Journal ArticleDOI
Synthesis, applications and potential photoluminescence mechanism of spectrally tunable carbon dots
TLDR
This mini-review summarizes recent progress in studies of multicolor carbon dots focusing on potential photoluminescence (PL) mechanisms, strategies for effective syntheses, and applications in ion/molecule and temperature sensing, light emitting diodes and high-resolution bioimaging techniques.Abstract:
Due to the prominent characteristics of carbon-based luminescent nanostructures (known colloquially as carbon dots), such as inexpensive precursors, excellent hydrophilicity, low toxicity, and intrinsic fluorescence, these nanomaterials are regarded as potential candidates to replace traditional quantum dots in some applications. As such, research in the field of carbon dots has been increasing in recent years. In this mini-review, we summarize recent progress in studies of multicolor carbon dots focusing on potential photoluminescence (PL) mechanisms, strategies for effective syntheses, and applications in ion/molecule and temperature sensing, light emitting diodes and high-resolution bioimaging techniques.read more
Citations
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Photonic Carbon Dots as an Emerging Nanoagent for Biomedical and Healthcare Applications.
TL;DR: The fundamental photophysical properties of CDs are described and their recent applications to bioimaging, photomedicine (e.g., photodynamic/photothermal therapies), biosensors, and healthcare devices are highlighted.
Journal ArticleDOI
Carbon-Based Quantum Dots with Solid-State Photoluminescent: Mechanism, Implementation, and Application.
TL;DR: This review summarizes the current understanding of theSolid-state PL of solid-state CQDs from the perspective of energy band theory and electronic transitions and the applications of CQD in the fields of light-emitting devices, anti-counterfeiting, fingerprint detection, etc., are proposed.
Bright Multicolor Bandgap Fluorescent Carbon Quantum Dots for Electroluminescent Light-Emitting Diodes
TL;DR: 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.
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Photo-Stimulated Polychromatic Room Temperature Phosphorescence of Carbon Dots
TL;DR: This study proposes a strategy to prepare photo-stimulated multicolor RTP materials and reveals great potentials of CDs in exploiting novel optical materials with unique properties, as well as preliminary application of MP-CDs in advanced anti-counterfeiting.
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
Carbon quantum dots and their applications
TL;DR: The progress in the research and development of CQDs is reviewed with an emphasis on their synthesis, functionalization and technical applications along with some discussion on challenges and perspectives in this exciting and promising field.
Journal ArticleDOI
Electrophoretic analysis and purification of fluorescent single-walled carbon nanotube fragments.
Xiaoyou Xu,Robert Ray,Yunlong Gu,Harry J. Ploehn,Latha A. Gearheart,Kyle Raker,Walter A. Scrivens +6 more
TL;DR: Arc-synthesized single-walled carbon nanotubes have been purified through preparative electrophoresis in agarose gel and glass bead matrixes and promise to be interesting nanomaterials in their own right.
Journal ArticleDOI
In vivo near-infrared fluorescence imaging
TL;DR: This review focuses on those parameters that affect image signal and background during in vivo imaging with near-infrared light and exogenous contrast agents.
Journal ArticleDOI
Graphene quantum dots derived from carbon fibers.
Juan Peng,Wei Gao,Bipin Kumar Gupta,Bipin Kumar Gupta,Zheng Liu,Rebeca Romero-Aburto,Rebeca Romero-Aburto,Liehui Ge,Li Song,Lawrence B. Alemany,Xiaobo Zhan,Guanhui Gao,Guanhui Gao,Sajna Antony Vithayathil,Benny Abraham Kaipparettu,Angel A. Martí,Takuya Hayashi,Jun-Jie Zhu,Pulickel M. Ajayan +18 more
TL;DR: It is reported that during the acid treatment and chemical exfoliation of traditional pitch-based carbon fibers, that are both cheap and commercially available, the stacked graphitic submicrometer domains of the fibers are easily broken down, leading to the creation of GQDs with different size distribution in scalable amounts.