ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2023
One-Step Synthesis of White-Light-Emitting Carbon Dots for White LEDs with a High Color Rendering Index of 97.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Luminescent heparin-functionalized carbon dots with potential applications in nanoparticle-protein interactions and cell imaging.Scientific reports · 2026Article
- Tuning White-Light Emission of POSS-Based Fluorescent Hybrid Porous Polymers via Physical Blending for White LEDs.Polymers · 2025Article
- Large Scale Synthesis of Carbon Dots and Their Applications: A Review.Molecules (Basel, Switzerland) · 2025Review
- Carbon Dots and Their Films with Narrow Full Width at Half Maximum Orange Emission.Molecules (Basel, Switzerland) · 2024Article
- Solvent-Controlled Strategy for Color-Tunable Fluorescence Carbon Dots and Their Application in Light-Emitting Diodes.Molecules (Basel, Switzerland) · 2024Article
- Optimizations of luminescent materials for white light emitting diodes toward healthy lighting.Heliyon · 2024Review
- One-Step Synthesis of White-Light-Emitting Carbon Dots for White LEDs with a High Color Rendering Index of 97.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
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Authors and funding
10 authors.
Funding
Abstract
White-light-emitting carbon dots (WCDs) show innate advantages as phosphors in white light-emitting diodes (WLEDs). For WLEDs, the color rendering index (CRI) is the most important metric to evaluate its performance. Herein, WCDs are prepared by a facile one-step solvothermal reaction of trimellitic acid and o-phenylenediamine. It consists of four CDs identified by column chromatography as blue, green, yellow, red, and thus white light is a superposition of these four types of light. The mixture of the four CDs undergoes Förster resonance energy transfer to induce the generation of white light. The photoluminescence of WCDs originates from the synergistic effect of carbon core and surface states. Thereinto, the carbon core states dominate in RCDs, and the increase of amide contents and degree of conjugation promote the redshift of the emission spectra, which is further confirmed by theoretical calculations. In addition, a high CRI of 97 is achieved when the WCDs are used as phosphors to fabricate WLEDs, which is almost the highest value up to now. The multicolor LEDs can also be fabricated by using the four multicolor CDs as phosphors, respectively. This work provides a novel approach to explore the rapid preparation of low-cost, high-performance WCDs and CDs-based WLEDs.
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