An anthracene based metal–organic framework showing efficient angle-dependent polarized emission, luminescence thermometry, and photoelectronic response,Dalton Transactions

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An anthracene based metal–organic framework showing efficient angle-dependent polarized emission, luminescence thermometry, and photoelectronic response
Dalton Transactions ( IF 3.5 ) Pub Date : 2022-01-06 , DOI: 10.1039/d1dt04077d
Ji-Rui Zhang _{1,

2} , Hao-Yi Zhang ₂ , Jia-Hui Guo ₂ , Zi-Han Liu ₂ , Cheng-Yu Ma ₂ , Xiao-Gang Yang ₂ , Xiao-Yan Lu ₂ , Jian-Hua Qin ₂ , Lu-Fang Ma _{1,

2}

Affiliation

The development of luminescent metal–organic frameworks (MOFs) has attracted extensive attention due to their applications in photoelectric devices, organic light-emitting diodes (OLEDs), anti-counterfeiting, biological imaging and so on. In this work, a novel anthracene based metal–organic framework, [Cd(DCPA)(DMF)]·(H₂O) (1) (H₂DCPA = 9,10-di(p-carboxyphenyl)anthracene), has been successfully synthesized under solvothermal conditions. The highly ordered arrangement and special spatial conformation of the anthracene chromophore play a significant role in the photophysical properties of 1. The combination of theoretical calculations and experiments shows that the molecular orbitals have good separation for inhibiting the recombination of electrons and holes. Furthermore, the fluorescence emission of 1 can be instantaneously and reversibly tuned between blue and green at different polarizing angles. Temperature-dependent fluorescence measurements indicate a good linear relationship between the maximum emission intensity/wavelength and the temperature for efficient thermochromism and luminescence thermometry. Photoelectric measurements reveal that 1 shows high performance of photocurrent generation under light illumination. Therefore, our research affords a new perspective to extend the application of luminescent MOFs in the fields of polarized emission, thermometry and photoelectronic response.

中文翻译：

一种基于蒽的金属有机框架，显示出有效的角度依赖性偏振发射、发光测温和光电响应

发光金属有机框架（MOFs）的发展因其在光电器件、有机发光二极管（OLEDs）、防伪、生物成像等方面的应用而受到广泛关注。在这项工作中，一种新颖的基于蒽的金属有机骨架，[Cd(DCPA)(DMF)]·(H ₂ O) ( 1 ) (H ₂ DCPA = 9,10-di( p -carboxyphenyl)anthracene)，具有在溶剂热条件下成功合成。蒽发色团的高度有序排列和特殊的空间构象对1的光物理性质起着重要作用. 理论计算和实验相结合表明，分子轨道具有良好的分离性，可以抑制电子和空穴的复合。此外，1的荧光发射可以在不同的偏振角下在蓝色和绿色之间瞬时和可逆地调节。温度相关的荧光测量表明最大发射强度/波长与有效热致变色和发光测温法的温度之间存在良好的线性关系。光电测量表明1在光照下显示出高性能的光电流产生。因此，我们的研究为扩展发光 MOF 在偏振发射、测温和光电响应领域的应用提供了新的视角。

更新日期：2022-01-06

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