High pH-induced efficient room-temperature phosphorescence from carbon dots in hydrogen-bonded matrices

A series of room-temperature composites were synthesized by embedding polyaniline carbon dots in hydrogen-bonded polymer matrices. Adjustable RTP lifetime are realized, enabling time-resolved anti-counterfeit and data encryption patterns.

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Induction of long-lived room temperature phosphorescence of carbon dots by water in hydrogen-bonded matrices

Nature Communications ◽

10.1038/s41467-018-03144-9 ◽

2018 ◽

Vol 9 (1) ◽

Cited By ~ 103

Author(s):

Qijun Li ◽

Ming Zhou ◽

Mingyang Yang ◽

Qingfeng Yang ◽

Zhixun Zhang ◽

...

Keyword(s):

Carbon Dots ◽

Room Temperature ◽

Room Temperature Phosphorescence ◽

Hydrogen Bonded

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Self-assembly induced luminescence of Eu3+-complexes and application in bioimaging

National Science Review ◽

10.1093/nsr/nwab016 ◽

2021 ◽

Author(s):

Ping-Ru Su ◽

Tao Wang ◽

Pan-Pan Zhou ◽

Xiao-Xi Yang ◽

Xiao-Xia Feng ◽

...

Keyword(s):

Aqueous Solution ◽

Rare Earth ◽

Luminescence Intensity ◽

Self Assembly ◽

Room Temperature ◽

Molecular Motion ◽

Proof Of Concept ◽

Room Temperature Phosphorescence ◽

New Strategy ◽

Size Controlled

Abstract Design and engineering of highly efficient emitting materials with assembly-induced luminescence, such as room temperature phosphorescence (RTP) and aggregation-induced emission (AIE), have stimulated extensive efforts. Here, we propose a new strategy to obtain size-controlled Eu3+-complex nanoparticles (Eu-NPs) with self-assembly induced luminescence (SAIL) characteristics without encapsulation or hybridization. Compared with previous RTP or AIE materials, the SAIL phenomena of increased luminescence intensity and lifetime in aqueous solution for the proposed Eu-NPs are due to the combined effect of self-assembly in confining the molecular motion and shielding the water quenching. As a proof of concept, we also show that this system can be further applied in bioimaging, temperature measurement and HClO sensing. The SAIL activity of the rare-earth (RE) system proposed here offers a further step forward on the roadmap for the development of RE light conversion systems and their integration in bioimaging and therapy applications.

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Achieving Long Lifetime of Pure Organic Room-temperature Phosphorescence via Constructing Hydrogen-bonded Organic Frameworks

Journal of Luminescence ◽

10.1016/j.jlumin.2021.118120 ◽

2021 ◽

pp. 118120

Author(s):

Shenghui Han ◽

Gang Lian ◽

Xu Zhang ◽

Zhaozhen Cao ◽

Qilong Wang ◽

...

Keyword(s):

Room Temperature ◽

Room Temperature Phosphorescence ◽

Long Lifetime ◽

Hydrogen Bonded

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A Facile Co-crystallization Approach to Fabricate Two-component Carbon Dots Composites Showing Time-Dependent Evolutive Room Temperature Phosphorescence Colors

Nanoscale Advances ◽

10.1039/d1na00362c ◽

2021 ◽

Author(s):

Jian Qu ◽

Xin Zhang ◽

Zhong-Jie Wang ◽

Shuyan Zhang ◽

Yejian Yu ◽

...

Keyword(s):

Carbon Dots ◽

Room Temperature ◽

Data Encryption ◽

Time Dependent ◽

Security Level ◽

Room Temperature Phosphorescence ◽

Two Component ◽

Carbon Based

Time-dependent evolutive afterglow materials can increase the security level by providing additional encryption modes in anti-counterfeiting and data encryption. The design of carbon-based materials with dynamic afterglow colors is attractive...

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