Journal ArticleDOI
53% Efficient Red Emissive Carbon Quantum Dots for High Color Rendering and Stable Warm White-Light-Emitting Diodes
Reads0
Chats0
TLDR
An ultraviolet (UV)-pumped CQD phosphors-based warm white light-emitting diode (WLED) is realized for the first time and achieves a color rendering index of 97.Abstract:
Red emissive carbon quantum dots (R-CQDs) with quantum yield of 53% is successfully prepared. An ultraviolet (UV)-pumped CQD phosphors-based warm white light-emitting diode (WLED) is realized for the first time and achieves a color rendering index of 97. This work provides a new avenue for the exploration of low cost, environment-friendly, and high-performance CQD phosphors-based warm WLEDs.read more
Citations
More filters
Journal ArticleDOI
Sunlike White-Light-Emitting Diodes Based on Zero-Dimensional Organic Metal Halide Hybrids.
TL;DR: These WLEDs exhibiting white emissions with correlated color temperatures (CCTs) ranging from 3000 to 6000 K perfectly mimic sunlight at different times of day.
Journal ArticleDOI
Ethanol-derived white emissive carbon dots: the formation process investigation and multi-color/white LEDs preparation
TL;DR: In this paper, the authors used ethanol as a carbon source to synthesize white-emitting CDs (W-CDs), which are composed of blue-, cyan-, and yellow emitting CDs that fluoresce at wavelengths corresponding to the three emission centers of WCDs.
Journal ArticleDOI
Fluorescent carbon dots in solid-state: From nanostructures to functional devices
TL;DR: In this article, a review of the main strategies for maintaining and empowering the optical properties of CDs from liquid to solid-state is presented, which includes the preparation of self-quenching resistant fluorescent CDs and the embedding into different matrices.
Journal ArticleDOI
Recent studies on cellulose-based fluorescent smart materials and their applications: A comprehensive review.
TL;DR: The progress of bio-based fluorescent smart materials and their multifunctional applications have attained increasing interest in the recent decades as discussed by the authors, and a review summarizes the chemical modification of cellulose into smart fluorescent materials.
Journal ArticleDOI
Gram-Scale Synthesis of Highly Efficient Rare-Earth-Element-Free Red/Green/Blue Solid-State Bandgap Fluorescent Carbon Quantum Rings for White Light-Emitting Diodes
TL;DR: The results show the role of cyano groups in the curvature of carbon quantum ribbons for CQR formation and emission of stable solid-state bandgap fluorescence and facilitates the development of high-performance low-cost REE-free phosphors.
References
More filters
Journal ArticleDOI
Quantum-sized carbon dots for bright and colorful photoluminescence.
Ya-Ping Sun,Bing Zhou,Yi Lin,Wei Wang,K. A. Shiral Fernando,Pankaj Pathak,Mohammed J. Meziani,Barbara A. Harruff,Xin Wang,Haifang Wang,Pengju G. Luo,Hua Yang,Muhammet E. Köse,Bailin Chen,L. Monica Veca,Su-Yuan Xie +15 more
TL;DR: It is reported that nanoscale carbon particles (carbon dots) upon simple surface passivation are strongly photoluminescent in both solution and the solid state.
Journal ArticleDOI
Highly Photoluminescent Carbon Dots for Multicolor Patterning, Sensors, and Bioimaging
Shoujun Zhu,Qingnan Meng,Lei Wang,Junhu Zhang,Yubin Song,Han Jin,Kai Zhang,Hongchen Sun,Hai-Yu Wang,Bai Yang +9 more
TL;DR: A facile and highoutput strategy for the fabrication of CDs, which is suitable for industrial-scale production and is almost equal to fluorescent dyes, is discussed.
Journal ArticleDOI
Full-Color Light-Emitting Carbon Dots with a Surface-State-Controlled Luminescence Mechanism.
TL;DR: Carbon dots with tunable photoluminescence (PL) and a quantum yield of up to 35% in water were hydrothermally synthesized in one pot and separated via silica column chromatography, and these separated CDs emitted bright and stable luminescence in gradient colors under a single-wavelength UV light.
Journal ArticleDOI
Red, Green, and Blue Luminescence by Carbon Dots: Full‐Color Emission Tuning and Multicolor Cellular Imaging
TL;DR: The facile preparation and unique optical features make these CDs potentially useful in numerous applications such as light-emitting diodes, full-color displays, and multiplexed (UC)PL bioimaging.
Journal ArticleDOI
Carbon and Graphene Quantum Dots for Optoelectronic and Energy Devices: A Review
TL;DR: In this article, recent exciting progresses on CD and GQD-based optoelectronic and energy devices, such as light emitting diodes (LEDs), solar cells (SCs), photodetctors (PDs), photocatalysis, batteries, and supercapacitors are highlighted.