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Article
Multidisciplinary Sciences
Xin Zhang et al.
Summary: A new principle for constructing ecofriendly color-tunable organic room-temperature phosphorescence (RTP) nanomaterials based on the nano-surface confining effect was discovered. Cellulose nanocrystal (CNC) immobilized cellulose derivatives (CX) with aromatic substituents effectively inhibit the motion of cellulose chains and luminescent groups, suppressing non-radiative transitions. The introduction of different CX and regulation of CX/CNC ratio allows for finely adjusting the RTP emission.
Article
Chemistry, Multidisciplinary
Deliang Wang et al.
Summary: By doping organic materials with color-tunable and time-dependent long persistent luminescence, the encryption level can be improved, leading to promising applications in anti-counterfeiting.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Rui Tian et al.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Yulei Gao et al.
Summary: By coorganizing complementary cyan and red organic phosphors into cellulose-based room-temperature phosphorescent (RTP) materials, tunable multicolor phosphorescence emission, including white-light, is achieved, showing great potential for various applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Chunguang Ren et al.
Summary: A kind of amorphous RTP material with ultralong lifetime is fabricated by covalently bonding sodium alginate with arylboronic acid in aqueous phase. The resulting polymer film exhibits distinctive RTP performance with excitation-dependent emissions from cyan to green. These smart materials are successfully applied in data encryption and anti-counterfeiting due to the color-tunable and stimuli-responsive afterglows.
Article
Engineering, Environmental
Qian Gao et al.
Summary: In this study, a stereospecific redox strategy is used to trigger clusterization reconstruction of cellulose, resulting in long-lived and color-tunable phosphorescence. The researchers also discovered that different redox products form different aggregated states, resulting in different energy afterglows. Additionally, reduced redox products provide a more rigid crystalline environment that suppresses nonradiative relaxation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Wen-Wen Xu et al.
Summary: This study presents a series of solid supramolecules with tunable room-temperature phosphorescence, with P-CF3/CB[7] showing the longest lifetime. The ultralong multicolor phosphorescence energy transfer supramolecular assembly can be used in anti-counterfeiting, information encryption, and painting applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Mingyue Cui et al.
Summary: This article introduces a probe with ultralong phosphorescence lifetime for millisecond-range time-resolved bioimaging, which demonstrates high signal-to-background ratio in imaging live cells and deep tumor tissue in mice.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Saixing Tang et al.
Summary: Unprecedented intrinsic fluorescence/phosphorescence dual emissions are reported from various quaternary ammonium salts (QASs), which can be finely regulated by changing multiple factors. This finding refreshes the understanding of QASs and provides inspiration for the fabrication of novel luminophores.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Multidisciplinary Sciences
Dan Li et al.
Summary: The authors report a stimulus-responsive room temperature phosphorescent material composed of arylboronic acid and poly(vinylalcohol), which has color tunable and processable properties. This material shows sensitivity to water and heat stimuli and can be adjusted in color by introducing other fluorescent dyes.
NATURE COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Wenhao Shao et al.
Summary: This Account summarizes important molecular design and matrix engineering strategies to tackle the challenges of low SOC efficiency and nonradiative decay in purely organic phosphors (POPs). SOC is mostly promoted by heavy atom effects and the El-Sayed rule, while engineering the matrices of POPs is critical to effectively suppress nonradiative decay. Future research can focus on molecular design descriptors, such as heavy atom oriented orbital angular momentum manipulation, to further enhance SOC efficiency in purely organic materials.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Nanoscience & Nanotechnology
Xin Zhang et al.
Summary: The article describes the development of a new type of biopolymer-based phosphorescent materials that have excellent processability and irreversible humidity-responsiveness by introducing the imidazolium cation to the cellulose chain.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Yongfeng Zhang et al.
Summary: This study reports that cross-linked polyphosphazene nanospheres can effectively promote long-lived organic room-temperature phosphorescence (RTP). Through molecular engineering, introducing multiple functional groups greatly enhances the spin-orbit coupling constant, thereby improving the phosphorescence performance. Encapsulating the polyphosphazene nanospheres with a poly(vinyl alcohol) matrix further improves the phosphorescence lifetime, efficiency, afterglow duration time, and absolute luminance, and can be used for detecting volatile organic compounds.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Multidisciplinary Sciences
Xin Zhang et al.
Summary: In this study, a processable phosphorescent cationized cellulose derivative was developed by introducing ionic structures into cellulose chains. The resulting material exhibited excellent antibacterial properties, water resistance, and environmental friendliness, making it a promising candidate for advanced anti-counterfeiting, information encryption, and other applications.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Dan Li et al.
Summary: The strategy of achieving stimulus-responsive ultralong room temperature phosphorescence (RTP) with color-tunable emissions using water as solvent in the preparation process is reported. By covalent linkage of arylboronic acids with different IC conjugations and polymer matrix of polyvinyl alcohol, the polymer films exhibit outstanding RTP performance. The RTP property of these materials is sensitive to water and heat stimuli. Furthermore, they have been successfully applied in multilevel information encryption and multicolor paper and ink.
Article
Chemistry, Multidisciplinary
Zhengshuo Wang et al.
Summary: This study developed a new doped polymer film based on sodium alginate and aromatic carboxylates, which can be easily fabricated through the aqueous solution process. The film is flexible, transparent, and re-dissolvable, and it can exhibit multi-tunable afterglow colors from blue to red and even white. Better controllability can be achieved through co-doping and triplet-to-singlet Forster resonance energy transfer (TS-FRET). The film demonstrates advanced anti-counterfeiting capabilities based on its excitation- and time-dependent as well as TS-FRET-mediated afterglow colors.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xin Zheng et al.
Summary: This study utilizes synergism between covalent and non-covalent bonds to fix an organic phosphor guest in a rigid inorganic framework, achieving efficient and ultralong room-temperature phosphorescence. By solid-phase synthesis, twelve heavy-atom-free composites are obtained, all of which exhibit highly efficient and persistent phosphorescent properties visible to the naked eye.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Multidisciplinary
Donghui Wang et al.
Summary: A heat-treatment strategy is proposed to embed levofloxacin in the matrix of boric acid to produce a complex with highly luminescent properties. The emission color and lifetime of the complex can be modulated by controlling the synthetic conditions, making it promising for applications in light-emitting diodes and information encryption.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Engineering, Environmental
Maozhu Zeng et al.
Summary: This study presents a simple and universal strategy to obtain polymer film from cellulose chains. By connecting aromatic derivatives onto the chains and drying them through hot press process, the emission color of the film can be tuned. The best-performing film shows a significantly enhanced lifetime after irradiation. Additionally, the hot-pressed films exhibit excellent mechanical and luminescent properties due to the space stacking effects of grafted groups and abundant intermolecular hydrogen bonding.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Multidisciplinary Sciences
Xiaokang Yao et al.
Summary: The introduction of carboxyl groups into organic phosphors enables the formation of intense repulsive interactions between isolated molecules and the matrix, leading to bright organic phosphorescence in films. This finding expands the potential applications of ultralong organic phosphorescence materials.
NATURE COMMUNICATIONS
(2022)
Article
Physics, Applied
Gaozhan Xie et al.
Summary: In this study, afterglow OLEDs were constructed by host-guest doping using excellent carrier transporting materials as the host and commendable OURTP emitters as the guest. The resulting OLEDs exhibited high external quantum efficiency, luminance, and OURTP lifetimes, with stable afterglow emission and carrier transport ability.
APPLIED PHYSICS REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Baozhong Lu et al.
Summary: This study reports a natural hemicellulose material with tunable organic phosphorescence. The material exhibits long lifetime comparable to artificial phosphors and can be industrially produced. The tunable phosphorescence is attributed to fixed oxygen group clusters within a rigid polysaccharide environment. The material's distinguishable color evolution and duration of afterglow make it useful for high security level applications such as anticounterfeiting and data encryption.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Xiao Meng et al.
Summary: Polymer-based room temperature phosphorescence is a promising field for applications such as organic light-emitting diodes, sensors, data encryption, and anti-counterfeiting. By introducing a rigid polymer network during polymerization, long-lived room temperature phosphorescence materials based on polycyclic aromatic hydrocarbons (PAHs) were successfully achieved, displaying high stability even under aqueous conditions.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Ya-Chuan Liang et al.
Summary: Water-soluble red afterglow imaging agents based on ecofriendly nanomaterials have been developed, utilizing CNDs and RhB to create a CNDs-RhB@silica nanocomposite, achieving efficient energy transfer and the best red afterglow performance.
Article
Chemistry, Multidisciplinary
Zece Zhu et al.
Summary: Organic persistent luminescence is usually emitted from synthesized materials containing pi units. In this study, an effective method was proposed to enhance the luminescence of cellulose, a natural renewable material free of pi units. It was found that removing the crystal water in cellulose increased the compactness of molecular packing and stabilized the hydroxyl clusters of polysaccharide chains, leading to significant enhancement of phosphorescence with lifetime up to subseconds. This dehydration induced luminescence enhancement was not only found in purified cellulose but also in cellulose-contained substances such as papers, cottons, and many other plant tissues, indicating easier access to cellulose-based luminescence materials without chemical purification.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Yongfeng Zhang et al.
Summary: A feasible strategy has been presented to achieve ultraviolet irradiation-responsive ultralong room-temperature phosphorescence in amorphous polymer materials, allowing for tuned phosphorescence lifetime and demonstrating promising applications in smart flexible luminescent materials and sensors with dynamically controlled phosphorescence.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Zi-Ang Yan et al.
Summary: This study introduces a new general strategy for designing and developing pure organic RTP materials starting from an existing library of organic dyes without the need for complicated chemical synthesis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Environmental
Qi Feng et al.
Summary: A method for preparing color-tunable ultralong-lifetime room temperature phosphorescence (URTP) materials has been developed successfully, resulting in a series of URTP boron-doped carbon dots. Among these, BD50 exhibits significant multi-color emission and phosphorescence, with high photoluminescence quantum yield and phosphorescence quantum yield, suitable for applications in anti-counterfeiting and information encryption.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Yongfeng Zhang et al.
Summary: The research has successfully developed polymer-based room-temperature phosphorescence materials using a hydrogen-bonding and coassembly strategy, resulting in large-area, flexible, transparent, and long-lived RTP systems. By doping different organic chromophores into PVA films, long-lived phosphorescence emission and high luminance have been achieved, showcasing the potential for large-area, flexible, and transparent emitting materials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Wenpeng Ye et al.
Summary: The study demonstrates a chemical strategy for achieving high-performance blue phosphorescence by confining isolated chromophores in ionic crystals, forming high-density ionic bonds between the cations of ionic crystals and the carboxylic acid groups of the chromophores to create a segregated molecular arrangement with negligible inter-chromophore interactions.
Article
Multidisciplinary Sciences
Jianhui Yang et al.
Summary: The paper introduces a class of aggregation-induced emission fluorescence probes, solving the issue of background signal interference in imaging by using AIEgen room-temperature phosphors with long emission lifetimes, developed through the introduction of an aromatic carbonyl to a tetraphenylpyrrole molecule. These materials exhibit promising properties for biological imaging and diversify the existing pool of bioimaging agents, with the potential for inspiring the development of bioprobes in the future.
NATURE COMMUNICATIONS
(2021)
Review
Materials Science, Multidisciplinary
Zhu Wu et al.
Summary: This review discusses organic molecular materials that exhibit long triplet lifetimes at room temperature, examining whether they originate from a molecular or multi-component system. In purely organic phosphors, heteroatoms are typically introduced into the backbone to enhance the singlet-triplet ISC rate constant. In multi-component systems, the implementation of strategies such as host-guest interactions, polymer matrix, copolymerization, and supramolecular assembly create a rigid matrix that restricts nonradiative pathways, resulting in ultralong RTP.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Zhonghao Wang et al.
ADVANCED MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Jian-Xin Wang et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Multidisciplinary Sciences
R. Tian et al.
Article
Chemistry, Multidisciplinary
Xueyu Dou et al.
ADVANCED MATERIALS
(2020)
Review
Chemistry, Inorganic & Nuclear
Qian-Chong Zhang et al.
COORDINATION CHEMISTRY REVIEWS
(2019)
Article
Polymer Science
Lin-Lin Du et al.
CHINESE JOURNAL OF POLYMER SCIENCE
(2019)
Article
Materials Science, Multidisciplinary
Junru Chen et al.
ADVANCED OPTICAL MATERIALS
(2019)
Article
Optics
Long Gu et al.
Article
Chemistry, Multidisciplinary
Yusheng Zhou et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
Article
Multidisciplinary Sciences
Weijun Zhao et al.
NATURE COMMUNICATIONS
(2019)
Article
Materials Science, Multidisciplinary
Przemyslaw Data et al.
JOURNAL OF MATERIALS CHEMISTRY C
(2019)
Article
Chemistry, Multidisciplinary
Xiang Ma et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2018)
Article
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Lifang Bian et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Review
Chemistry, Multidisciplinary
Nan Gan et al.
ADVANCED FUNCTIONAL MATERIALS
(2018)
Review
Chemistry, Multidisciplinary
Massimo Baroncini et al.
CHEMICAL COMMUNICATIONS
(2017)
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Jinbei Wei et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2016)
Review
Chemistry, Multidisciplinary
Ju Mei et al.
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Zhongfu An et al.
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Yi Liu et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2011)
Article
Chemistry, Physical
Ling Yuan et al.
JOURNAL OF PHYSICAL CHEMISTRY A
(2010)
Article
Chemistry, Inorganic & Nuclear
E. A. Il'inchik et al.
JOURNAL OF STRUCTURAL CHEMISTRY
(2005)
