通过有机阳离子和掺杂锑有效操纵混合氯化锰中的光致发光

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2024-10-11 DOI:10.1016/j.jlumin.2024.120937

Yingjie Mao , Zhichao Zhang , Guojun Zhou , Chen Fang , Yihan Liu , Denghui Xu , Jia Zhao , Aicong Geng , Jun Zhou

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引用次数: 0

摘要

具有典型 d-d 转变的零维（0D）锰（II）基杂化物因其环保性、蓝光激发和高热稳定性而被迅速开发出来。在这里，我们首先设计了两种新型的绿色发光 0D Mn（II）基混合物 (C16H28N)2MnCl4 和 (C21H46N)2MnCl4，其中有机阳离子与四配位[MnCl4]2- 四面体共晶。在蓝光激发下，这两种晶体表现出窄带绿色发射，且具有不同的发射强度和 FWHM 以及热淬灭行为，分析了不同有机阳离子的晶体结构对发光性能的影响。此外，通过调节[SbCl5]2-/[MnCl4]2-摩尔比或激发波长，可以在 (C16H28N)2MnCl4:Sb3+ 中观察到从绿色到橙红色的多种发射颜色。我们的研究不仅丰富了有机阳离子对晶体结构和发光性能的影响，而且为通过 Sb3+ 离子掺杂策略实现多色发光提供了新的方向。

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Efficient manipulation of photoluminescence by organic cations and Sb doping in hybrid manganese chlorides

Zero-dimensional (0D) Mn(II)-based hybrids with the typical d–d transitions have been rapidly developed benefitting from the environmental friendliness, blue light excitation and the high thermal stability. Herein, we first designed two novel green-emitting 0D Mn(II)-based hybrids (C₁₆H₂₈N)₂MnCl₄ and (C₂₁H₄₆N)₂MnCl₄, where the organic cations cocrystallize with four-coordinated [MnCl₄]^2- tetrahedrons. Upon blue-light excitation, these two crystals exhibited narrow-band green emission with distinct emission intensity and FWHM as well as thermal quenching behavior, which is analyzed by the influence of the crystal structure of different organic cations on the luminescence performance. Furthermore, multiple emission color can be observed from green to orange-red in (C₁₆H₂₈N)₂MnCl₄:Sb³⁺ by regulating the [SbCl₅]^2-/[MnCl₄]^2- molar ratio or excitation wavelength. Our study not only enriches the influence of organic cations on crystal structure and luminescence performance, but also provides a new direction towards realizing the multi-color emission by Sb³⁺ ions doping strategy.

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来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.