Engineering Luminescence Lifetimes of Cu(I) Complexes for Optical Multiplexing,Advanced Optical Materials

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Engineering Luminescence Lifetimes of Cu(I) Complexes for Optical Multiplexing
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2018-10-11 , DOI: 10.1002/adom.201801065
Yun Ma ₁ , Yafang Dong ₁ , Pengfei She ₁ , Shujuan Liu ₁ , Mingjuan Xie ₁ , Yaxin Yu ₁ , Yonghua Li ₁ , Qiang Zhao ₁ , Wei Huang _{1,

2}

Affiliation

Luminescent materials with tunable emission lifetimes have gained broad research interest, because they are ideal candidates for optical multiplexing applications, such as biolabeling, security printing, and data storage. To date, a few studies have reported that the efficient regulation of emission decay times can be achieved for lanthanide nanomaterials. However, it remains challenging to engineer the luminescence lifetimes of small molecules due to the lack of effective methods. Herein, a new strategy is put forward to control the emission lifetimes of ionic Cu(I) complexes by changing the electrostatic interactions between cationic complexes and counter anions. The Cu(I) complexes prepared with different counterions (ClO₄⁻, PF₆⁻, NO₃⁻, and BF₄⁻) exhibit distinct luminescence lifetimes from 12.9 to 22.3 µs in the solid state. Importantly, by simply doping different contents of CuBF₄ into polymethyl methacrylate, the emission lifetimes could be varied in a linear manner in the range from 11.4 ± 0.3 to 20.7 ± 0.2 µs. Based on the tunable emission lifetimes, optical multiplexing is achieved by using time‐resolved luminescence imaging technique.

中文翻译：

用于光学多路复用的Cu（I）配合物的工程发光寿命

具有可调节发射寿命的发光材料已经引起了广泛的研究兴趣，因为它们是光多路复用应用（例如生物标记，安全打印和数据存储）的理想候选者。迄今为止，一些研究报道了镧系元素纳米材料可以实现对发射衰减时间的有效调节。然而，由于缺乏有效的方法，设计小分子的发光寿命仍然具有挑战性。本文提出了一种新的策略，通过改变阳离子配合物与抗衡阴离子之间的静电相互作用来控制离子型Cu（I）配合物的发射寿命。（具有不同抗衡离子制备的铜（I）配合物CLO ₄^-，PF ₆^-，NO ₃^-和BF ₄^-）表现出在固体状态从12.9至22.3微秒不同发光寿命。重要的是，通过简单地铜含量不同的掺杂 BF ₄到聚甲基丙烯酸甲酯中，发射寿命可以在的范围内的线性方式变化从11.4±0.3 20.7±0.2微秒。基于可调的发射寿命，通过使用时间分辨发光成像技术实现了光复用。

更新日期：2018-10-11

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