Multicolor Afterglow Carbon Dots: Luminescence Regulation, Preparation, and Application

Advanced Functional Materials, Год журнала: 2024, Номер 34(25)

Опубликована: Фев. 6, 2024

Abstract Afterglow materials have attracted much attention owing to their long luminescence lifetimes, large Stokes shifts, and emission without real‐time excitation. Compared with traditional organic afterglow materials, carbon dots (CDs), as a new material, superior properties such easy preparation, low toxicity, cost. The color of CDs can be regulated by external factors excitation wavelength, temperature, time, which is highly significant for expanding the diversified applications make them available biotechnology information applications. This review summarizes research progress multicolor in recent years, including regulation strategies, preparation methods, First, are classified into three strategies: room temperature phosphorescence (RTP), thermally activated delayed fluorescence converted RTP, based on Förster resonance energy transfer, strategies regulating analyzed. Second, methods achieving summarized both matrix‐free matrix‐confined aspects. Then, anticounterfeiting encryption, sensing bioimaging introduced detail. Finally, future challenges opportunities prospected provide ideas controlled design wide application.

Язык: Английский

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

Nano Today, Год журнала: 2024, Номер 55, С. 102200 - 102200

Опубликована: Фев. 13, 2024

Язык: Английский

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Carbon dot-based afterglow composite with tunable room temperature phosphorescence and thermally activated delayed fluorescence and their anti-counterfeiting and encryption application

Chemical Engineering Journal, Год журнала: 2024, Номер 489, С. 151245 - 151245

Опубликована: Апрель 15, 2024

Язык: Английский

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Endowing Carbon Dots with Long‐Lived Phosphorescence Emission in Aqueous Solutions

Advanced Functional Materials, Год журнала: 2023, Номер 34(7)

Опубликована: Ноя. 3, 2023

Abstract Room temperature phosphorescent carbon dots (RTP CDs) have received increasing attention in recent years due to their outstanding optical properties and potential applications. It is worth noting that RTP CDs aqueous solution inspired special interests because of low toxicity, long lifetime, ability avoid autofluorescence background fluorescence, exhibiting wide application prospects time‐resolved biological imaging sensing. However, achieving solutions remains a considerable challenge water molecules oxygen can cause the deactivation triplet‐state excitons, resulting phosphorescence quenching. Several strategies been proposed counter problem including encapsulated rigid matrix, hydrogen bonding, covalent bonding fixation. Consequently, more significant number materials with excellent stability, multicolor are successfully obtained. Herein, development as well corresponding fabricated luminescence mechanism detailly summarized reviewed. Furthermore, various applications water‐phase information security, sensing, bioimaging, light‐emitting diodes, fingerprinting also discussed. Finally, an outlook on proposed.

Язык: Английский

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Cascade energy transfer endows phosphorescent carbon dots-based films with tunable and broadband afterglow for fingerprint recognition and anticounterfeiting

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160311 - 160311

Опубликована: Фев. 1, 2025

Язык: Английский

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The afterglow of carbon dots shining in inorganic matrices

Materials Horizons, Год журнала: 2023, Номер 11(1), С. 113 - 133

Опубликована: Окт. 5, 2023

This is a comprehensive and systematic review focusing on CDs@IMs from multiple perspectives of construction, performance, mechanism, multifunctional applications.

Язык: Английский

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Aggregated carbon dots endow them with room-temperature phosphorescence in aqueous environments: Mechanisms, properties, and applications

Chemical Engineering Journal, Год журнала: 2024, Номер 495, С. 153653 - 153653

Опубликована: Июль 1, 2024

Язык: Английский

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Recent advances in fluorescence and afterglow of CDs in matrices

Nanoscale Horizons, Год журнала: 2024, Номер 9(7), С. 1072 - 1098

Опубликована: Янв. 1, 2024

Carbon dots (CDs) are novel nanomaterials with dimensions less than 10 nm that have attracted much attention due to their outstanding optical properties.

Язык: Английский

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Review of Phosphorescent Carbon Dots and Their Applications

ACS Applied Nano Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 14, 2025

Язык: Английский

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Machine Learning-Guided Synthesis of Room-Temperature Phosphorescent Carbon Dots for Enhanced Phosphorescence Lifetime and Information Encryption

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(5), С. 5465 - 5475

Опубликована: Фев. 28, 2024

Room-temperature phosphorescent (RTP) carbon dots (CDs) have been increasingly used in many applications, including anticounterfeiting and information encryption. However, synthesizing RTP CDs with a specific average lifetime of phosphorescence remains formidable challenge. A breakthrough is needed formulating the synthesis process to find suitable formulation produce an optimal phosphorescence. Machine learning (ML) has recently successfully for guiding material offering insight into prediction, optimization, acceleration CDs' process. regression ML model on microwave-assisted CD established reveal relationship between various parameters enhance solid-state phase. exhibit blue emission when irradiating UV green afterglow after turned off. These emissions can last 7 s, are easily observed by naked eye, show ultralong up 1.6 s. Moreover, designed guided ML, this feature was explored achieve multilevel encryption encrypt decrypt secret dynamic time-dependent displays. Our results provide strategy extending their application scope high-level security.

Язык: Английский

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