Phototunable phosphorescence energy transfer based on photodimerization of coumarin-12-crown-4 accelerated by γ-cyclodextrin DOI
Hui–Juan Wang, Yantao Li, Ming Shao

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158772 - 158772

Published: Dec. 1, 2024

Language: Английский

Achieving Efficient Dark Blue Room‐Temperature Phosphorescence with Ultra‐Wide Range Tunable‐Lifetime DOI
Lei Zhou,

Jinming Song,

Zhenyi He

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(22)

Published: March 26, 2024

Abstract Tunable‐lifetime room‐temperature phosphorescence (RTP) materials have been widely studied due to their broad applications. However, only few reports achieved wide‐range lifetime modulation. In this work, ultra‐wide range tunable‐lifetime efficient dark blue RTP were realized by doping methyl benzoate derivatives into polyvinyl alcohol (PVA) matrix. The lifetimes of the doped films can be increased from 32.8 ms 1925.8 ms. Such wide modulation is extremely rare in current reports. Moreover, emission 4‐hydroxybenzoate‐doped film located region and quantum yield reaches as high 15.4 %, which broadens applications organic optoelectronic information. Further studies demonstrated that reason for tunable was magnitude electron‐donating ability substituent group modulates HOMO–LUMO singlet‐triplet energy gap derivatives, well non‐covalent interactions with PVA. potential luminescent displays optical anti‐counterfeiting these high‐performance conducted.

Language: Английский

Citations

34
Anti-Kasha triplet energy transfer and excitation wavelength dependent persistent luminescence from host-guest doping systems DOI Creative Commons
Weiwei Xie, Wenbin Huang,

Jietai Li

et al.

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Dec. 7, 2023

Anti-Kasha's process in organic luminogens has attracted many attentions since its discovery. However, only limited examples of anti-Kasha's rule have been reported and anti-Kasha triplet energy transfer (ET) is even less-touched. Benefiting from rule, this work provided an efficient strategy to realize excitation wavelength dependent (Ex-De) afterglow a host-guest system. The host almost imperceptible RTP upon 365 nm guest totally inactive, while the doping system exhibits Ex-De with improved quantum yields. Anti-Kasha ET realized higher excited state T2 lowest singlet S1 aggregated/unimolecular guest. efficiency could be tuned by simply changing processing methods guide adopt denser or looser intermolecular packing. endows multiple stimuli-responsive properties, including afterglow, mechano-, thermal-triggered behaviors. corresponding applications these properties are also information anti-counterfeiting display.

Language: Английский

Citations

33
The dual-band emission with long-lived thermally activated delayed fluorescence and room temperature phosphorescence by trace ingredient incorporation DOI

Lijuan Shi,

Jiaqi Liu, Lei Ma

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 493, P. 152492 - 152492

Published: May 23, 2024

Language: Английский

Citations

12
Synthesis and Encapsulation of Naphthopyrans to Afford Photochromic Dye Microcapsules DOI
Yunfei Wang, Yimei Chen, Zhe Wang

et al.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136217 - 136217

Published: Jan. 1, 2025

Language: Английский

Citations

1
Achieving Colorful Ultralong Organic Room-Temperature Phosphorescence by Precise Modification of Nitrogen Atoms on Phosphorescence Units DOI

Huiwen Jin,

Xue Zhang,

Jiaxin Ma

et al.

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(47), P. 54732 - 54742

Published: Nov. 15, 2023

We successfully tune ultralong organic room-temperature phosphorescence (UORTP) by a simple strategy of precisely modifying nitrogen atoms on Phosphorescence Units, and colorful can be achieved. for the first time investigate structure-function relationship between properties molecular structures Units. With BCz BCz-1 as comparison, eight new Units were synthesized introducing one or two to naphthalene moiety. For all 10 their in PMMA film should assigned monomer from intrinsic T1 decay. series I (BCz, NBCz-1, NBCz-2, NBCz-3, NBCz-4, NBCz-5, NBCz-6), atom moiety significantly affect effect is quite complicated. modification inner ring, energy level NBCz-1 decreases, red shift UORTP occurs while NBCz-2 increases blue happens. outer no color change observed NBCz-3 but lifetimes vary notably due different intersystem crossing efficiencies; site approaches central five-member levels NBCz-5 NBCz-6 decrease, shifts dramatically. II 2NBCz, BCz-1, 2NBCz-1), six-member ring reduces excitons leads incredible 2NBCz surprisingly rise 2NBCz-1. Under condition proper sites, it true that more additional atoms, red-shifted phosphorescence. This study may expand our knowledge lay foundation its future applications.

Language: Английский

Citations

19
Extending the molecular conjugation of phosphorescence units to accurately modulate ultralong organic room temperature phosphorescence DOI

Jingjuan Bai,

Guangkuo Dai,

Huiwen Jin

et al.

Journal of Materials Chemistry C, Journal Year: 2023, Volume and Issue: 11(46), P. 16325 - 16332

Published: Jan. 1, 2023

Extending molecular conjugation accurately modulates UORTP in a series of phosphorescence units. (Br)PyCz shows red or NIR ultralong as extended reduces the T 1 energy level and results redshift. A rigid PVA matrix heavy Br atoms enhance UORTP.

Language: Английский

Citations

16
Efficient room-temperature phosphorescence with tunable lifetime through light modulation from flexible polymer films DOI
Jiaju Shi, Wen‐Jie Tao, Yusheng Zhou

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 475, P. 146178 - 146178

Published: Sept. 20, 2023

Language: Английский

Citations

14
Confining monochromophore in dynamic polymer network for multi-stimuli responsive fluorescence-phosphorescence dual-emission DOI
Yu Yi, Muqing Si, Wei Lü

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 478, P. 147271 - 147271

Published: Nov. 10, 2023

Language: Английский

Citations

14
Achieving Efficient Dark Blue Room‐Temperature Phosphorescence with Ultra‐Wide Range Tunable‐Lifetime DOI
Lei Zhou,

Jinming Song,

Zhenyi He

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(22)

Published: March 26, 2024

Abstract Tunable‐lifetime room‐temperature phosphorescence (RTP) materials have been widely studied due to their broad applications. However, only few reports achieved wide‐range lifetime modulation. In this work, ultra‐wide range tunable‐lifetime efficient dark blue RTP were realized by doping methyl benzoate derivatives into polyvinyl alcohol (PVA) matrix. The lifetimes of the doped films can be increased from 32.8 ms 1925.8 ms. Such wide modulation is extremely rare in current reports. Moreover, emission 4‐hydroxybenzoate‐doped film located region and quantum yield reaches as high 15.4 %, which broadens applications organic optoelectronic information. Further studies demonstrated that reason for tunable was magnitude electron‐donating ability substituent group modulates HOMO–LUMO singlet‐triplet energy gap derivatives, well non‐covalent interactions with PVA. potential luminescent displays optical anti‐counterfeiting these high‐performance conducted.

Language: Английский

Citations

4
Fine Tuning of Hydrogen Bonding Interaction on Boosting the Room-Temperature Phosphorescence in Organic Host–Guest System DOI
Faxu Lin,

Jinzheng Chen,

Tian Qin

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1916 - 1923

Published: Feb. 17, 2025

Organic room-temperature phosphorescence (RTP) materials have demonstrated great potential applications in optoelectronics, anticounterfeiting, and biomedicine fields. Among them, the RTP properties of host–guest systems can be easily regulated by changing their component parameters, which has attracted widespread attention. However, key factor hosts (crystalline or noncovalent interaction network) for boosting emission at room temperature was still unclear. Herein, a triphenyl phosphor estradiol system heated to remove crystal water then cooled turn it into powder. This enabled afterglow brightness improve more than 90-fold phosphorescent quantum yield over 700-fold. Further studies indicated that hydrogen bonding interactions estradiol's −OH group were tuned during these processes, from with guests constructing strong network guests. The triplet excitons thus effectively stabilized, which, coupled suitable T1 energy level host, could significantly enhance amorphous system. work demonstrates fine-tuning inside doped boost its phosphorescence. It also substantiates is important crystalline efficient

Language: Английский

Citations

0