scholarly journals Controlling ultralong room temperature phosphorescence in organic compounds with sulfur oxidation state

2021 ◽  
Vol 12 (1) ◽  
pp. 188-195
Author(s):  
Zhen Xu ◽  
Clàudia Climent ◽  
Christopher M. Brown ◽  
Duane Hean ◽  
Christopher J. Bardeen ◽  
...  
Keyword(s):  
Organic Compounds ◽  
Oxidation State ◽  
Room Temperature ◽  
Sulfur Oxidation ◽  
Intersystem Crossing ◽  
Room Temperature Phosphorescence ◽  
Lone Pairs ◽  
Orbital Mixing

Sulfur lone pairs in bridged dimers enhance intersystem crossing and phosphorescence through orbital mixing and electrostatic screening.

Activating Intersystem Crossing and Aggregation Coupling by CN-Substitution for Efficient Organic Ultralong Room Temperature Phosphorescence

2020 ◽  
Vol 124 (18) ◽  
pp. 10129-10134
Author(s):  
Jie Yuan ◽  
Yongrong Wang ◽  
Ling Li ◽  
Shuang Wang ◽  
Xingxing Tang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Intersystem Crossing ◽  
Room Temperature Phosphorescence

scholarly journals The development of mechanoluminescence from organic compounds: breakthrough and deep insight

2020 ◽  
Vol 4 (2) ◽  
pp. 317-331 ◽  
Author(s):  
Yujun Xie ◽  
Zhen Li
Keyword(s):  
Organic Compounds ◽  
Room Temperature ◽  
Crack Surface ◽  
Deep Insight ◽  
Room Temperature Phosphorescence

The organic mechanoluminescence (ML) happens at the crack surface under force, and the ML composition is becoming more complicated, extending from the normal fluorescence to phosphorescence, persistent room temperature phosphorescence and the photo-sensitive ML.

Invoking ultralong room temperature phosphorescence of purely organic compounds through H-aggregation engineering

2019 ◽  
Vol 6 (6) ◽  
pp. 1259-1264 ◽  
Author(s):  
Jie Yuan ◽  
Shuang Wang ◽  
Yu Ji ◽  
Runfeng Chen ◽  
Qi Zhu ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Organic Compounds ◽  
Room Temperature ◽  
Reversed Phase ◽  
Room Temperature Phosphorescence ◽  
Dark State ◽  
Thermally Activated ◽  
Splitting Energy ◽  
Allowed State

Splitting energy (Δε)-controlled thermally activated reversed phase transformation from the low-lying dark state to the high-lying transition-allowed state of H-aggregation plays a key role in the organic ultralong room-temperature phosphorescence.

scholarly journals Ultralong room-temperature phosphorescence of a solid-state supramolecule between phenylmethylpyridinium and cucurbit[6]uril

2019 ◽  
Vol 10 (33) ◽  
pp. 7773-7778 ◽  
Author(s):  
Zhi-Yuan Zhang ◽  
Yu Liu
Keyword(s):  
Solid State ◽  
Room Temperature ◽  
Data Encryption ◽  
Intersystem Crossing ◽  
Nonradiative Relaxation ◽  
Room Temperature Phosphorescence

We report an ultralong room-temperature phosphorescence (2.62 s) based on cucurbit[6]uril host and phenyl-methyl-pyridinium guest for data encryption. Encapsulation of CB[6] boosts intersystem crossing and suppresses nonradiative relaxation of guest.

scholarly journals Using sulfur bridge oxidation to control electronic coupling and photochemistry in covalent anthracene dimers

2019 ◽  
Vol 10 (32) ◽  
pp. 7561-7573 ◽  
Author(s):  
Chad D. Cruz ◽  
Jennifer Yuan ◽  
Clàudia Climent ◽  
Nathan T. Tierce ◽  
Peter R. Christensen ◽  
...  
Keyword(s):  
Excited State ◽  
Oxidation State ◽  
Sulfur Atom ◽  
Sulfur Oxidation ◽  
Electronic Coupling ◽  
Intersystem Crossing ◽  
State Behavior

For anthracene dimers bridged by a sulfur atom, modulating the sulfur oxidation state profoundly affects excited state behavior. The SO2-bridge supports long-lived states and photodimerization, while the S-bridge undergoes intersystem crossing.

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