Intense red-green up-conversion emission and their mechanisms of SrO: Er3+/Yb3+, Gd3+, Lu3+, Bi3+
Intense red-green up-conversion emission and their mechanisms of SrO: Er3+/Yb3+, Gd3+, Lu3+, Bi3+
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SrO: Er3 /Yb3 , Gd3 , Lu3 , Bi3 的强红绿上转换发射及其机理
DOI：
10.1016/j.jlumin.2016.09.029
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发表时间：
2017-01-01
影响因子：
3.6
通讯作者：
Li, Chengyu
中科院分区：
文献类型：
--
作者：
Fu, Jipeng;Pang, Ran;Li, Chengyu
通过改进的固相反应获得了一系列新型强红绿上转换（UC）荧光粉SrO：Er2+/Yb3+、Gd3+、Lu3+、Bi3+。获得的UC样品发出耀眼的红绿光。它们的光谱由强红光发射（F-4(9/2) -> I-4(15/2)）和绿光发射（H-2(11/2)、S-4(3/2) -> I-4(5/2)）组成，由 980 nm 近红外 (NIR) 激光二极管（小于 90 mW/cm2）激发。综合分析了UC光谱对掺杂剂含量、浓度和泵浦功率的依赖性。提出了可能的UC机制和流程。这些研究提供了一个机会，可以通过参考给定的方法来调整发射颜色并设计具有所需性能的新型材料。预计这些材料可能在身份验证、显示和光开关领域具有潜在的应用。 (C) 2016 Elsevier B.V. 保留所有权利。
A novel series of intense red-green up-conversion (UC) phosphors SrO: Er2+/Yb3+, Gd3+, Lu3+, Bi3+ were obtained through a modified solid-state reaction. The obtained UC samples emitted dazzling red-green light. Their spectra were composed of strong red emission (F-4(9/2) -> I-4(15/2)) and green emission (H-2(11/2), S-4(3/2) -> I-4(5/2)) with the excitation of a 980 nm near-infrared (NIR) laser diode (less than 90 mW/cm2). The dependence of UC spectra on dopant contents, concentration and pumping power were comprehensively analyzed. The possible UC mechanisms and processes were proposed. These studies provided an opportunity to adjust emission colors and design new types of materials with desired properties through referencing a given methodology. It is anticipated that these materials may have potential applications in the fields of authentication, display and photo-switching. (C) 2016 Elsevier B.V. All rights reserved.