Journal ArticleDOI
53% Efficient Red Emissive Carbon Quantum Dots for High Color Rendering and Stable Warm White-Light-Emitting Diodes
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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
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Journal ArticleDOI
Lifetime-Engineered Carbon Nanodots for Time Division Duplexing.
Ya-Chuan Liang,Kai-Kai Liu,Xue-Ying Wu,Qing Lou,Laizhi Sui,Lin Dong,Kaijun Yuan,Chongxin Shan +7 more
TL;DR: Time division duplexing based on eco‐friendly carbon nanodots (CNDs) with manipulative luminescence lifetimes with high‐level information encryption using the time division Duplexing technology is demonstrated and spatio‐temporal overlapping information is resolved.
Journal ArticleDOI
Surface Sensitive Photoluminescence of Carbon Nanodots: Coupling between the Carbonyl Group and π-Electron System.
Cui Liu,Cui Liu,Lei Bao,Mengli Yang,Song Zhang,Miaomiao Zhou,Bo Tang,Baoshan Wang,Yufei Liu,Zhi-Ling Zhang,Bing Zhang,Dai-Wen Pang +11 more
TL;DR: This work provides a strategy to effectively tune the structure of C-dots, giving rise to the tunable PL emission wavelength and highly desirable quantum yield, which enables us to further penetrate the PL mechanism.
Journal ArticleDOI
White Emissive Carbon Dots Actuated by the H-/J-Aggregates and Förster Resonance Energy Transfer.
TL;DR: A novel white CDs (WCDs) is synthesized that shows super stability and a high solar spectrum matching degree of 85-114%, protecting the eyesight and provides a new way to design healthy lighting materials.
Journal ArticleDOI
Luminescent carbon dots with concentration-dependent emission in solution and yellow emission in solid state.
TL;DR: The mechanism of PL conversion in this process was proposed based on the characterization results, that with the concentration of CDs rising in solution, π-π interaction was restrained while electron redistribution was induced, resulting in the PL emission shifting to long-wavelength region.
Journal ArticleDOI
Synthesis and Applications of Red-Emissive Carbon Dots
Jianying Wang,Yuhua Zhu,Lei Wang +2 more
TL;DR: This review focused on the progress of recently-emerging RCDs in the past five years, including their synthetic methods, influencing factors, and various applications (bioimaging, sensor, photocatalysis and WLEDs), with a perspective on the future advancements.
References
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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.