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
One-Pot Synthesis of Dual Color-Emitting CDs: Numerical and Experimental Optimization towards White LEDs
Gianluca Minervini,Antonino Madonia,Annamaria Panniello,Elisabetta Fanizza,Maria Lucia Curri,Marinella Striccoli +5 more
TL;DR: In this paper , a one-pot solvothermal synthesis of polymer-passivated CDs that show a dual emission band (in the green and in the red regions) upon blue light excitation is presented.
Journal ArticleDOI
High-Yield, Stable, and Ultrasensitive Carbon Dots for pH Sensing and Fe2+ Detection Are Synthesized at Room Temperature
Chunyu Yu,Xue Li,Xin Qiao,Zhiwei Zhang,Dan-Dan Zhang,Hua Liu,Xueguang Hao,Zhong-Ye Wang,Hongpeng You,Liang Zhou +9 more
TL;DR: Fluorescent carbon quantum dots (r-CDs) were synthesized safely and readily by stirring at room temperature with a yield of 76.5% under the excitation of ultraviolet light as mentioned in this paper .
Journal ArticleDOI
Deep‐Red to Near‐Infrared Carbon Dots in Biosensing and Biomedical Applications
TL;DR: In this article , a thorough description and discussion of this topic is beneficial to capture the up-to-date progress of CDs in this field, providing suggestions and considerations for readers.
Journal ArticleDOI
A review of fluorescent carbon dots: synthesis, photoluminescence mechanism, solid-state photoluminescence and applications in white light-emitting diodes
TL;DR: In this paper , fluorescent carbon dots (CDs) have been extensively investigated, due to their excellent fluorescence tunability, good biocompatibility, wide range of precursors and low cost.
Journal ArticleDOI
Alkali-assisted facile and scalable preparation of fluorescent sulfur-doped carbon dots with excellent optical and biological properties from thioctic acid
TL;DR: In this article , an excess sodium hydroxide (NaOH) assisted method by for the preparation of sulfur-doped carbon dots (S-CDs) at lower temperatures using thioctic acid (TA).
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.