Q;Kek Y M .[J].Langmuir,1997,13:172. |
| [3] | Spanhel L;Hnase M;Weller H et al.[J].Journal of the American Chemical Society,1987,109:5649. |
| [4] | Bhargava R N;Gallagher D;Hong X .[J].Physical Review Letters,1994,72:416. |
| [5] | 固体发光.固体发光[M].合肥:中国科学技术大学出版社,1976 |
| [6] | Fisher A G .[J].Journal of the Electrochemical Society,1963,110:733. |
| [7] | Que Wenxiu;Zhou Y;Lam Y L et al.[J].Applied Physics Letters,1998,73:2727. |
| [8] | Khosravi A A;Deshpands S K;Bhagwat U A et al.[J].Applied Physics Letters,1995,67(18):30. |
| [9] | 李丹,刘俊业,孟继武,窦凯,许武,孙聆东,李振鹏.掺杂Cu2+的ZnS纳米超微粒的荧光衰减[J].发光学报,1998(01):85-88. |
| [10] | Rossetti R;Hull R;Gibson J M et al.[J].Journal of Chemical Physics,1985,1:552. |
| [11] | Shionoya S.Luminescence of Inorganic Solids[M].edited by Goldberg P, Academic, New York,1966:229. |
| [12] | Curie.Luminescence in Crystals[M].Methuen & Co;London,1963:114. |
| [13] | Peka P;Schulz H .[J].Journal of Physical B,1994,193:57. |
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