Journal of Energy Storage, Год журнала: 2024, Номер 104, С. 114581 - 114581
Опубликована: Ноя. 18, 2024
Язык: Английский
Small, Год журнала: 2024, Номер 20(43)
Опубликована: Июнь 22, 2024
Abstract Hydrogel is a significant type of building block for constructing macroscopic assemblies, the construction which usually entails incorporation supramolecular groups. However, group recognition specific and only suitable assembling two particular modified hydrogels, but not versatile strategy. Herein, universal strategy without modification process proposed using polyacrylic acid (PAA) hydrogel as adhesive layer to assemble different kinds hydrogels. Furthermore, assemblies with various shapes multi‐stimuli responsiveness are constructed by stimuli‐responsive hydrogels PAA hydrogel. Therefore, able complete bending motions upon applying corresponding stimuli. This provides approach also shows potential developing soft robots functions.
Язык: Английский
Процитировано
9
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Окт. 28, 2024
Abstract Ultralow temperature storage has sparked considerable attention with the development of economy, showing promising applications ranging from biomedical to national defense and other fields. However, ultralow detection is constrained by brittleness current materials at low temperatures complexity techniques. Consequently, challenge exists in finding efficient solutions material tolerance issues achieving rapid temperature. Herein, a novel flexible cross–linked polymer TPTA@PU film long afterglow, high phosphorescence quantum efficiency, excellent mechanical properties are successfully fabricated. Interestingly, obtained films demonstrate notable thermoresponsive behavior, afterglow color shifting rapidly blue green within ranges 80 280 K. Additionally, there positive linear correlation between RGB values corresponding Based on these prominent features, an sensor realized utilizing as elements. This work can be expected provide more inspiration possibilities for using RTP cutting‐edge field.
Язык: Английский
Процитировано
9
Advanced Functional Materials, Год журнала: 2024, Номер 34(46)
Опубликована: Июль 9, 2024
Abstract In recent years, there is a growing interest in developing ultralong organic room‐temperature phosphorescence (ORTP) with lifetimes the range of seconds. As one important three primary colors, blue ORTP an indispensable core component RTP regulation and application, however, large Stokes shift characteristics pose certain challenges ORTP. Here, new family phosphors are synthesized realized through crystal assembly water phase. Remarkably, compared to materials obtained phases, enabled long‐lived up 2.3 s quantum yield reached as high 29.27%. addition efficient green form, such dark possessed thermal stability flexible tunability. Moreover, superiority selected components demonstrated by comparing them polymer proposed show great potential programmable information encryption/anti‐counterfeiting.
Язык: Английский
Процитировано
8
Advanced Optical Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 28, 2025
Abstract Blue is one of the three primary colors, and it a crucial element in regulation application organic room‐temperature phosphorescence (ORTP). However, considerable Stokes shift small molecules presents challenge for creating blue afterglow materials. To address this, host‐guest‐doped materials are prepared by selecting compounds with similar structures self‐doping. This method effectively regulated long‐lasting phosphorescence. Additionally, persistent‐RTP long‐persistent luminescence (LPL) properties can be further enhanced incorporating rigid or flexible polymer network, dense environment between host guest. Remarkably, lifetime duration polymer‐assisted doped ≈5 times greater than those host‐guest crystal Apart from its high efficiency, environmental friendliness, easy synthesis, this ORTP material boasts thermal stability flexibility. Furthermore, demonstrates potential applications such as information encryption anti‐counterfeiting across various media, including paper, cotton thread, leaves.
Язык: Английский
Процитировано
1
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Авг. 26, 2024
Abstract Phosphorescent supramolecular hydrogels are currently a prevalent topic for their great promise in various photonic applications. Herein, an efficient near‐infrared (NIR) phosphorescence hydrogel is reported via the hierarchical assembly strategy aqueous solution, which fabricated from amphiphilic bromonaphthalimide pyridinium derivative (G), exfoliated Laponite (LP) nanosheets, and polymeric polyacrylamide (PAAm). Initially, G spontaneously self‐aggregates into spherical nanoparticles covered with positively charged units emits single fluorescence at 410 nm. Driven by electrostatic interactions negatively subsequently function as cross‐linked binders coassemble LP engendered red room‐temperature (RTP) up to 620 Benefiting hydrogen‐bonding interactions‐mediated physical cross‐linkage, further introduction of PAAm not only significantly elevates mechanical strength showing fast self‐healing capability, but also increases lifetime 2.49 4.20 ms, especially generating even higher temperature ( τ 363 K = 2.46 ms). Additionally, RTP energy transfer occurs after doping small amount organic dye heptamethine cyanine (IR780) acceptor hydrogels, resulting long‐lived NIR emission 823 nm high donor/acceptor ratio, successfully applied cell labeling window.
Язык: Английский
Процитировано
6
Nature Communications, Год журнала: 2024, Номер 15(1)
Опубликована: Дек. 4, 2024
Room temperature phosphorescent (RTP) hydrogels exhibit great potential but show poor mechanical performance (Tensile strengthen <1 MPa) and non-tunable RTP performance, hindering their practical applications. Here, we develop wood hydrogel (W-hydrogel) by the in situ polymerization of acrylamide presence delignified wood. As a result molecular interactions between components polyacrylamide, W-hydrogel tensile 38.4 MPa green emission with lifetime 32.5 ms. Moreover, strength are increased to 153.8 69.7 ms, upon treating ethanol. Significantly, is switched alternating "ethanol water" treatments. Additionally, used as energy donor order produce red afterglow using RhB via an transfer process. Taking advantage these properties, processed into multiple hydrogel-based luminescent materials. Hydrogels room phosphorescence have number applications, properties can limit potential. authors report wood-based phosphorescence,
Язык: Английский
Процитировано
6
ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(32), С. 42794 - 42801
Опубликована: Авг. 1, 2024
The development of pure organic room-temperature phosphorescent (RTP) materials greatly facilitates the integrated application luminescent materials. Herein, a type photoactivated red RTP material was constructed by simply doping 4-(benzo[c][1,2,5]thiadiazol-5-ylthio)benzonitrile (p-NNS) into poly(methyl methacrylate) (PMMA) matrix. obtained film realized controllable photoactivation process regulation diverse solvent levels, demonstrating potential advantages in optical anti-counterfeiting applications. Furthermore, properties doped were utilized to detect oxygen content from 2.00% 4.90%, which revealed exact consumption ambient under UV light. Every CIE point luminescence corresponds certain content, illustrating visualization content. remarkable effect and this work will provide competitive for further
Язык: Английский
Процитировано
5
Progress in Materials Science, Год журнала: 2024, Номер 148, С. 101372 - 101372
Опубликована: Сен. 6, 2024
Язык: Английский
Процитировано
5
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Ноя. 5, 2024
Abstract Some marine animals form long‐lived luminescence for predation, communication, camouflage, and anti‐predation. These demonstrate soft nature, sustainable glowing, underwater emission, which are difficult to achieve in synthetic room temperature phosphorescence (RTP) materials. Inspired by these animals, here the study reports RTP hydrogels that show (lifetime >500 ms afterglow >10 s) water. Exceptional mechanical properties simultaneously achieved, including tensile strength of 5.1 MPa, strain 452%, toughness 19.3 MJ m −3 . The key this achievement lies situ phase separation microarchitecture formed between polyacrylamide (PAM) its partial hydrolysates, confines motions polymer chains protects vulnerable triplet excitons from quenching Such a strategy shows merits facile fabrication without laborious synthesis. In addition, offer repeatable photoprinting highly stability water, providing versatile platform applications materials, information encryption camouflage animals.
Язык: Английский
Процитировано
4
Advanced Optical Materials, Год журнала: 2024, Номер unknown
Опубликована: Ноя. 29, 2024
Abstract Designing room‐temperature phosphorescent (RTP) hydrogels presents a unique challenge in comparison to RTP polymeric films and powders, due the quenching of phosphorescence by water molecules within hydrogel their inherent softness. This study first example intrinsic without doping luminophores or stiffening agents. The is synthesized copolymerizing acrylamide (Am) with N ‐acryloyl‐aminoundecanoic acid (NAUA). hydrophobic NAUA induces phase separation network glass transition can stiffen structure constrain mobility chain segments. Under such condition, clustering amide carboxylic groups triggers emission persistent afterglow exceeding 1.5 s, which as good reported dopants. When heated above its temperature, modulus drops quickly from 20.0 0.026 MPa 2 s also diminishes. Taking advantage temperature‐switchable rigidity behavior, are endowed functions shape memory, temperature‐sensing, information concealment.
Язык: Английский
Процитировано
4