A New Strategy to Enhance Room Temperature Phosphorescence Performance in Physical Doping Polymer System DOI

Shuting Li,

Yanwen Qi,

Aisen Li

и другие.

Advanced Optical Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 29, 2024

Abstract Physical doping is a general and effective strategy to fabricate host‐guest room temperature phosphorescence (RTP) polymer materials. However, some aggregates of phosphors will appear due their limited solubility phase separation in matrix, resulting unstable and/or poor RTP property. In this work, new strategy, the utilization cyclodextrins with fit cavity size, proposed improve dispersion enhance performance both covalent ionic bond system. The resultant high Förster resonance energy transfer (FRET) efficiency ( Φ FRET ) outstanding confirmed that added can effectively disperse fluorescence dye (guest) covalently modified sodium alginate (SA‐R) matrix. Thanks introduced “ ruler”, distance between donor acceptor be measured, accompanying afterglow color SA‐R films changing from green red. For SA‐NpC@RhB, introduction β‐CD up 57.4%, corresponding photoluminescence quantum yield PL as 21.15%. for SA‐NpC/γ‐CD@SR101 ≈8.5 times enhanced, rising 0.87% 19.13%. Besides, also successfully applied into system (SA/R), SA/BDA/γ‐CD@RhB reach 24.05%. Furthermore, these materials good are multiple information encryption, optical storage, anti‐counterfeiting.

Язык: Английский

Achieving Efficient Blue Room‐Temperature Phosphorescence Through Self‐Doping of Similar Structures and Polymer Assistance DOI Open Access
Xiaoqiang Zhao, Xiao He,

Yide Gao

и другие.

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
Dual-ligand chiral MOFs exhibiting circularly polarized room temperature phosphorescence for anti-counterfeiting DOI
Huifang Zheng, Qingqing Wang, Xinchao Wang

и другие.

Science China Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 3, 2025

Язык: Английский

Процитировано

0
Modulating room-temperature phosphorescence of D-π-A luminogens via methyl substitution, positional isomerism, and host–guest doping DOI
Yang Zhu,

Meiling Pan,

Weirao Ji

и другие.

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Год журнала: 2025, Номер 330, С. 125763 - 125763

Опубликована: Янв. 19, 2025

Язык: Английский

Процитировано

0
How Intermolecular Interaction and Hydrostatic Pressure Affect the Organic Room Temperature Phosphorescence Properties: A QM/MM Study DOI
Yuanyuan Xu, Huanling Liu, Kunwei Pang

и другие.

Chinese Journal of Physics, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
Ultra-stable and colorful persistent organic phosphorescence of host-guest composites under solution, UV irradiation, and high temperature DOI

Lei-lei Guan,

Fan Wu,

Xiaolang Wang

и другие.

Microchemical Journal, Год журнала: 2025, Номер unknown, С. 113505 - 113505

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Hole-Transporting Materials Based on a Fluorene Unit for Efficient Optoelectronic Devices DOI Open Access

Maoli Man,

Mingming Zhao, Yujia Lyu

и другие.

Materials, Год журнала: 2024, Номер 17(22), С. 5417 - 5417

Опубликована: Ноя. 6, 2024

Solution-processable hole-transporting materials (HTMs) that form highly soluble films and thermally stable amorphous states are essential for advancing optoelectronic devices. However, the currently commercialized HTM, N,N-bis(3-methylphenyl)-N,N0-bis(phenyl)benzidine (TPD), exhibits poor solubility limited carrier transport when spin-coated into thin films. Herein, to address these issues, a fluorenyl group was ingeniously incorporated series of molecules structurally similar TPD. The resulting compounds, namely, 2,7-di-(N,N-diphenylamino)-9,9-dimethyl-9H-fluorene (DDF), 2,7-di-p-tolyl-(N,N-diphenylamino)-9,9-dimethyl-9H-fluorene (2M-DDF), 2,7-di-tetra-p-tolyl-(N,N-diphenylamino)-9,9-dimethyl-9H-fluorene (4M-DDF), offered tunable energy levels, transport, crystallinity, steric configuration via adjustment number terminal methyl groups. Owing its satisfactory performance, 2M-DDF can serve as an effective alternative TPD in OLED devices well guest molecule host-guest systems long-afterglow materials. Devices incorporating with Alq

Язык: Английский

Процитировано

1
A New Strategy to Enhance Room Temperature Phosphorescence Performance in Physical Doping Polymer System DOI

Shuting Li,

Yanwen Qi,

Aisen Li

и другие.

Advanced Optical Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 29, 2024

Abstract Physical doping is a general and effective strategy to fabricate host‐guest room temperature phosphorescence (RTP) polymer materials. However, some aggregates of phosphors will appear due their limited solubility phase separation in matrix, resulting unstable and/or poor RTP property. In this work, new strategy, the utilization cyclodextrins with fit cavity size, proposed improve dispersion enhance performance both covalent ionic bond system. The resultant high Förster resonance energy transfer (FRET) efficiency ( Φ FRET ) outstanding confirmed that added can effectively disperse fluorescence dye (guest) covalently modified sodium alginate (SA‐R) matrix. Thanks introduced “ ruler”, distance between donor acceptor be measured, accompanying afterglow color SA‐R films changing from green red. For SA‐NpC@RhB, introduction β‐CD up 57.4%, corresponding photoluminescence quantum yield PL as 21.15%. for SA‐NpC/γ‐CD@SR101 ≈8.5 times enhanced, rising 0.87% 19.13%. Besides, also successfully applied into system (SA/R), SA/BDA/γ‐CD@RhB reach 24.05%. Furthermore, these materials good are multiple information encryption, optical storage, anti‐counterfeiting.

Язык: Английский

Процитировано

0