高级检索
无机材料学报

无机材料学报 >

2008 , Vol. 23 >Issue 4: 824 - 828

DOI: https://doi.org/10.3724/SP.J.1077.2008.00824

研究论文

沉淀剂对共沉淀法制备 Lu2O3发光粉体形貌的影响

  • 施鹰 ,
  • 陈启伟 ,
  • 施剑林
展开
  • (1. 上海大学材料科学与工程学院电子信息材料系, 上海 200072; 2. 中国科学院上海硅酸盐研究所, 上海 200050)

收稿日期: 2007-08-20

  修回日期: 2007-11-23

  网络出版日期: 2008-07-20

收起

Effect of Precipitants on Morphologies of Lu2O3 Phosphors by Co-precipitation Process

  • SHI Ying ,
  • CHEN Qi-Wei ,
  • SHI Jian-Lin
Expand
  • (1. Department of Electronics and Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China; 2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 China)

Received date: 2007-08-20

  Revised date: 2007-11-23

  Online published: 2008-07-20

Fold

摘要

研究了共沉淀法制备Eu3+掺杂氧化镥(Lu2O3)发光粉体过程中三种不同的沉淀剂(氨水、碳酸氢铵以及NH3·H2O+NH4HCO3两者的混合溶液)对所得粉体形貌的影响. 通过差热热重质谱联用(DTA-TG-MS)和红外光谱研究了不同沉淀剂所得沉淀前驱体的热分解行为, 结合显微结构观察、粒度分布和比表面积测试, 对三种沉淀剂影响Lu2O3晶粒尺寸和团聚状态的规律进行了探讨. 研究发现: 采用NH3·H2O+NH4HCO3混合沉淀剂得到的Lu2O3粉体具有最佳的显微结构和粒径分布状态, 沉淀前驱体经1000℃煅烧2h, 粉体的平均晶粒尺寸为35nm, 中位粒径(D50)为0.48μm.

关键词： 沉淀剂; 氧化镥; 粉体; 共沉淀法

本文引用格式

施鹰 , 陈启伟 , 施剑林 . 沉淀剂对共沉淀法制备 Lu2O3发光粉体形貌的影响[J]. 无机材料学报, 2008 , 23(4) : 824 -828 . DOI: 10.3724/SP.J.1077.2008.00824

Abstract

Eu3+-doped Lu2O3 phosphor nanopowders were synthesized by co-precipitation process with NH3·H2O, NH4HCO3 and the mixed solution of NH3·H2O and NH4HCO3 as the precipitants, respectively. Effects of precipitants on microstructures and properties of obtained Lu2O3 phosphor were investigated on study of decomposition behavior of precipitate precursor by means of DTA-TG-MS and FTIR spectra. The morphologies and particle size distributions of obtained Lu2O3 phosphors were characterized. It is found that powders from the mixed precipitant method exhibits best microstructural morphology with weak agglomeration state and particle size distribution. After being calcined at 1000℃ for 2h, the average crystalline size of Lu2O3 reaches 35nm with medium particle size (D50) of 0.48μm.

Key words： precipitant; lutetia; powder; co-precipitation processing

参考文献

[1] Nagarkar V V, Tipnis S V, Miller S R, et al. IEEE Trans. Nucl. Sci., 2003, 50 (3): 297--300.
[2] Lempicki A, Brecher C, Szupryczynski P, et al. Nucl. Instru. Meth. Phys. Res. A, 2002, 488: 579--590.
[3] Lu J, Takaichi K, Uematsu T, et al. Appl. Phys. Lett., 2002, 81 (23): 4324--4326.
[4] Takaichi K. Phys. Stat. Sol. (a), 2005, 202 (1): R1--R3.
[5] Zych E, Hreniak D, Strek W, et al. J. Alloys Comp., 2002, 341: 391--394.
[6] Zych E. Opt. Mater., 2001, 16: 445--452.
[7] Zych E, Trojan-Piegza J, Kepinski L. Sensor and Actuator B, 2005, 109: 112--118.
[8] 迪安主编. 兰氏化学手册, 第13版. 科学出版社, 1991.
[9] Chen Q W, Shi Y, An L Q, et al. J. Euro. Ceram. Soc., 2007, 27: 191--197.
Options
文章导航

/

〈 〉