Switchable Two‐Photon Pumped Polarized Lasing Performance in Composition‐Graded MOFs Based Heterostructures

Li, Hongjun; Zhang, Lin; He, Hua‐Jun; Hu, Enlai; Yang, Yu; Li, Bin; Cui, Yuanjing; Qian, Guodong

doi:10.1002/adom.202001089

Cited by 19 publications

(19 citation statements)

References 40 publications

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“…Two different dyes E-4(4-dimethylaminostyryl)-1-ethylpyridinium (DASE) and 4-((1E,3E)-4-(4(dimethylamino) phenyl)buta-1,3-dien-1-yl)-1-methylpyridinium (DABP) were stepwise encapsulated in a Zn MOF {H 2 [Zn 3 O(C 17 H 9 NO 4 ) 3 ]} supported by an organic linker 7-(4-carboxyphenyl)quinoline-3-carboxylic acid (H 2 CPQC), which produced heterostructure materials of DASE@DABP@Zn MOF and DABP@DASE@ Zn MOF. [62] For example, emission spectra of DASE@Zn MOF showed TPP lasing properties above a threshold value around 5.03 mJ cm −2 when excited by a 1000 nm laser. Meanwhile, emission spectra of DABP@Zn MOF showed TPP lasing properties above a threshold value around 5.35 mJ cm −2 when excited by a 1200 nm laser (Figure 9a,b).…”

Section: Wwwadvopticalmatdementioning

confidence: 99%

Photonic Metal‐Organic Frameworks

Cong

2021

Advanced Optical Materials

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focus on MOFs and hybridized MOFs for photonic applications including solid state lighting, [14][15][16] lasing, [17][18][19] nonlinear optics, [20,21] and phototherapy [22][23][24][25] has attracted a vast attention.The synthesis of MOFs requires both metal salts/clusters and organic linkers, which can be realized through conventional methods from room temperature to elevated temperatures and solvothermal conditions. In the case of solvothermal conditions, autoclaves are utilized to give extra pressure and better solubilities above boiling point of the solvent compared to refluxing at atmospheric pressure. Furthermore, mechanochemical synthesis, microwave-assisted synthesis, electrochemical synthesis, and sonochemical synthesis are also available. [26] It is noteworthy that topologies may vary when utilizing the same starting materials under different reaction conditions, which causes multiple combinations of starting materials with structural transformations and intriguing properties.Studies on MOFs for photonic applications are rapidly growing. In the field of solid state lighting materials based on MOFs, the emitting light is generated from combinations of inorganic metal nodes, organic linkers, and guest species showing enhanced stability and efficiency compared to pure inorganic or organic lighting materials. Optical and thermal stabilities are improved for micro-/nano laser devices based on MOFs compared to organic dye lasers. For phototherapy purposes, MOF-based cures need to additionally hybridize with organic polymers to be affordable in physiological environment and guest species with high photothermal conversion efficiency to enhance light absorption. As of applications for nonlinear optics based on MOFs displaying second harmonic generation (SHG) and third harmonic generation (THG), one focus is to construct non-centrosymmetric structures with appropriate coordination geometries supported by rigidly bridging organic linkers to possess second-order nonlinear optical (NLO) properties. [27] On the contrary, THG occurs in all materials showing much weaker NLO properties than SHG. [20,28] Herein, we concentrate on the very recent progresses for photonic MOFs in the following applications: 1) white solidstate lighting; 2) lasing; 3) nonlinear optics including SHG and THG; and 4) phototherapies including photodynamic therapy (PDT), photothermal therapy (PTT), and synergy effect. We discuss in detail the construction strategies and performances given by subcategories under each topic (Scheme 1).Materials of metal-organic frameworks (MOFs) in pure and hybridized forms showing photonic properties have received much attention during past years. Strategies to prepare photonic MOF-based materials are constantly used as follows: 1) designing of pure MOFs with intrinsic luminescent units such as organic linkers and/or lanthanide ions; 2) designing of hybrid MOF composites through encapsulation of extrinsic luminescent units such as organic dyes and/or inorganic nanospecies; and 3) designing of MOF-based composites ...

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Section: Wwwadvopticalmatdementioning

confidence: 99%

Photonic Metal‐Organic Frameworks

Cong

2021

Advanced Optical Materials

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“…[71] So far, the composite material systems dye incorporated MOF microcrystals have found many important applications in the design of novel microlasers, such as frequency-upconversion, wavelength-tunable, and dual-wavelength microlasers. [72][73][74][75][76][77][78]…”

Section: Suppression Of Nonradiative Transitions For Efficient Fluorescence/lasingmentioning

confidence: 99%

Organic composite materials: Understanding and manipulating excited states toward higher light‐emitting performance

et al. 2021

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Organic composite materials have been attracting extensive research interest for light‐emitting applications. A wide variety of luminescent organic composite materials have been synthesized, which are of great significance for both the investigation of basic photophysics and the realization of high‐performance photonic devices. Function‐oriented syntheses of luminescent organic composite materials rely on the understanding and manipulating of molecular excited states. In this review, we focus on the discussion about the structure design and dynamics modulation of the electronic excited states in the organic composite materials. The excited‐state structures and dynamics involve singlet/triplet levels, vibronic transition, charge transfer, and energy transfer, and so on, while the light‐emitting behaviors include fluorescence, phosphorescence, persistent luminescence, electroluminescence, and lasing. We aim to give insight into the relationship between light‐emitting properties and excited states of organic composite materials, which is beneficial for reaching higher tiers of design and applications of luminescent organic composite materials.

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“…Such miniaturized lasers can be achieved by exploiting a wavelength-tunable gain medium, that is effectively coupled into a microcavity 6 , 7 , 9 , 10 . Among them, free-standing semiconductor alloy nanowires have received considerable attention, where the nanowires serve as both the gain medium and optical cavity.…”

Section: Introductionmentioning

confidence: 99%

Dual-wavelength switchable single-mode lasing from a lanthanide-doped resonator

Jin

Chen

et al. 2022

Nat Commun

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The development of multi-wavelength lasing, particularly with the wavelength tuning in a wide spectral range, is challenging but highly desirable for integrated photonic devices due to its dynamic switching functionality, high spectral purity and contrast. Here, we propose a general strategy, that relies on the simultaneous design on the electronic states and the optical states, to demonstrate dynamically switchable single-mode lasing spanning beyond the record range (300 nm). This is achieved through integrating the reversely designed nanocrystals with two size-mismatched coupled microcavities. We show an experimental validation of a crosstalk-free violet-to-red single-mode behavior through collective control of asymmetric excitation and excitation wavelength. The single-mode action persists for a wide power range, and presents significant enhancement when compared with that in the microdisk laser. These findings enlighten the reverse design of luminescent materials. Given the remarkable doping flexibility, our results may create new opportunities in a variety of frontier applications.

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Switchable Two‐Photon Pumped Polarized Lasing Performance in Composition‐Graded MOFs Based Heterostructures

Cited by 19 publications

References 40 publications

Photonic Metal‐Organic Frameworks

Photonic Metal‐Organic Frameworks

Organic composite materials: Understanding and manipulating excited states toward higher light‐emitting performance

Dual-wavelength switchable single-mode lasing from a lanthanide-doped resonator

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