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Bright Multicolor Bandgap Fluorescent Carbon Quantum Dots for Electroluminescent Light-Emitting Diodes
Louzhen Fan
- Iss: 12, pp 826-826
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TLDR
For the first time, monochrome electroluminescent light-emitting diodes (LEDs) with MCBF-CQDs directly as an active emission layer are fabricated and the maximum luminance of blue LEDs reaches 136 cd m-2, which is the best performance for CQD-based monochrominescent LEDs.Abstract:
Multicolor bandgap fluorescent carbon quantum dots (MCBF-CQDs) from blue to red with quantum yield up to 75% are synthesized using a solvothermal method. For the first time, monochrome electroluminescent light-emitting diodes (LEDs) with MCBF-CQDs directly as an active emission layer are fabricated. The maximum luminance of blue LEDs reaches 136 cd m-2 , which is the best performance for CQD-based monochrome electroluminescent LEDs.read more
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References
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Carbon Dots for Photocatalytic Degradation of Aqueous Pollutants: Recent Advancements
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Effect of Solvent-Derived Highly Luminescent Multicolor Carbon Dots for White-Light-Emitting Diodes and Water Detection.
Rinki Kumari,Sumanta Kumar Sahu +1 more
TL;DR: The detailed characterization revealed that the solvent controls the particle size, bandgap, and nitrogen doping concentration, and it has observed that the R-CDs provide a full range of visible color by dispersing in different immiscible solvents.
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Preparation of Multicolor Photoluminescent Carbon Dots by Tuning Surface States.
TL;DR: Morphology and structure analyses revealed that the increased surface oxidation and carboxylation were responsible for the red-shifts of emission, indicating that TA played a key role in tuning the surface state of CDs.
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Carbon dot-based white and yellow electroluminescent light emitting diodes with a record-breaking brightness.
TL;DR: In this work, host-guest doping was adopted to effectively improve the brightness of CD-LEDs and the yellow emission of the doped devices is mainly derived from the direct carrier trapping on CDs.
Journal ArticleDOI
Highly efficient and ultra-narrow bandwidth orange emissive carbon dots for microcavity lasers
TL;DR: This work has provided a didactic example to develop high-quality long emission-wavelength carbon dots with strong emission and an ultra-narrow emission bandwidth, which makes it possible to expand the application of original and high-performance lasers or other optical devices.