金属学报  2008, Vol. 44 Issue (9): 1149-1152

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(Y, Gd)2O3:Eu3+纳米粒子制备及光谱特性

郭易芬;马伟民;闻雷;沈世妃;刘晶;王华栋;尹凯

沈阳化工学院材料科学与工程学院

PREPARATION AND CHAIACTERISTICS OF (Y,Gd)2O3:Eu3+ NANOPARTICLES

WeiMin Ma

沈阳大学

郭易芬; 马伟民; 闻雷; 沈世妃; 刘晶; 王华栋; 尹凯 . (Y, Gd)2O3:Eu3+纳米粒子制备及光谱特性[J]. 金属学报, 2008, 44(9): 1149-1152 .
, , , , , , . PREPARATION AND CHAIACTERISTICS OF (Y,Gd)2O3:Eu3+ NANOPARTICLES[J]. Acta Metall Sin, 2008, 44(9): 1149-1152 .

摘要 参考文献 相关文章 Metrics 全文: PDF(669 KB)   摘要: 用湿化学共沉淀法制备了(Y, Gd)2O3:Eu3+纳米粒子. 用XRD, TEM, SEM及差示/热重分析 (DSC/TG)手段对粉体进行了表征. 用荧光光度计分析了样品的激发光谱和发射光谱. 结果表明： 在煅烧温度为800 ℃保温2 h时, 合成出近似球形、粒径均匀且分散性好的(Y, Gd)2O3:Eu3+纳米粒 子, 一次颗粒尺寸约为20 nm. 样品在波长为612.0 nm监控光下激发, 出现235和250 nm两个激发 峰, 分别为(Y, Gd)2O3基质吸收和Eu3+迁移态(CTS)吸收造成的. 两个波长激发下的发射光谱峰强 度前者高于后者. 当掺杂Eu3的摩尔浓度为3%时, 发射光谱对应5D07F2 能级跃迁的相对峰强度 最大, 当Eu3+掺杂的摩尔浓度为7%时, 相对峰强度反而降低, 这是由于Eu3+的浓度猝灭造成的. 关键词 ： 闪烁体,  共沉淀法,  (Y,  Gd)2O3:Eu3+纳米粒子     Abstract：In this paper, the (Y,Gd)2O3:Eu3+ superfine powders were prepared by co-precipitation method and ammonia was employed as precipitating agent. The means of XRD 、TEM、 SEM and DSC/TG were used to analyze the morphology and characteristics of the powders. The excitation spectrum and emission spectrum of the samples were analysed by the fluorophotometer. The results show that the powders are spherical particles with uniform size distribution of 20nm in the case of the powders were calcined at 800℃ for 2h. The sample has two excitation peaks at 235nm and 250nm when the monitoring wavelength is 612nm. The two peaks are caused by the Gd2O3 medium absorption and the CTS absorption of Eu3+ respectively. The intensity of the emission spectrum with the exciting at 235nm is higher than excited at 250nm. When the molar concentration of corporation Eu3+ is 3%, the emission peak of 5D0→7F2 transition states of the emission spectrum is the strongest, and when the corporation Eu3+ is 7%, intensity of the emission peak decreased, which is due to the concentration quenching. Key words： 收稿日期: 2008-01-22      ZTFLH:  O614.33   服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 郭易芬 马伟民 闻雷 沈世妃 刘晶 王华栋 尹凯 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y2008/V44/I9/1149 [1]Ba X W,Bai C H,Zhang X Y.Mater Rev,2005;19(8): 25 (巴学巍，柏朝晖，张希艳．材料导报，2005；19(8)：25) [2]Steven J D,Charles D G,Robert J L,James S V,David M H,Robert J R,Michael J L.Nucl Instrum Methods Phys Res,2003;505A:68 [3]Kim Y K,Kim H K,Cho G,Kim D K.Nucl Instrum Methods Phys Res,2004;225B:392 [4]Chen Q W,Shi Y,Shi J L.J Mater Sci Eng,2005;23: 128 (陈启伟，施鹰，施剑林．材料科学与工程学报，2005；23：128) [5]Vu N,Anh T K,Yi G C,Streek W.J Lumin,2007;122- 123:776 [6]Fu Y P.J Mater Sci,2007;42:5165 [7]Bazzi R,Flores M A,Louis C,Lebbou K,Zhang W,Du- jardin C,Roux S,Mercier B,Ledoux G,Bernstein E,Per- fiat P,Tillement 0.J Colloid Interface Sci,2004;273: 191 [8]Silver J,Withrall R,Lipman A,Ireland T G,Fern G R.J Lumin,2007;122-123:562 [9]Joffin N,Dexpert-Ghys J,Verelst M,Baret G,Garcia A. J Lumin,2005;113:249 [10]Roh H S,Kang Y C,Park H D,Park S B.Appl Phys, 2003;76A:241 [11]Olivia A G,Jessica O.Opt Mater,2006;29:24 [12]Lee M H,Oh S G,Yi S C.J Colloid Interface Sci,2000; 226:65 [13]Xu X R,Su M Z.Luminescence and LuminesCence Mate- rials.Beijing:Chemical Industry Press,2004:307 (徐叙珞，苏勉曾．发光学与发光材料．北京：化学工业出版社，2004：307) [14]Sun J Y,Du H Y.Materials of Solid-State Luminescence. Beijing:Chemical Industry Press,2003:160 (孙家跃，杜海燕．固体发光材料．北京：化学工业出版社，2003：160) [1] 朱红艳,马伟民,闻雷,管仁国,马雷,吴南. (Y, Gd)2O3∶Eu3+纳米粒子制备过程中的合成动力学[J]. 金属学报, 2012, 48(6): 671-677. [2] 童剑 黄华 袁广银 丁文江. 准晶增强的Mg-Zn-Al-(Y)合金热压缩变形行为[J]. 金属学报, 2011, 47(12): 1520-1526. [3] 马伟民; 孙旭东; 杨化仁; 闻雷; 管仁国; 李喜坤 . 真空烧结法制备ZrO2(Y2O3)/Al2O3复合材料[J]. 金属学报, 2006, 42(4): 431-436 . [4] 刘长清;于力;于志明;金柱京;吴维(?). 稀土钇改性离子镀Ti(Y)N膜与A3钢基材界面的结构特性[J]. 金属学报, 1991, 27(4): 21-25. Viewed Full text Abstract Cited   Shared      Discussed