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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Temperature-controlled spectral tuning of full-color carbon dots and their strongly fluorescent solid-state polymer composites for light-emitting diodes
TL;DR: In this paper, a gram-level synthesis of full-color carbon dots (CDs) from citric acid by controlling the temperature has been achieved, and two, four and six light-emitting CDs can be obtained, for which the emission wavelength shifts from 440 to 585 nm.
Journal ArticleDOI
Full-wood photoluminescent and photothermic materials for thermal energy storage
TL;DR: In this article, a new strategy of "taken from the wood, back into the wood" to fabricate a full-wood photoluminescent and photothermic material is proposed.
Journal ArticleDOI
An Ultrasensitive Turn-On Ratiometric Fluorescent Probes for Detection of Ag+ Based On Carbon Dots/SiO2 and Gold Nanoclusters
TL;DR: In this article, the dual-emission fluorescent probes (CSA) exhibited two fluorescence emissions at 448 and 610 nm, respectively, under a single excitation of 380 nm.
Journal ArticleDOI
PEGylated carbon dot/MnO 2 nanohybrid: a new pH/H 2 O 2 -driven, turn-on cancer nanotheranostics
Shiqing Chen,Qingyan Jia,Xiuli Zheng,Yongmei Wen,Weimin Liu,Hongyan Zhang,Jiechao Ge,Pengfei Wang +7 more
TL;DR: In vitro and in vivo analyses have revealed that CDs/MnO2-PEG nanohybrids could be applied as TME-driven, turn-on nanotheranostics for the MR/fluorescence bimodal imaging-guided PDT of cancer through precise positioning and oxygen generation.
Journal ArticleDOI
Phenylenediamine-derived near infrared carbon dots: The kilogram-scale preparation, formation process, photoluminescence tuning mechanism and application as red phosphors
Chunyu Ji,Qiurui Han,Yiqun Zhou,Jiajia Wu,Wenquan Shi,Lipeng Gao,Roger M. Leblanc,Zhili Peng +7 more
TL;DR: In this paper , the formation process of carbon dots was elucidated and the structural model was also proposed in which the key intermediates were revealed, and the optical properties of the C-dots could be reversibly tuned via a facile protonation-deprotonation process.
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.