Photonic crystals constructed by isostructural metal-organic framework films

Li, Zhihuan; Liu, Jianxi; Wu, Haiyuan; Tang, Jiao; Li, Zhongyang; Xu, Yadong; Zhou, Feng; Liu, Weimin

doi:10.1007/s12274-023-5505-5

Cited by 14 publications

(4 citation statements)

References 48 publications

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“…22−24 Among the MOFs thin film preparation methods, liquid-phase epitaxial (LPE) and layerby-layer (LBL) techniques have been developed to prepare monolithic, uniform, and compact MOF thin films on substrate surfaces, which are referred to as surface-coordinated MOF thin films (SURMOFs). 25,26 These films are particularly wellsuited for third-order nonlinear optical (NLO) applications. 27,28 In this context, porphyrinic MOFs thin films made by the LPE LBL method with automatic facility have distinct benefits due to their low surface roughness, monolithic construction, robust adherence to the substrate surface, controlled orientation, and customizable thickness.…”

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confidence: 99%

“…For many optical devices, the ability to deposit homogeneous and continuous MOFs thin films on transparent substrates plays a crucial role, which can greatly extend the usage scenarios of MOFs. − Among the MOFs thin film preparation methods, liquid-phase epitaxial (LPE) and layer-by-layer (LBL) techniques have been developed to prepare monolithic, uniform, and compact MOF thin films on substrate surfaces, which are referred to as surface-coordinated MOF thin films (SURMOFs). , These films are particularly well-suited for third-order nonlinear optical (NLO) applications. , In this context, porphyrinic MOFs thin films made by the LPE LBL method with automatic facility have distinct benefits due to their low surface roughness, monolithic construction, robust adherence to the substrate surface, controlled orientation, and customizable thickness. Then, by using a postcoordinated process with different valent cations in the porphyrinic group of MOFs, the symmetry of the pristine porphyrinic MOFs structure can be broken.…”

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confidence: 99%

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Coordination-Induced Symmetry Breaking on Metal-Porphyrinic Framework Thin Films for Enhanced Nonlinear Optical Limiting

Tian

Wang

et al. 2023

Nano Lett.

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Structural asymmetry affecting the nonlinear optics (NLO) of metal−organic frameworks (MOFs) is very important in fundamentals and applications but is still a challenge. Herein we develop a series of indium-porphyrinic framework (InTCPP) thin films and provide the first study on the coordination-induced symmetry breaking on their third-order NLO. The continuous and oriented InTCPP(H 2 ) thin films were grown on quartz substrates and then postcoordinated with different cations (Fe 2+ or Fe 3+ Cl − ) in InTCPP(H 2 ) (named InTCPP(Fe 2+ ) and InTCPP(Fe 3+ Cl − )). The third-order NLO results reveal the Fe 2+ and Fe 3+ Cl − coordinated InTCPP thin films have substantially enhanced NLO performance. Moreover, InTCPP(Fe 3+ Cl − ) thin films cause symmetry breaking of microstructures, resulting in a 3-fold increase in the nonlinear absorption coefficient (up to 6.35 × 10 −6 m/W) compared to InTCPP(Fe 2+ ). This work not only develops a series of nonlinear optical MOF thin films but also provides new insight into symmetry breaking on MOFs for nonlinear optoelectronic applications.

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confidence: 99%

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confidence: 99%

Coordination-Induced Symmetry Breaking on Metal-Porphyrinic Framework Thin Films for Enhanced Nonlinear Optical Limiting

Tian

Wang

et al. 2023

Nano Lett.

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“…Such RI contrast has been achieved by combining bilayers of MOFs and dense oxide nanoparticles or lms (typically SiO 2 or TiO 2 ). [39][40][41][42][43] However, the combination of MOFs with highly ordered surfactant-templated MTFs such as those obtained via sol-gel chemistry bears the potential for constituting a new generation of 1D-PCs but remains virtually unexplored. For such an end, if multiple bilayers are to be integrated into photonic nanoarchitectures, the (unfortunately not straightforward) compatibility requirement between synthetic routes for both materials must be met.…”

Section: Introductionmentioning

confidence: 99%

Design, synthesis and characterization of hierarchical porous stacked thin films based on MOFs and ordered mesoporous oxides

Arcidiácono,

Allegretto,

Azzaroni

et al. 2024

J. Mater. Chem. A

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“…However, the uniformity of concave MLAs is hard to control during the condensation process 39 . In another typical indirect method, soft lithography, multiple concave MLAs can be fabricated from the same mother template, and the high transparency of commonly used silane for the method makes it widely applied in optoelectronic devices 40–43 …”

Section: Introductionmentioning

confidence: 99%

Concave microlens arrays with tunable curvature for enhanced photodegradation of organic pollutants in water: A non‐contact approach

Lu,

Li,

Kassim

et al. 2023

EcoMat

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Solar‐driven photodegradation for water treatment faces challenges such as low energy conversion rates, high maintenance costs, and over‐sensitivity to the environment. In this study, we develop reusable concave microlens arrays (MLAs) for more efficient solar photodegradation by optimizing light distribution. Concave MLAs with the base radius of μm are fabricated by imprinting convex MLAs to polydimethylsiloxane elastomers. Concave MLAs possess a non‐contact reactor configuration, preventing MLAs from detaching or being contaminated. By precisely controlling the solvent exchange, concave MLAs are fabricated with well‐defined curvature and adjustable volume on femtoliter scale. The focusing effects of MLAs are examined, and good agreement is presented between experiments and simulations. The photodegradation efficiency of organic pollutants in water is significantly enhanced by 5.1‐fold, attributed to higher intensity at focal points of concave MLAs. Furthermore, enhanced photodegradation by concave MLAs is demonstrated under low light irradiation, applicable to real river water and highly turbid water.image

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Photonic crystals constructed by isostructural metal-organic framework films

Cited by 14 publications

References 48 publications

Coordination-Induced Symmetry Breaking on Metal-Porphyrinic Framework Thin Films for Enhanced Nonlinear Optical Limiting

Coordination-Induced Symmetry Breaking on Metal-Porphyrinic Framework Thin Films for Enhanced Nonlinear Optical Limiting

Design, synthesis and characterization of hierarchical porous stacked thin films based on MOFs and ordered mesoporous oxides

Concave microlens arrays with tunable curvature for enhanced photodegradation of organic pollutants in water: A non‐contact approach

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