Visible‐Light‐Excited Room‐Temperature Phosphorescence in Water by Cucurbit[8]uril‐Mediated Supramolecular Assembly

2020 ◽  
Vol 132 (25) ◽  
pp. 10014-10019 ◽  
Author(s):  
Jie Wang ◽  
Zizhao Huang ◽  
Xiang Ma ◽  
He Tian
2021 ◽  
Author(s):  
Wei-Lei Zhou ◽  
Wenjing Lin ◽  
Yong Chen ◽  
Xian-Yin Dai ◽  
Zhixue Liu ◽  
...  

Multivalent supramolecular assembly has recently attracted extensive attention in the application of soft materials and cell imaging. Here we report a novel multivalent supramolecular assembly constructed by 4-(4-bromophenyl)pyridine-1-ium bromide modified...


2019 ◽  
Vol 7 (31) ◽  
pp. 9671-9677 ◽  
Author(s):  
Yanhui Wang ◽  
Zhenzhen Zhang ◽  
Linxi Liu ◽  
Shou Yuan ◽  
Jie Ma ◽  
...  

Five cyanophenylcarbazole isomers have RTP activity under 365 nm UV and 400–460 nm visible light excitation but exhibit different RTP intensities and lifetimes.


2021 ◽  
Vol 13 (12) ◽  
pp. 14407-14416
Author(s):  
Yuchen Deng ◽  
Peng Li ◽  
Jiatong Li ◽  
Daolai Sun ◽  
Huanrong Li

2016 ◽  
Vol 15 (8) ◽  
pp. 959-963 ◽  
Author(s):  
Yohei Ishida ◽  
Tetsuya Shimada ◽  
Elamparuthi Ramasamy ◽  
Vaidhyanathan Ramamurthy ◽  
Shinsuke Takagi

Supramolecular double walls composed of organic capsules and inorganic nanosheets realized stable room-temperature phosphorescence of enclosed guest molecules due to the effective suppression of oxygen quenching.


Author(s):  
Qingyang Xu ◽  
Liangwei Ma ◽  
Siyu Sun ◽  
Xiang Ma

Achieving visible-light-excited room-temperature phosphorescence by changing the sizes of the heterocyclic ring to manipulate p–π conjugation in the molecular structure.


2020 ◽  
Author(s):  
Yunzhong Wang ◽  
Saixing Tang ◽  
Yating Wen ◽  
Shuyuan Zheng ◽  
Bing Yang ◽  
...  

<div>Persistent room-temperature phosphorescence (p-RTP) from pure organics is attractive </div><div>due to its fundamental importance and potential applications in molecular imaging, </div><div>sensing, encryption, anticounterfeiting, etc.1-4 Recently, efforts have been also made in </div><div>obtaining color-tunable p-RTP in aromatic phosphors5 and nonconjugated polymers6,7. </div><div>The origin of color-tunable p-RTP and the rational design of such luminogens, </div><div>particularly those with explicit structure and molecular packing, remain challenging. </div><div>Noteworthily, nonconventional luminophores without significant conjugations generally </div><div>possess excitation-dependent photoluminescence (PL) because of the coexistence of </div><div>diverse clustered chromophores6,8, which strongly implicates the possibility to achieve </div><div>color-tunable p-RTP from their molecular crystals assisted by effective intermolecular </div><div>interactions. Here, inspirited by the highly stable double-helix structure and multiple </div><div>hydrogen bonds in DNA, we reported a series of nonconventional luminophores based on </div><div>hydantoin (HA), which demonstrate excitation-dependent PL and color-tunable p-RTP </div><div>from sky-blue to yellowish-green, accompanying unprecedentedly high PL and p-RTP </div><div>efficiencies of up to 87.5% and 21.8%, respectively. Meanwhile, the p-RTP emissions are </div><div>resistant to vigorous mechanical grinding, with lifetimes of up to 1.74 s. Such robust, </div><div>color-tunable and highly efficient p-RTP render the luminophores promising for varying </div><div>applications. These findings provide mechanism insights into the origin of color-tunable </div><div>p-RTP, and surely advance the exploitation of efficient nonconventional luminophores.</div>


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