Influence of annealing temperature on structural and optical properties of Lu2O3:Eu3+, Tb3+ transparent films

被引：9
作者：
de Jesus Morales-Ramirez, Angel [1 ]
Garcia-Murillo, Antonieta [1 ]
de Jesus Carrillo-Romo, Felipe [1 ]
Garrido-Hernandez, Aristeo [1 ,2 ]
Garcia-Hernandez, Margarita [3 ]
机构：
[1] Inst Politecn Nacl, CIITEC IPN, Mexico City 02250, DF, Mexico
[2] Univ Tecnol Tecamac, Div Nanotecnol, Sierra Hermosa 55740, Edo De Mexico, Mexico
[3] Univ Autonoma Metropolitana, Dept Ciencias Nat, Unidad Cuajimalpa, Mexico City 11850, DF, Mexico
来源：
MATERIALS RESEARCH BULLETIN | 2015年 / 70卷
关键词：
Ceramics; Sol-gel chemistry; X-Ray diffraction; Luminescence; Phosphors; LUMINESCENT PROPERTIES; PHOTOLUMINESCENCE; NANOCRYSTALLINE; TRANSFORMATION; NANORODS; SITES;
D O I：
10.1016/j.materresbull.2015.04.033
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High-optical quality Lu2O3:Eu3+ 5 mol%, X Tb3+ (X=0-0.04 mol%) thin films were prepared by the sol-gel process and dip-coating technique. The procedure was as follows: lutetium, europium and terbium nitrates were used as precursors, and ethanol as a solvent. Etylenglycol (EG) was added as a sol stabilizer, and the pH was adjusted by acetic acid. After 10 dipping-cycles, followed by an annealing process (600-900 degrees C) for 1 h, transparent, smooth and crack-free films (ra = 8-9 nm) were formed. The X-ray diffraction (XRD) results showed crystallized films into the cubic structure at 800 degrees C. The ellipsometry results showed that the thickness of the films varied from 1 to 1.4 mu m at 1000 and 600 degrees C, respectively. Finally, the films presented a typical Eu3+ red emission at 611 nm (D-5(0) -> F-7(2)); furthermore, the effect of the Tb3+ content showed that the highest emission intensity corresponded to the lower Tb3+ content. (C) 2015 Elsevier Ltd. All rights reserved.
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页码：173 / 178
页数：6
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