Application of room-temperature phosphorescent carbon dots in information encryption and anti-counterfeiting

Nano Today, Journal Year: 2024, Volume and Issue: 55, P. 102200 - 102200

Published: Feb. 13, 2024

Language: Английский

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Achieving Bright and Long‐Lived Aqueous Room‐Temperature Phosphorescence of Carbon Nitrogen Dots Through In Situ Host–Guest Binding

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(24)

Published: Feb. 29, 2024

Abstract The development of bright and long‐lived aqueous room‐temperature phosphorescent (RTP) materials holds paramount importance in broadening the application scope RTP material system. However, conventional usually exhibit low efficiency short lifetime solution. Herein, an situ host–guest strategy is proposed to achieve cyanuric acid (CA)‐derived carbon nitrogen dots (CNDs) composite (CNDs@CA) that demonstrates a significant enhancement both quantum yield (QY) mediated by water. Detailed investigations reveal robust hydrogen bonding networks between CNDs@CA water effectively stabilize triplet excitons suppress nonradiative decays, as well facilitate efficient energy transfer from CA CNDs, thereby prolonging enhancing RTP. QY can be increased 26.89% (3.9‐fold increase) 951.25 ms (5.5‐fold increase), respectively, with incorporation 50 wt% under ambient conditions. Even fully environments (with up 400 added), exhibits persistent water‐boosted properties, demonstrating exceptional stability. property solutions presents potential for high signal‐to‐noise ratio afterglow bioimaging advanced information encryption.

Language: Английский

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Carbon Dots: A Bright Future as Anticounterfeiting Encoding Agents

Small, Journal Year: 2024, Volume and Issue: 20(28)

Published: Feb. 23, 2024

Abstract Counterfeit products and data vulnerability present significant challenges in contemporary society. Hence, various methods technologies are explored for anticounterfeiting encoding, with luminescent tracers, particularly carbon dots (CDs), emerging as a notable solution. CDs offer promising contributions to product security, environmental sustainability, the circular economy. This critical review aims highlight luminescence responsiveness of physical chemical stimuli, achieved through nanoengineering their structure. The discussion will delve into tunable mechanisms decay times CDs, investigating preferential excitations such up‐conversion, delayed fluorescence, room temperature phosphorescence, persistent luminescence, energy charge transfer, well photo‐chemical interactions. These insights crucial advancing solutions. Following this exploration, systematic focus on research CDs' smart encoding applications, encompassing anticounterfeiting, tracing, quality certification, information encryption. Finally, address key implementing CDs‐based technology, providing specific strategies aimed at maximizing stability efficacy applications.

Language: Английский

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Comprehensive Overview of Controlled Fabrication of Multifunctional Fluorescent Carbon Quantum Dots and Exploring Applications

Small, Journal Year: 2024, Volume and Issue: 20(29)

Published: Feb. 11, 2024

Abstract In recent years, carbon dots (CDs) have garnered increasing attention due to their simple preparation methods, versatile performances, and wide‐ranging applications. CDs can manifest various optical, physical, chemical properties including quantum yield (QY), emission wavelength (Em), solid‐state fluorescence (SSF), room‐temperature phosphorescence (RTP), material‐specific responsivity, pH sensitivity, anti‐oxidation oxidation, biocompatibility. These be effectively regulated through precise control of the CD process, rendering them suitable for diverse However, lack consideration given each feature during process poses a challenge in obtaining requisite features This paper is analyze existing research present novel concepts ideas creating with different distinct The synthesis methods are discussed first section, followed by comprehensive overview important modification strategy. Subsequently, application reviewed. Finally, outlines current challenges controlling applications, discusses potential solutions, offers suggestions future research.

Language: Английский

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Full-color room-temperature phosphorescent carbon dots with ultrahigh quantum yield via conjugation regulation

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159246 - 159246

Published: Jan. 1, 2025

Language: Английский

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The luminescence mechanism of two pure organic room temperature phosphorescent isomers, mechanical force detection, 3D modeling, and dynamic data encryption

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159245 - 159245

Published: Jan. 5, 2025

Language: Английский

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Carbon quantum dots derived from polysaccharides: Chemistry and potential applications

Carbohydrate Polymers, Journal Year: 2023, Volume and Issue: 324, P. 121503 - 121503

Published: Oct. 18, 2023

Language: Английский

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Visible-light-excited high efficiency multicolor room temperature phosphorescence of carbon dots in boric acid matrix

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 480, P. 148157 - 148157

Published: Dec. 18, 2023

Language: Английский

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Metal-Free organic polymeric room temperature phosphorescence system with Multi-Colour and ultralong lifetime

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 481, P. 148642 - 148642

Published: Jan. 8, 2024

Language: Английский

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Regulation of the unconventional luminescence behaviors of phenylenediamine-based carbon dots with high PLQY values

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 506, P. 160342 - 160342

Published: Jan. 1, 2025

Language: Английский

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