Sol-gel synthesis and up-conversion luminescence of GdPO_4-Gd_3PO_7: Yb~(3+), Ln~(3+) (Ln = Er, Ho, Tm) phosphor

Rosas Camacho A.; Carrillo Romo F. de J.; Garcia Murillo A.; Oliva J.; Garcia C. R.

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Sol-gel synthesis and up-conversion luminescence of GdPO_4-Gd_3PO_7: Yb~(3+), Ln~(3+) (Ln = Er, Ho, Tm) phosphor

机译：GdPO_4-Gd_3PO_7的溶胶-凝胶合成和上转换发光：Yb〜（3+），Ln〜（3+）（Ln = Er，Ho，Tm）荧光粉

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This work reports the structural, morphological and luminescent properties of GdPO4-Gd-3 PO7:Yb3+, Ln(3+) (Ln = Er, Ho, Tm) phosphors which have been synthesized by Pechini sol-gel process. The XRD patterns indicated that all the samples are crystalline and have a mixture of monoclinic monazite and monoclinic phases. Some samples were synthesized with ammonium hydroxide (NH4OH) and had better crystallinity than these synthesized without NH4OH. The up-conversion emissions were obtained under excitation at 967 nm. According to our results, the color emission was tuned from red to green by increasing the Yb3+ concentration from 5 mol% to 20 mol%. Moreover, the use of NH4OH to synthesize the samples doped with 20 mol% of Yb3+ enhanced their green emission band approximate to 3 times. The results reveal that doping the GdPO4-Gd3PO7 particles with rare earths produce an up-conversion emission which can be useful for the fabrication of luminescent coatings or lighting devices. (C) 2018 Elsevier B.V. All rights reserved.

机译：这项工作报告了通过Pechini溶胶-凝胶法合成的GdPO4-Gd-3 PO7：Yb3 +，Ln（3+）（Ln = Er，Ho，Tm）荧光粉的结构，形态和发光特性。 X射线衍射图谱表明，所有样品均为晶体，并具有单斜晶独居石和单斜晶相的混合物。一些样品是用氢氧化铵（NH4OH）合成的，并且比没有NH4OH的样品具有更好的结晶度。上转换发射是在967 nm激发下获得的。根据我们的结果，通过将Yb3 +浓度从5 mol％增加到20 mol％，颜色发射从红色变为绿色。此外，使用NH4OH合成掺有20 mol％Yb3 +的样品，其绿色发射带增加了约3倍。结果表明，用稀土掺杂GdPO4-Gd3PO7粒子会产生上转换发射，这可用于制造发光涂层或照明设备。（C）2018 Elsevier B.V.保留所有权利。

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来源
《Materials Letters 》 |2018年第1期| 34-37| 共4页
作者
Rosas Camacho A.; Carrillo Romo F. de J.; Garcia Murillo A.; Oliva J.; Garcia C. R.;
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作者单位

Inst Politecn Nacl, Ctr Invest & Innovac Tecnol CIITEC, Cerrada Cecati S-N, Mexico City 02250, DF, Mexico;

Inst Politecn Nacl, Ctr Invest & Innovac Tecnol CIITEC, Cerrada Cecati S-N, Mexico City 02250, DF, Mexico;

Inst Politecn Nacl, Ctr Invest & Innovac Tecnol CIITEC, Cerrada Cecati S-N, Mexico City 02250, DF, Mexico;

Univ Autonoma Coahuila, Fac Ciencias Quim, CONACYT, Saltillo 25280, Coahuila, Mexico;

Univ Autonoma Coahuila, Fac Ciencias Quim, CONACYT, Saltillo 25280, Coahuila, Mexico;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类
关键词
Pechini sol-gel; Up-conversion; Ceramics; Phosphors;

机译：Pechini sol-gel;上转换;陶瓷;荧光粉;

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Sol-gel synthesis and up-conversion luminescence of GdPO_4-Gd_3PO_7: Yb~(3+), Ln~(3+) (Ln = Er, Ho, Tm) phosphor

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