Visualizing Material Processing via Photoexcitation-Controlled Organic-Phase Aggregation-Induced Emission

Gu, Jian; Yue, Bingbing; Baryshnikov, Glib; Li, Zhongyu; Zhang, Man; Shen, Shen; Ågren, Hans; Zhu, Liangliang

doi:10.34133/2021/9862093

Cited by 20 publications

(29 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This system can also exhibit a perfect self-recoverable AIE, opening new opportunities for preparation and processing of the materials. Compared with traditional AIE means, these results encourage us to further develop strategies for photoexcitation-controlled AIE − which can realize a precise remote-controlled ability in a single medium. However, it is still a challenge to apply photoexcitation-controlled AIEgens in the organic phase, because of the undesired side-reactions like photooxidation that is easily exacerbated. − It would thus be desirable to develop strategies to obtain control over this problem in the organic phase, so as to enhance the general operability of photoexcitation-controlled AIEgens within a larger scope.…”

mentioning

confidence: 99%

Enhancing the Operability of Photoexcitation-Controlled Aggregation-Induced Emissive Molecules in the Organic Phase

Weng

Zou

Zhang

et al. 2021

J. Phys. Chem. Lett.

Self Cite

View full text Add to dashboard Cite

Controllable aggregation-induced emission luminogens (AIEgens) by photoexcitation can be conducted within a single solvent, thus opening new opportunities for preparing and processing smart materials. However, undesired side-reactions like photooxidation that can easily occur in the organic phase remain, limiting their applications. To enhance the operability of photoexcitation-controlled AIEgens (to specifically produce a phosphorescence characteristic) in the organic phase, in this work, we employ a typical prototype, hexathiobenzene, usually as the specific phosphorescent group, and investigate a series of physical and chemical factors, such as light intensity, dissolved oxygen content, and solvent polarity, to explore ways to control the photoexcitation-controllable AIEgens against the impurities from side-reactions. An organogel strategy was also developed to minimize interference factors and improve the practical application ability. We believe that the presented results provide new insights into the further development of the photoexcitationbased functional materials and the promotion of their practical usage.

show abstract

mentioning

confidence: 99%

Enhancing the Operability of Photoexcitation-Controlled Aggregation-Induced Emissive Molecules in the Organic Phase

Weng

Zou

Zhang

et al. 2021

J. Phys. Chem. Lett.

Self Cite

View full text Add to dashboard Cite

show abstract

“…51 As mentioned in our previous study, the hexathiobenzene skeleton can undergo an intense conformational change by photoexcitation, which dynamically changes its solubility through π−π interaction and the subsequent molecular aggregation, thereby producing AIP. 43,52,53 In a polymer-free aqueous solution, the aggregation of HTBCOONa is easily self-recoverable after de-excitation (see a cartoon illustration in Figure 1B). In contrast, a turbid solution is formed when PDDA is added (Figure 3A).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Rigid Polymer Network-Based Autonomous Photoswitches Working in the Solid State Encoded by Room-Temperature Phosphorescence

et al. 2021

Self Cite

View full text Add to dashboard Cite

Autonomous molecular switches with self-recoverability are of great theoretical and experimental interest since they can avoid additional chemical or energy imposition during the working process. Due to the high energy barrier, however, the solid state is generally unfavorable for materials to exhibit the autonomous switch behavior. To promote the practical usage of the autonomous molecular switch, herein, we propose a prototype of an autonomous photoswitch that can work in the solid state based on a rigid polymer network. A hexacarboxylic sodium-modified hexathiobenzene compound was employed as a photoexcitation-driven unit, which can undergo molecular aggregation upon irradiation because of the distinct conformational difference between the ground state and the photoexcited state. Then, we selected a relatively rigid polymer named poly(dimethyldiallylammonium)chloride (PDDA) to complex with the hexacarboxylic sodium-modified hexathiobenzene through electrostatic coupling. Through optimization, the photoexcitation-controlled molecular aggregation and its self-recovery can work well in the solid matrix of PDDA under rhythmical photoirradiation. This process can be easily encoded by a self-recoverable room-temperature phosphorescence, featuring an excellent performance of the autonomous switch.

show abstract

“…而聚集又抑制了非辐射跃迁, 进一步加强了磷光发射. 因为 M-1 分子具有自聚集和荧光增强特性 [25][26][27] , 使得其有希望成为新一代聚集诱导磷光(AIP)分子, 并具有构筑新型光控开关的潜力.…”

Section: 引言unclassified

Circularly Polarized Luminescence and Dynamic Regulation Based on the co-Assembly of L/D-Lysine Hydrochloride and Photoactivated AIE Molecules

Feng¹,

Zhu²,

Yue³

2022

Acta Chimica Sinica

Self Cite

View full text Add to dashboard Cite

In recent years, chiral materials based on circularly polarized luminescence (CPL) generated by molecular assembly have developed rapidly. However, the overall CPL signal of organic material systems is still weak and lacks precise modulation means. As a non-contact external stimulus, light stimulation has the advantages of precision and speed. Therefore, in this work, hexathiobenzene (M-1) with photoactive aggregation-induced emission (AIE) properties were used as fluorescent dyes, and chiral amino acids L/D-Lysine hydrochloride (L/D-Lys) were used as chiral templates.

show abstract

Visualizing Material Processing via Photoexcitation-Controlled Organic-Phase Aggregation-Induced Emission

Cited by 20 publications

References 64 publications

Enhancing the Operability of Photoexcitation-Controlled Aggregation-Induced Emissive Molecules in the Organic Phase

Enhancing the Operability of Photoexcitation-Controlled Aggregation-Induced Emissive Molecules in the Organic Phase

Rigid Polymer Network-Based Autonomous Photoswitches Working in the Solid State Encoded by Room-Temperature Phosphorescence

Circularly Polarized Luminescence and Dynamic Regulation Based on the co-Assembly of L/D-Lysine Hydrochloride and Photoactivated AIE Molecules

Contact Info

Product

Resources

About