Engineering room‐temperature phosphorescence in purely organic materials through isomeric molecular packing and intermolecular interactions DOI Creative Commons
Mengke Li, Zijian Chen,

Kunkun Liu

и другие.

FlexMat., Год журнала: 2025, Номер unknown

Опубликована: Июнь 6, 2025

Abstract Achieving control over room‐temperature phosphorescence (RTP) performance through delicate molecular engineering and intermolecular interactions is of great significance for advancing RTP research. In this study, a series isomers containing up to four compounds were synthesized by integrating tetrahydroquinoline substituent at different positions phenoxathiine core. All exhibit afterglow emission in the crystalline state, attributed diverse that stabilize triplet excitons. Notably, variation substitution leads distinct interactions, enabling fine‐tuned properties strategic engineering. Among them, isomer 2,1‐PXTACR, which exhibits robust achieves an exceptional duration exceeding 5 s average lifetime 310 ms. Furthermore, specific role solid‐state environment stabilizing excitons systematically elucidated work. The modulation strategy established herein provides valuable insights into structure‐property relationships governing materials offers rational approach developing high‐performance purely organic phosphorescent systems.

Язык: Английский

Stimulus‐Responsive Emission via Dynamic Triplet Energy Transfer in Organic Room‐Temperature Phosphorescence Glass DOI

Zixuan Xu,

Wenbin Chen,

Keyao Chen

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 8, 2025

Abstract Dynamic organic room‐temperature phosphorescence (RTP) glasses with color tunability offer significant potential for practical applications due to their high transparency and excellent machinability. In this study, efficient dynamic RTP properties are used as triplet donors, combined commercially available chromophores singlet/triplet acceptors, successfully fabricate a series of host‐guest doping color‐tunable afterglow responses external stimuli. The energy transfer mechanisms, including triplet‐to‐singlet resonance Dexter‐type triplet‐to‐triplet transfer, confirmed using state‐of‐the‐art femtosecond time‐resolved transient absorption spectroscopy. These demonstrate transparency, good machinability, responsiveness study highlights in large‐area glass fabrication, data encryption, flexible displays. This work not only provides simple design principle developing novel materials but also promotes the information encryption optoelectronics.

Язык: Английский

Процитировано

0
Day‐Long Organic Persistent Luminescence in Flexible Polymeric Materials DOI

Longming Jin,

Wanqi Mo,

Ziyi Wang

и другие.

Angewandte Chemie, Год журнала: 2025, Номер unknown

Опубликована: Апрель 26, 2025

Abstract The progress in organic afterglow materials has drawn significant attention due to their extensive applications fields such as optoelectronics, anti‐counterfeiting, and bioimaging. Nonetheless, a general limitation of is short emission lifetimes, typically spanning from milliseconds seconds, which creates substantial challenge developing day‐long (DOA). In this study, DOA system demonstrated through the incorporation electron donor/acceptor exciplexes. Polyethylene naphthalate used for both acceptor charge storage units, coupling with spirobifluorene‐carbazole derivative donor, providing effective separations under UV‐light sunlight excitation. resulting polymers demonstrate an exceptional bluish‐green that endures over 28 h ambient conditions, setting new record longest duration polymeric materials. Moreover, DOA‐doped polymers, films fibers, exhibit outstanding flexibility transparency, making them highly suitable flexible technologies wearable devices.

Язык: Английский

Процитировано

0
Day‐Long Organic Persistent Luminescence in Flexible Polymeric Materials DOI

Longming Jin,

Wanqi Mo,

Ziyi Wang

и другие.

Angewandte Chemie International Edition, Год журнала: 2025, Номер unknown

Опубликована: Апрель 26, 2025

Abstract The progress in organic afterglow materials has drawn significant attention due to their extensive applications fields such as optoelectronics, anti‐counterfeiting, and bioimaging. Nonetheless, a general limitation of is short emission lifetimes, typically spanning from milliseconds seconds, which creates substantial challenge developing day‐long (DOA). In this study, DOA system demonstrated through the incorporation electron donor/acceptor exciplexes. Polyethylene naphthalate used for both acceptor charge storage units, coupling with spirobifluorene‐carbazole derivative donor, providing effective separations under UV‐light sunlight excitation. resulting polymers demonstrate an exceptional bluish‐green that endures over 28 h ambient conditions, setting new record longest duration polymeric materials. Moreover, DOA‐doped polymers, films fibers, exhibit outstanding flexibility transparency, making them highly suitable flexible technologies wearable devices.

Язык: Английский

Процитировано

0
Red/near-infrared phosphorescence from N-alkyl dibromomaleimides enabled by conformational rigidification of emissive clusters DOI
Qiang Zhang,

Zhuojie Yin,

Tianwen Zhu

и другие.

Dyes and Pigments, Год журнала: 2025, Номер unknown, С. 112904 - 112904

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0
Multifunctional cardanol-based room-temperature phosphorescent material with multi-stimulus-responsive shape-memory for anti-counterfeiting and encryption DOI
Caiying Bo,

Yiran Fu,

Miao Li

и другие.

Materials Horizons, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

A sustainable cardanol-based RTP with multi-responsive shape-memory is achieved by integrating rigidity dynamic networks. It shows a 12 s afterglow, retains stable in H 2 O, HCl and NaOH, enables programmable 2D/3D anti-counterfeiting.

Язык: Английский

Процитировано

0
Stretchable, Ultralong Room‐Temperature Phosphorescence Poly(urethane‐urea) Elastomer Resistant to Humidity and Heat DOI
Ming Chen, Bowen Liu,

Jinping Ren

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 28, 2025

Abstract Polymeric room‐temperature phosphorescence (RTP) materials exhibiting facile processability, high thermal stability, and environmental compatibility have garnered considerable attention. However, achieving excellent stretchability in simultaneity with ultralong RTP remains challenging because most polymers rely on rigid structures inherently poor tensile properties. Herein, a stretchable, polyurethane is prepared through copolymerizing novel phosphor dihydroxy‐functionalized indolocarbazole, 4,4′‐methylenedicyclohexyl diisocyanate (HMDI), poly(tetrahydrofuran) (PTMEG 2000), adipic dihydrazide (AD). The covalently bonded to the backbone, which facilitates stabilization of triplet excitons achieves RTP. obtained copolymers exhibit maximum strain 1400% longest lifetime 1888 ms. Additionally, polyurethanes different afterglow colors are by varying molecular structure phosphor. Notably, also display resistance humidity heat. This work may provide new option for development materials.

Язык: Английский

Процитировано

0
Iridium(III)-Catalyzed C–H Bond Activation of Phenols to Build Up Phenothiazine-Containing 2-(2-Hydroxyphenyl)azoles: Access to Single-Molecule White-Light Materials and Room-Temperature Phosphorescence Materials DOI

Guoliang Yang,

Shu Kai Zhao,

Min Zhang

и другие.

Organic Letters, Год журнала: 2025, Номер unknown

Опубликована: Июнь 5, 2025

Reported herein is the first example of iridium(III)-catalyzed C-H bond activation phenols to construct phenothiazine-containing 2-(2-hydroxyphenyl)azole-based π-conjugated luminescent materials. The novel 2-(2-hydroxyphenyl)azoles exhibit distinct white-light emission, which could be fabricated as low-cost and robust organic white-light-emitting diodes. Additionally, doped system 2-(2-hydroxyphenyl)azole@triphenylamine displays an ultralong lifetime afterglow, further used in encryption.

Язык: Английский

Процитировано

0
Engineering room‐temperature phosphorescence in purely organic materials through isomeric molecular packing and intermolecular interactions DOI Creative Commons
Mengke Li, Zijian Chen,

Kunkun Liu

и другие.

FlexMat., Год журнала: 2025, Номер unknown

Опубликована: Июнь 6, 2025

Abstract Achieving control over room‐temperature phosphorescence (RTP) performance through delicate molecular engineering and intermolecular interactions is of great significance for advancing RTP research. In this study, a series isomers containing up to four compounds were synthesized by integrating tetrahydroquinoline substituent at different positions phenoxathiine core. All exhibit afterglow emission in the crystalline state, attributed diverse that stabilize triplet excitons. Notably, variation substitution leads distinct interactions, enabling fine‐tuned properties strategic engineering. Among them, isomer 2,1‐PXTACR, which exhibits robust achieves an exceptional duration exceeding 5 s average lifetime 310 ms. Furthermore, specific role solid‐state environment stabilizing excitons systematically elucidated work. The modulation strategy established herein provides valuable insights into structure‐property relationships governing materials offers rational approach developing high‐performance purely organic phosphorescent systems.

Язык: Английский

Процитировано

0