Highly uniform Gd(OH)3 and Gd2O3:Eu3+ hexagram-like microcrystals: glucose-assisted hydrothermal synthesis, growth mechanism and luminescence property

被引:24
作者
Xing, Guangjian [1 ]
Guo, Qiyu [1 ]
Liu, Qingjun [2 ]
Li, Yongliang [3 ]
Wang, Yi [2 ]
Wu, Zhenglong [3 ]
Wu, Guangming [1 ]
机构
[1] Beijing Inst Petrochem Technol, Coll Mat Sci & Engn, Beijing 102617, Peoples R China
[2] Beijing Inst Petrochem Technol, Dept Math & Phys, Beijing 102617, Peoples R China
[3] Beijing Normal Univ, Analyt & Testing Ctr, Beijing 100875, Peoples R China
关键词
Optical properties; X-ray methods; Gd2O3; Chemical preparation; LARGE-SCALE SYNTHESIS; UP-CONVERSION; PHOTOLUMINESCENCE PROPERTIES; HOLLOW SPHERES; NANOPARTICLES; NANOSTRUCTURES; NANOCRYSTALS; NANOWIRES; ROUTE; MICRORODS;
D O I
10.1016/j.ceramint.2013.11.110
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Monodispersed and uniform Gd(OH)(3) microcrystals with novel hexagram-like morphology have been successfully prepared through a simple and green hydrothermal process with the assistance of glucose. The results of control experiments revealed that the glucose concentration in the reaction system was an important factor, which affected the morphology of the Gd(OH)(3) microcrystals significantly. On the basis of time-dependent experiments, the growth mechanism of the Gd(OH)(3) hexagrams was discussed. Furthermore, the Gd2O3 and Eu3+-doped Gd2O3 hexagram-like microcrystals, inheriting the Gd(OH)(3) precursors' morphology, were obtained during a direct annealing process in air. The corresponding Gd2O3:Eu3+ hexagram-like microcrystals exhibit strong red emission pertaining to the D-5(0)-> F-7(2) transition of the Eu3+ ions under UV light, which have potential applications in novel optoelectronic devices. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码:6569 / 6577
页数:9
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