本文报道了用燃烧法制备的纳米（5～100nm）Gd2O3：Eu和Y2O3：Eu荧光粉，对它们的晶体结构和光致发光性质进行了研究．结果表明，纳米Gd2O3：Eu和Y2O3：Eu的光致发光性质与常规的Gd2O3：Eu和Y2O3：Eu的性质有很大的差别，纳米Gd2O3：Eu和Y2O3：Eu表现出很强的介观效应．对实验结果进行了初步的探讨．
The structure, TEM morphology and photoluminescence(PL) of nanocrystallites Ln2O3;Eu (Ln=Gd, Y) phosphers were studied. Samples were prepared by glycerin(G)-nitrate(N) sollltion combustion synthesis. The particle size of Ln2O3 could be controlled by different ratio of G/N.the influences of mesoscopic effect on PL of Ln2O3: Eu, such as the red shift of the excitation peak,the broading of emission peaks, were discussed.
参考文献
| [1] | Bhargava R N, Gallagher D, Hong X, et al. Phy. Rev. Lett., 1994, 72: 416--419 2 裴秩慧, 刘行仁. 发光学报, 1996, 17 (1): 52--57 3 Chick L A, Pederson L R, Maupin G D, et al. Mat. Lett., 1990, 10: 6--12 4 Tao Ye, Zhao Guiwen, Zhang Weiping, et al. Mat. Res. Bull., 1997, 32 (5): 501--506 5 张立德, 牟季美. 纳米材料学. 沈阳: 辽宁科学技术出版社, 1994. 184--185 6 吉林物理研究所, 中国科学技术大学编. 固体发光. 1976. 61 7 Ozawa L, Forest H, Mjaffe P, et al. J. Electrochem. Soc., 1971, 118: 482 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%