Modulation of lanthanide luminescence via an electric field.
Modulation of lanthanide luminescence via an electric field.
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DOI：
10.1039/c9nr04684d
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发表时间：
2019-09
期刊：
影响因子：
6.7
通讯作者：
Yangbo Wang;Jiaxin Gao;Chao Gao;Hui Ma;Bingxiao Yang;Yingdong Han;Enlong Zhou;Qianya Cheng;Su Jing;Ling Huang
中科院分区：
文献类型：
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作者：
Yangbo Wang;Jiaxin Gao;Chao Gao;Hui Ma;Bingxiao Yang;Yingdong Han;Enlong Zhou;Qianya Cheng;Su Jing;Ling Huang
通过诸如温度、机械应力、静水压力以及电场和/或磁场的外部刺激来调制发光已经见证了巨大的进步，使得能够公开新的原理和能量传递途径，并且拓宽了应用。然而，通过外加电场对掺杂在半导体中的镧系离子的发光调制的研究仍然缺乏。在此，我们第一次证明了原位，实时，可逆调制的发光Eu 3+掺杂在SnO 2纳米晶体通过操纵光生电子和空穴的复合率，以及伴随的能量转移模式的线性和准正弦，从半导体镧系离子。根据同样的原理，进一步实现了对SnO 2中Er 3+的近红外响应调制和钙钛矿纳米晶的可见光发光。这项研究提供了额外的发光调制的方法，除了那些已经报道的铁和/或压电托管发光材料。
The modulation of luminescence via external stimuli such as temperature, mechanical stress, hydrostatic pressure, as well as electric and/or magnetic fields, has witnessed great progress, enabled the disclosure of new principles and energy transfer pathways, and widened applications. However, investigations on the luminescence modulation of lanthanide ions doped in semiconductors via an applied electric field are still absent. Herein, for the first time, we have demonstrated the in situ, real-time, and reversible modulation of the luminescence of Eu3+ doped in SnO2 nanocrystals by manipulating the recombination rate of photo-generated electrons and holes, and the accompanied energy transfer mode in terms of linear and quasi-sinusoidal, from semiconductor to lanthanide ions. Following the same principle, the modulation of near infrared responsive Er3+ in SnO2 and the visible luminescence of perovskite nanocrystals is further realized. This study offers extra methodologies for luminescence modulation, in addition to those already reported for ferro- and/or piezoelectric-hosted luminescent materials.