The influence of the molecular packing on the room temperature phosphorescence of purely organic luminogens.
Jie Yang,Xu Zhen,Bin Wang,Xuming Gao,Zichun Ren,Jiaqiang Wang,Yujun Xie,Jian-Rong Li,Qian Peng,Kanyi Pu,Zhen Li +10 more
TLDR
It is found that strong π–π interactions in solid state can promote the persistent RTP and CS-CF3 shows the unique photo-induced phosphorescence in response to the changes in molecular packing, further confirming the key influence of the molecular packing on the RTP property.Abstract:
Organic luminogens with persistent room temperature phosphorescence (RTP) have attracted great attention for their wide applications in optoelectronic devices and bioimaging. However, these materials are still very scarce, partially due to the unclear mechanism and lack of designing guidelines. Herein we develop seven 10-phenyl-10H-phenothiazine-5,5-dioxide-based derivatives, reveal their different RTP properties and underlying mechanism, and exploit their potential imaging applications. Coupled with the preliminary theoretical calculations, it is found that strong π-π interactions in solid state can promote the persistent RTP. Particularly, CS-CF3 shows the unique photo-induced phosphorescence in response to the changes in molecular packing, further confirming the key influence of the molecular packing on the RTP property. Furthermore, CS-F with its long RTP lifetime could be utilized for real-time excitation-free phosphorescent imaging in living mice. Thus, our study paves the way for the development of persistent RTP materials, in both the practical applications and the inherent mechanism.read more
Citations
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Journal ArticleDOI
Room-temperature phosphorescence from organic aggregates
TL;DR: In this article, the authors analyzed key photophysical processes related to triplet excitons, including intersystem crossing, radiative and non-radiative decay, and quenching processes.
Journal ArticleDOI
Aggregation-induced emission: fundamental understanding and future developments
Yuncong Chen,Yuncong Chen,Jacky Wing Yip Lam,Ryan T. K. Kwok,Bin Liu,Ben Zhong Tang,Ben Zhong Tang +6 more
TL;DR: In-depth discussion on recent progress of fundamental understanding of AIE mechanisms, identifying the existing challenges and opportunities for future developments.
Journal ArticleDOI
Molecular Packing: Another Key Point for the Performance of Organic and Polymeric Optoelectronic Materials.
Qianqian Li,Zhen Li,Zhen Li +2 more
TL;DR: This Account gives a summary of the research on the molecular design of optoelectronic materials, with the consideration of a molecular uniting effect in different aggregated states, such as crystalline states, thin films, and nanoparticles.
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Enhancing the performance of pure organic room-temperature phosphorescent luminophores
Kenry,Chengjian Chen,Bin Liu +2 more
TL;DR: This Review discusses the fundamental mechanism of RTP in pure organic Luminophores, followed by design principles, enhancement strategies, and formulation methods to achieve highly phosphorescent and long-lived organic RTP luminophores even in aqueous media.
Journal ArticleDOI
Assembling-Induced Emission: An Efficient Approach for Amorphous Metal-Free Organic Emitting Materials with Room-Temperature Phosphorescence
TL;DR: A new concept as "Assembling-Induced Emission", the key thought of which systems is "control molecular motions, then control emission" via supramolecular dynamic assembling, is proposed, applicable in many emissive assembling systems besides such amorphous RTP materials introduced.
References
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Journal ArticleDOI
Aggregation-Induced Emission: Together We Shine, United We Soar!
TL;DR: This paper presents a meta-analysis of the chiral stationary phase transition of Na6(CO3)(SO4)2, a major component of the response of the immune system to Na2CO3.
Journal ArticleDOI
The nature of .pi.-.pi. interactions
Journal ArticleDOI
A critical account on π–π stacking in metal complexes with aromatic nitrogen-containing ligands
TL;DR: In this paper, a geometrical analysis of π-π stacking in metal complexes with aromatic nitrogen-containing ligands was performed based on a Cambridge Structural Database search and on X-ray data of examples.
Journal ArticleDOI
A New Long Phosphorescent Phosphor with High Brightness, SrAl2 O 4 : Eu2 + , Dy3 +
TL;DR: A green emitting phosphor with very bright and long lasting phosphorescence has been newly developed in this article, where the incorporation of ion into the system as an auxiliary activator dominates the phosphorescence, thermoluminescence and photoconductivity characteristics of the phosphor to a large extent.
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Thermally Activated Delayed Fluorescence Materials Towards the Breakthrough of Organoelectronics
Ye Tao,Kai Yuan,Ting Chen,Peng Xu,Huanhuan Li,Runfeng Chen,Chao Zheng,Lei Zhang,Wei Huang,Wei Huang +9 more
TL;DR: An overview of the quick development in TADF mechanisms, materials, and applications is presented, with a particular emphasis on their different types of metal-organic complexes, D-A molecules, and fullerenes.