Humidity-resistant organic room-temperature phosphorescence materials synthesized using catalyst-free click reaction

Yang, Xipeng; Dong, Yongjie; Ma, Song; Ren, Jiangtao; Li, Ningyan; Lü, Shaoyu

doi:10.1016/j.cej.2023.142198

Cited by 10 publications

(4 citation statements)

References 54 publications

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“…Thus, the B─O covalent bonds between the hydroxyl groups in the glucopyranose ring and the boronic acid group of the chromophores were formed to efficiently restrict molecular motion and suppress the non-radiative decay of the excited triplet excitons (Figure 2f), leading to long-lived RTP. [25] The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) gaps are in accordance with the optical gap, and a highly conjugated structure features a narrower HOMO-LUMO gap. [26] The HOMO and LUMO are distributed throughout the molecular skeletons of the arylboronic acids.…”

Section: Preparation For Multicolor Rtp Cellulose Via Heterogeneous B...mentioning

confidence: 75%

Large‐Scale Preparation for Multicolor Stimulus‐Responsive Room‐Temperature Phosphorescence Paper via Cellulose Heterogeneous Reaction

Gao,

Shi,

Lü

et al. 2023

Advanced Materials

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The large‐scale preparation of sustainable room‐temperature phosphorescence (RTP) materials, particularly those with stimulus‐response properties, is attractive but remains challenging. This study develops a facile heterogeneous B─O covalent bonding strategy to anchor arylboronic acid chromophores to cellulose chains using pure water as a solvent, resulting in multicolor RTP cellulose. The rigid environment provided by the B─O covalent bonds and hydrogen bonds promotes the triplet population and suppresses quenching, leading to an excellent lifetime of 1.42 s for the target RTP cellulose. By increasing the degree of chromophore conjugation, the afterglow colors can be tuned from blue to green and then to red. Motivated by this finding, a papermaking production line is built to convert paper pulp reacted with an arylboronic acid additive into multicolor RTP paper on a large scale. Furthermore, the RTP paper is sensitive to water because of the destruction of hydrogen bonds, and the stimuli‐response can be repeated in response to water/heat stimuli. The RTP paper can be folded into 3D afterglow origami handicrafts and anti‐counterfeiting packing boxes or used for stimulus‐responsive information encryption. This success paves the way for the development of large‐scale, eco‐friendly, and practical stimuli‐responsive RTP materials.

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Section: Preparation For Multicolor Rtp Cellulose Via Heterogeneous B...mentioning

confidence: 75%

Large‐Scale Preparation for Multicolor Stimulus‐Responsive Room‐Temperature Phosphorescence Paper via Cellulose Heterogeneous Reaction

Gao,

Shi,

Lü

et al. 2023

Advanced Materials

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“…Organic room-temperature phosphorescent (RTP) polymers have gained attention in multidisciplinary fields, including information security, [1][2][3] biochemistry, [4][5][6] and optical devices [7][8][9] due to their unprecedented properties such as long lifetime, large Stokes shift, and low toxicity. Achieving RTP involves two primary requisites: 1) Intersystem crossing is required to promote DOI: 10.1002/adom.202303330 the transition from the lowest excited singlet state to the excited triplet state.…”

Section: Introductionmentioning

confidence: 99%

Room‐Temperature Phosphorescence Hydrogel with Multiple Color Based on Salt‐Induced Aggregation

Yu,

Zhang,

Chen

et al. 2024

Advanced Optical Materials

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Organic photoluminescent materials with room‐temperature phosphorescence (RTP) are of great interest, yet achieving RTP in hydrogels faces challenges due to water‐quenching effects. In this study, a straightforward method is presented to achieve RTP hydrogel using a self‐healing and salt‐hardening hydrogel. The hydrogel is synthesized by polymerizing acrylic acid (AA) with diethylenetriamine (DETA) as the dynamic crosslinker. The poly(acrylic acid)/DETA hydrogel could achieve an afterglow lasting 1.6 s after soaking with NaBr solution. The salt‐enhanced hydrophobic aggregation of the hydrogel network promotes the clustering of carboxyl groups and oxygen atoms, resulting in a rigid environment that suppresses nonradioactive transitions and leads to the manifestation of RTP. Additionally, the dynamic association of AA‐DETA allows the freeze‐dried hydrogel powder to be blended with various hydrophobic dyes, leading to a remodelable hydrogel with delayed emission of multiple colors. In general, by combining salt‐hardening property with self‐healing property together, a RTP hydrogel platform that can be facilely loaded with various organic dyes is proposed.

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“…[11][12][13] The practical application of organic RTP materials necessitates their capability for tailored design, large-scale preparation, and the fabrication of sophisticated RTP objects. [14,15] However, the reported organic RTP materials are mainly limited to be used as powders or inks to print 2D patterns [16][17][18][19] or to prepare RTP paper and film with monotonous plane architectures; [20,21] the absence of stereoscopic structure-related research will significantly hinder their practical applications.…”

Section: Introductionmentioning

confidence: 99%

3D Printed Room Temperature Phosphorescence Materials Enabled by Edible Natural Konjac Glucomannan

Wu,

Li,

Chen

et al. 2024

Advanced Materials

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Shaping room temperature phosphorescence (RTP) materials into three‐dimensional (3D) bodies is important for stereoscopic optoelectronic displays, but remains challenging due to their poor processability and mechanical properties. Here, konjac glucomannan is employed to anchor arylboronic acids with various π conjugations via a facile B─O covalent reaction to afford printable inks, using which full‐color high‐fidelity 3D RTP objects with high mechanical strength can be obtained via direct ink writing‐based 3D printing and freeze‐drying. The doubly rigid structure supplied by the synergy of hydrogen bonding and B─O covalent bonding can protect the triplet excitons, thus the prepared 3D RTP object shows a striking lifetime of 2.14 s. The printed counterparts are successfully used for 3D anti‐counterfeiting and can be recycled and reprinted nondestructively by dissolving in water. This success expands the scope of printable 3D luminescent materials, providing an eco‐friendly platform for the additive manufacturing of sophisticated 3D RTP architectures.This article is protected by copyright. All rights reserved

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Humidity-resistant organic room-temperature phosphorescence materials synthesized using catalyst-free click reaction

Cited by 10 publications

References 54 publications

Large‐Scale Preparation for Multicolor Stimulus‐Responsive Room‐Temperature Phosphorescence Paper via Cellulose Heterogeneous Reaction

Large‐Scale Preparation for Multicolor Stimulus‐Responsive Room‐Temperature Phosphorescence Paper via Cellulose Heterogeneous Reaction

Room‐Temperature Phosphorescence Hydrogel with Multiple Color Based on Salt‐Induced Aggregation

3D Printed Room Temperature Phosphorescence Materials Enabled by Edible Natural Konjac Glucomannan

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