Journal ArticleDOI
Tunable multicolor carbon dots prepared from well-defined polythiophene derivatives and their emission mechanism.
TLDR
A tunable photoluminescence mechanism is proposed to result from variations in the surface state and N content, and the C-dots are candidates for bio-imaging.Abstract:
Various functional precursors based on polythiophene derivatives are designed to prepare carbon dots (C-dots) with tunable emissions ranging from blue to near-infrared (NIR) at a single excitation wavelength (400 nm). The as-prepared C-dots demonstrate homogeneous size, superior optical properties, excellent water solubility, and low cytotoxicity. Thus, the C-dots are candidates for bio-imaging. A tunable photoluminescence mechanism is proposed to result from variations in the surface state and N content.read more
Citations
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Solvent Free Synthesis of Nitrogen Doped Carbon Dots with Dual Emission and Their Biological and Sensing Applications
TL;DR: In this article , dual emissive nitrogen-doped carbon dots (N-Doped CDs) are synthesized by simple annealing of ammonium citrate in the air via solvent-free carbonization.
Journal ArticleDOI
Preparation and Fluorescent Wavelength Control of Multi-Color Nitrogen-Doped Carbon Nano-Dots
TL;DR: In this paper, the effect of different ratios of the raw materials on the structure and optical properties of carbon nano-dots (CNDs) was examined and it was shown that the prepared CNDs can generate blue (445 nm), green (546 nm), and orange (617 nm) fluorescence or PL with the mass ratio at 1:1, 1:2 and 1:3, respectively.
Journal ArticleDOI
Manganese and dysprosium codoped carbon quantum dots as a potential fluorescent/T1/T2/CT quadri-modal imaging nanoprobe
Chunxing Li,Wang Yun,Huayan Nong,Hu Xiaoxi,Yu Wu,Zhang Yanjun,Caimei Liang,Keguang Chen,Songliang Li +8 more
TL;DR: In this paper, a new manganese and dysprosium codoped carbon quantum dots (Mn,Dy-CQDs) with a mean diameter of 1.77 nm was synthesized for fluorescence imaging, T1/T2-weighted magnetic resonance imaging (T 1/T 2 -weighted MRI), and x-ray computed tomography (CT) imaging using a simple one-step hydrothermal approach.
Journal ArticleDOI
Green light-emitting carbon dots via eco-friendly route and their potentials in ferric ion detection and WLEDs
TL;DR: As a rising star of carbon family, carbon dots (CDs) have been attracting tremendous interests of scientific community, by virtue of their unique physicochemical, optical, and electronic properties as mentioned in this paper .
References
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Journal ArticleDOI
Luminescent Carbon Nanodots: Emergent Nanolights
Sheila N. Baker,Gary A. Baker +1 more
TL;DR: This Review summarize recent advances in the synthesis and characterization of C-dots and speculate on their future and discuss potential developments for their use in energy conversion/storage, bioimaging, drug delivery, sensors, diagnostics, and composites.
Journal ArticleDOI
Metal-free efficient photocatalyst for stable visible water splitting via a two-electron pathway
Juan Liu,Yang Liu,Naiyun Liu,Yuzhi Han,Xing Zhang,Hui Huang,Yeshayahu Lifshitz,Yeshayahu Lifshitz,Shuit-Tong Lee,Jun Zhong,Zhenhui Kang +10 more
TL;DR: The design and fabrication of a metal-free carbon nanodot–carbon nitride (C3N4) nanocomposite is reported and its impressive performance for photocatalytic solar water splitting is demonstrated.
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
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.