Pressure-Induced Blue-Shifted and Enhanced Emission: A Cooperative Effect between Aggregation-Induced Emission and Energy-Transfer Suppression

2020 ◽  
Vol 142 (3) ◽  
pp. 1153-1158 ◽  
Author(s):  
Haichao Liu ◽  
Yarong Gu ◽  
Yuxiang Dai ◽  
Kai Wang ◽  
Shitong Zhang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Cooperative Effect ◽  
Aggregation Induced Emission

Efficient artificial light-harvesting systems based on aggregation-induced emission constructed in supramolecular gels

Soft Matter ◽  
2021 ◽  
Author(s):  
Xinxian Ma ◽  
bo qiao ◽  
Jinlong Yue ◽  
JingJing Yu ◽  
yutao geng ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Rhodamine B ◽  
Fluorescent Dyes ◽  
Light Harvesting ◽  
Artificial Light ◽  
Efficient Energy Transfer ◽  
Aggregation Induced Emission ◽  
Efficient Energy ◽  
Harvesting Systems ◽  
Acyl Hydrazone

Based on a new designed acyl hydrazone gelator (G2), we developed an efficient energy transfer supramolecular organogel in glycol with two different hydrophobic fluorescent dyes rhodamine B (RhB) and acridine...

Steric Hindrance, Electronic Communication, and Energy Transfer in the Photo- and Electroluminescence Processes of Aggregation-Induced Emission Luminogens

2010 ◽  
Vol 114 (17) ◽  
pp. 7963-7972 ◽  
Author(s):  
Zujin Zhao ◽  
Shuming Chen ◽  
Jacky W. Y. Lam ◽  
Cathy K. W. Jim ◽  
Carrie Y. K. Chan ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Steric Hindrance ◽  
Electronic Communication ◽  
Aggregation Induced Emission

Intrazeolite photochemistry. II. Evidence for site inhomogeneity from studies of aromatic ketone phosphorescence

1985 ◽  
Vol 63 (6) ◽  
pp. 1308-1314 ◽  
Author(s):  
H. L. Casal ◽  
J. C. Scaiano
Keyword(s):  
Energy Transfer ◽  
Luminescent Properties ◽  
Cooperative Effect ◽  
Type Ii ◽  
Oxygen Quenching ◽  
Aromatic Ketones ◽  
Transfer Processes ◽  
Norrish Type ◽  
Triplet Lifetime ◽  
Conformational Restrictions

The luminescent properties of several aromatic ketones included in the hydrophobic zeolite Silicalite have been examined. Acetophenone, benzophenone, and β-phenylpropiophenone show readily detectable phosphorescence; by contrast, valerophenone does not luminesce, but undergoes the Norrish Type II reaction. Thus, irradiated samples of valerophenone in Silicalite show phosphorescence due to the accumulation of acetophenone. In the case of β-phenylpropiophenone the triplet lifetime is ca. 100 000 times longer than the solution value, suggesting severe conformational restrictions. Co-inclusion of acetophenone with various substrates and oxygen quenching studies indicate that Silicalite has at least two distinct classes of inclusion sites. In one of them energy transfer processes are rapid and efficient, suggesting a cooperative effect in the inclusion of ketones in these regions of the Silicalite framework.

A boron difluoride dye showing the aggregation-induced emission feature and high sensitivity to intra- and extra-cellular pH changes

2016 ◽  
Vol 52 (3) ◽  
pp. 541-544 ◽  
Author(s):  
Dan Wu ◽  
Li Shao ◽  
Yang Li ◽  
Qinglian Hu ◽  
Feihe Huang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Fluorescent Probe ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
High Sensitivity ◽  
Emission Feature ◽  
Förster Resonance Energy Transfer ◽  
Aggregation Induced Emission ◽  
Ph Changes ◽  
Boron Difluoride

A novel AIE-active boron difluoride fluorescent probe P3T was designed and synthesized. P3T exhibited high sensitivity to intra- and extra-cellular pH changes. Furthermore, a Förster resonance energy transfer (FRET) system was constructed.

HIGHLY EFFICIENT BLUE ELECTROLUMINESCENCE BASED ON AGGREGATION INDUCED EMISSION MATERIAL AS THE HOST

2013 ◽  
Vol 01 (03) ◽  
pp. 1340012
Author(s):  
XIAO YANG ◽  
SHAOQING ZHUANG ◽  
LEI WANG ◽  
JING HUANG ◽  
ZHEN LI
Keyword(s):  
Energy Transfer ◽  
High Efficiency ◽  
Effective Energy ◽  
Maximum Luminance ◽  
Device Structure ◽  
Light Emitting ◽  
Aggregation Induced Emission ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Effective Energy Transfer

High-efficiency blue organic light-emitting devices (OLEDs) have been fabricated using tetraphenylethene (TPE)-based conjugated molecule TPE-2Cz, which exhibited aggregation induced emission (AIE) properties, as blue host material and BUBD-1 as dopant emitter. With an optimized device structure, the effective energy transfer from the AIE host to BUBD-1 was achieved. The optimized device exhibits the peak EL efficiencies of 10.3 cd/A, 5.4% and 9.8 lm/W, with Commission Internationale de l'Eclairage coordinates of (0.15, 0.31) and a maximum luminance of 14550 cd/m2.

Hydrogen bond-assisted aggregation-induced emission and application in the detection of the Zn(ii) ion

2016 ◽  
Vol 45 (20) ◽  
pp. 8316-8319 ◽  
Author(s):  
Dan Wang ◽  
Shu-Mu Li ◽  
Yu-Fei Li ◽  
Xiang-Jun Zheng ◽  
Lin-Pei Jin
Keyword(s):  
Hydrogen Bond ◽  
Carboxylic Acid ◽  
Hydrogen Bonds ◽  
Cooperative Effect ◽  
Aggregation Induced Emission ◽  
Turn On

3-Aminopyridine-2-carboxylic acid can serve as an AIE-active turn on fluorescence chemosensor for Zn2+. The AIE behaviors are attributed to the cooperative effect of J-aggregation and hydrogen bonds. And selecting proper ratio of the solvents can prove the sensitivity.

scholarly journals Aggregation-induced emission from silole-based lumophores embedded in organic–inorganic hybrid hosts

2021 ◽  
Vol 9 (39) ◽  
pp. 13914-13925
Author(s):  
Guanpeng Lyu ◽  
Thomas J. F. Southern ◽  
Bethan L. Charles ◽  
Maxime Roger ◽  
Philippe Gerbier ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Inorganic Hybrid ◽  
Aggregation Induced Emission ◽  
Enhanced Photoluminescence ◽  
Covalent Grafting ◽  
Physical Mixing

The incorporation of silole-based lumophores into a photoactive organic–inorganic ureasil host via covalent grafting or physical mixing results in enhanced photoluminescence through aggregation and host–guest energy transfer.

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