期刊
CHEMICAL REVIEWS
卷 122, 期 11, 页码 10438-10483出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.chemrev.1c00980
关键词
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资金
- ERC Consolidator Grant [PROMOFS 771575]
- EU through the FSE+
This review provides a comprehensive overview of LG@MOF, a class of fluorescent materials with unique properties achieved through the confinement of luminescent guests in a metal-organic framework. It covers synthetic methodologies, characterization techniques, and the fundamental phenomena underlying the behavior of LG@MOF systems. The review also highlights the diverse applications of LG@MOF materials.
This review gives an authoritative, critical, and accessible overview of an emergent class of fluorescent materials termed LG@MOF, engineered from the nanoscale confinement of luminescent guests (LG) in a metal-organic framework (MOF) host, realizing a myriad of unconventional materials with fascinating photophysical and photochemical properties. We begin by summarizing the synthetic methodologies and design guidelines for representative LG@MOF systems, where the major types of fluorescent guest encompass organic dyes, metal ions, metal complexes, metal nanoclusters, quantum dots, and hybrid perovskites. Subsequently, we discuss the methods for characterizing the resultant guest-host structures, guest loading, photophysical properties, and review local-scale techniques recently employed to elucidate guest positions. A special emphasis is paid to the pros and cons of the various methods in the context of LG@MOF. In the following section, we provide a brief tutorial on the basic guest-host phenomena, focusing on the excited state events and nanoscale confinement effects underpinning the exceptional behavior of LG@MOF systems. The review finally culminates in the most striking applications of LG@MOF materials, particularly the turn-on type fluorochromic chemo- and mechano-sensors, noninvasive thermometry and optical pH sensors, electroluminescence, and innovative security devices. This review offers a comprehensive coverage of general interest to the multidisciplinary materials community to stimulate frontier research in the vibrant sector of light-emitting MOF composite systems.
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