以异丙醇铝为原料,聚乙二醇(PEG1000)为络合剂,采用溶胶-凝胶法制备了纳米晶γ-Al2O3:Tb3+发光粉;并采用DTA/TG、XRD、TEM及荧光光谱对其进行了一系列表征.研究结果表明:采用溶胶-凝胶制备工艺,经800℃煅烧4 h,可以得到发光强度高的纳米晶γ-Al2O3:Tb3+发光粉;发光粉的最佳激发波长为251 nm,对应于Tb3+4f-5d跃迁;最佳掺杂浓度为5%(物质的量浓度,下同),在251 nm光激发下,最强的发射峰位于544 nm,可以用作绿色发光材料.
参考文献
| [1] | Esparza-Garcya A E;Garcya-Hipelito M;Aguilar Fmtis M A et al.Luminescent and morphological characteristics of Al2O3:Tb films deposited by spray pyrolysis using acetylacetonates as precumors[J].Journal of the Electrochemical Society,2003,150(02):H53-H56. |
| [2] | Martynez E;Garcya M;Ramos-Brito F et al.Characterization Of Al2O3:Eu3+ lumineacent coatings propared by spray pyrolysis technique[J].Physical Status Solidi B,2000,220:677-681. |
| [3] | Yasutaka Kondo;Katsuhisa Tanaka;Rikuo Ota;Tomoki Fujii;Yo-ichi Ishikawa .Time-resolved study of luminescence in soda-lime silicate glasses co-doped with Gd~(3+) and Eu~(3+)[J].Optical materials,2005(8):1438-1444. |
| [4] | Martinez-Martinez R;Garcia-Hipolito M;Ramos-Brito F;Hernandez-Pozos JL;Caldino U;Falcony C .Blue and red photoluminescence from Al2O3 : Ce3+: Mn2+ films deposited by spray pyrolysis[J].Journal of Physics. Condensed Matter,2005(23):3647-3656. |
| [5] | Serna R;Jimenez de Castro M;Chaos J A et al.Photoluminescence performance of pulsed-laser deposited Al2O3 thin filing with large erbium concentrations[J].Journal of Applied Physics,2001,90:5120-5125. |
| [6] | Xu W L;Zheng M J;Wu S et al.Effects of high-temperature annealing on structural and optical properties of highly ordered porous alumina membranes[J].Appllied Physics Letters,2004,85:43644366. |
| [7] | Iabisaka T;kurokawa Y;Makino T et al.Opticalproperfies of rare earth ion (Nd3+,Er3+ and Tb3+)-doped alumina films preperod by the solgel method[J].Optical Materials,2001,15:293-299. |
| [8] | Zawadzki M;Hreniak D;Wrzyszcz J et al.Pbotoluminescence and cathodoluminescence of Tb-dopod Al2O3-ZrO2 nanustructuras obtained by sol-gel method[J].Chemical Physics,2003,291(03):275-285. |
| [9] | Chang Hae Kim;Sang Mi Park;Joung Kyu Park .Combinatorial Synthesis of Tb-Activated Phosphors in the CaO-Gd_2O_3-Al_2O_3 System[J].Journal of the Electrochemical Society,2002(12):H183-H187. |
| [10] | Falcony C;Ortiz A;Dominguez M J et al.Luminescent chacacteristics of Tb doped Al2O3:Tb films deposited by spray pyrolysis[J].Journal of the Electrochemical Society,1992,139(01):267-271. |
| [11] | Iabizaka T;Nozaki R;Kurekawa Y .Tb3+ and Eu3+-doped alumina films prepared by sol-gel method under various conditions and sensitized luminescencc[J].Journal of Physics and Chemistry of Solids,2002,63:613-617. |
| [12] | 张吉林,洪广言.稀土纳米发光材料研究进展[J].发光学报,2005(03):285-293. |
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%