Water friendly room temperature phosphorescence doped materials prepared via metal organic framework matrix transformation

Ni, Ai‐Yun; Zhang, Peipei; Zhang, Jianjun; Wang, Hui-Yu; Feng, Ke-Xin; Li, Shuqin; Ni, Jun; Duan, Chunying

doi:10.1016/j.dyepig.2022.110959

Cited by 11 publications

(6 citation statements)

References 62 publications

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Section: Introductionmentioning

confidence: 99%

“…Nevertheless, it is still a great challenge to acquire RTA materials with color tunability in response to external stimuli especially water due to the presence of phosphorescence quenching by dissolved oxygen and solvent assisted relaxation generally. [27][28][29][30] Herein, we report color-tunable water stimulus-responsive RTA inorganic/organic H-G hybrid systems by introducing benzoic acid derivatives into the inorganic BA matrix using solidphase heat treatment (IPA@HBA, TPA@HBA and PA@HBA). IPA@HBA systems with different proportions of IPA exhibit diverse color tunable RTA performance with wavelengthdependence, while TPA@HBA and PA@HBA display only excitation-wavelength-dependent RTA feature with intensity change.…”

Section: Introductionmentioning

confidence: 99%

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Water stimulus-responsive room temperature afterglow materials with color tunability based on inorganic/organic H–G hybrid systems

Hou,

Yang,

2024

J. Mater. Chem. C

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Water stimulus-responsive room temperature afterglow materials with color tunability based on inorganic/organic H–G hybrid systems

Hou,

Yang,

2024

J. Mater. Chem. C

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“…Long persistent luminescence (LPL) materials, also known as long afterglow materials, are a unique class of substances that remain luminescent for a period of time after the excitation light source is removed. − Compared with short-lived fluorescent materials, LPL materials provide naked-eye visualization and enable clearer LPL responses. However, functional LPL materials using LPL as a probe signal are scarce and are therefore constantly explored by researchers.…”

Section: Introductionmentioning

confidence: 99%

Reversible Acid–Base Long Persistent Luminescence Switch Based on Amino-Functionalized Metal–Organic Frameworks

Wang,

Chen,

Wang

et al. 2024

Inorg. Chem.

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Metal−organic frameworks (MOFs) with long persistent luminescence (LPL) have attracted extensive research attention from researchers due to their potential applications in information encryption, anticounterfeiting technology, and security logic. In contrast to short-lived fluorescent materials, LPL materials offer a visible response that can be easily distinguished by the naked eye, thereby facilitating a much clearer visualization. However, there are few reports on functional LPL MOF materials as probes. In this article, two amino-functional LPL MOFs (VB4−2D and VB4−1D) were synthesized. They both exhibited adjustable fluorescence and phosphorescence from blue to green and from cyan to green, respectively. Notably, the MOFs emitted bright and adjustable LPL upon the removal of the different radiation sources. The basic amino functional groups in the MOFs exhibited acid and ammonia sensitivity, and fluorescence and phosphorescence emission intensities can be burst and restored in two atmospheres, respectively, which can be cycled multiple times. Furthermore, LPL intensity undergoes switching between two different conditions as well, which can be visually discerned by the naked eye, enabling visual sensing of volatiles by LPL. This combination of photoluminescence and the visual LPL switching behavior of acids and bases in functional MOFs may provide an effective avenue for stimulus response, anticounterfeiting, and encryption applications.

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“…[ 15–17 ] In contrast, the RTP emission of most phosphorescent materials can be quenched in the aqueous phase due to the presence of dissolved oxygen in it, [ 18 ] and the solvent‐assisted relaxation. [ 19,20 ]…”

Section: Introductionmentioning

confidence: 99%

“…[15][16][17] In contrast, the RTP emission of most phosphorescent materials can be quenched in the aqueous phase due to the presence of dissolved oxygen in it, [18] and the solvent-assisted relaxation. [19,20] Hydrogels are 3D crosslinked polymer networks that can absorb large amounts of water while maintaining their solid shape. [21][22][23] The incorporation of photoluminescent materials, such as fluorescent proteins, organic dyes, and lanthanide complexes, into hydrogels produces photoluminescent hydrogels.…”

Section: Introductionmentioning

confidence: 99%

Room‐Temperature Phosphorescent Tough Hydrogels Based on Ionically Crosslinked Nonaromatic Polymers

Deng,

Liu,

Liu

et al. 2023

Adv Funct Materials

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Organic photoluminescent materials exhibiting room‐temperature phosphorescence (RTP) have attracted widespread attention. However, most of them can emit phosphorescence only in the solid state, which strongly limits their applications. Herein, a type of phosphorescent hydrogel with excellent mechanical properties is prepared by immersing an as‐prepared poly(vinyl alcohol) (PVA) hydrogel in a poly(sodium maleate) solution and then in a CaCl2 solution, followed by drying under stretching at 90 °C and finally soaking it in deionized water until equilibrium swelling to produce poly(vinyl alcohol)/poly(calcium maleate)‐DS ( PVA/PMACa‐DS) hydrogels. Such hydrogels exhibit excellent mechanical properties, showing tensile strengths up to 15 MPa, due to the presence of strong hydrogen bonding and especially ionic bonding. The PVA/PMACa‐DS hydrogels emit varied phosphorescence emission colors from blue to yellow‐green upon excitation with 312–400 nm light, with a maximum lifetime of 13.4 ms. Experiments and theoretical calculations demonstrate that ionic crosslinking between Ca2+ and nonconventional chromophores prevents the contact of the nonconventional chromophores with water molecules and hence restricts nonradiative decay, leading to RTP emission. This work provides a reliable strategy for designing RTP hydrogels with excellent mechanical properties based on nonaromatic polymers for emerging applications.

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Water friendly room temperature phosphorescence doped materials prepared via metal organic framework matrix transformation

Cited by 11 publications

References 62 publications

Water stimulus-responsive room temperature afterglow materials with color tunability based on inorganic/organic H–G hybrid systems

Water stimulus-responsive room temperature afterglow materials with color tunability based on inorganic/organic H–G hybrid systems

Reversible Acid–Base Long Persistent Luminescence Switch Based on Amino-Functionalized Metal–Organic Frameworks

Room‐Temperature Phosphorescent Tough Hydrogels Based on Ionically Crosslinked Nonaromatic Polymers

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