ArticleScience advances2023
Aggregation-induced emission of matrix-free graphene quantum dots via selective edge functionalization of rotor molecules.
Article in Science advances, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Ratiometric Mycotoxin Detection in Living Plants With Dual-Emissive Nanosensors.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- A comprehensive review on the capability of graphene quantum dots-based/involved platforms for the detection of inorganic ions.RSC advances · 2025Review
- Stimuli-responsive smart materials enabled high-performance biosensors for liquid biopsies.Journal of nanobiotechnology · 2025Review
- Precision Nanoconfined Self-Assembly of ACQ Carbon Dots for Enhanced Solid-State Fluorescence.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Advancing solar energy applications with graphene: the potential of minimally oxidized graphene.Nano convergence · 2025Review
- Recyclable soft photonic crystal film with overall improved circularly polarized luminescence.Nature communications · 2023Article
- Photothermal therapy using graphene quantum dots.APL bioengineering · 2023Review
- Advances in Structural Modifications and Properties of Graphene Quantum Dots for Biomedical Applications.ACS omega · 2023Review
- Graphene derivative based hydrogels in biomedical applications.Journal of tissue engineeringReview
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Graphene quantum dots (GQDs) are nanosized graphene derivatives with unique photoluminescence (PL) properties that have advantages in optoelectronic applications due to their stable blue light emission. However, aggregation-caused quenching (ACQ) of GQDs limits the practical applications on light-emitting diodes. Here, we suppress the ACQ phenomena of GQDs by reducing the size and converting GQDs into aggregation-induced emission (AIE)-active materials. As the size of GQDs is reduced from 5 to 1 nm, their solid-state PL quantum yields (PLQYs) are improved from 0.5 to 2.5%, preventing ACQ. Two different rotor molecules, benzylamine (BA) and 4,4'-(1,2-diphenylethene-1,2-diyl)diphenol (TPE-DOH), are selectively functionalized by substituting carboxylic acid and carbonyl functional groups. All functionalized GQDs show AIE behaviors with significantly enhanced solid-state PLQYs, up to 16.8%. Afterglow measurements and theoretical calculations reveal that selective functionalization hinders inter- and intramolecular charge transfer, which enhances the fluorescence rate of GQDs and corresponding PLQY.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.