Electronic structure and luminescence center of blue luminescent carbon nanocrystals

Zhou, Jigang; Zhou, Xingtai; Li, Ruying; Sun, Xueliang; Ding, Zhifeng; Cutler, J. N.; Sham, Tsun‐Kong

doi:10.1016/j.cplett.2009.04.075

Cited by 50 publications

(44 citation statements)

References 24 publications

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“…In order to verify the aforementioned phenomena of the limited formation of SEI thin film with CBN35 carbon black electrodes, the surface sensitive TEY-mode C K-edge X-ray absorption spectra at different electrochemical states in DEGDME-based electrolyte are displayed in Fig.6(d). For pristine electrodes, sharp peaks at 285.4 eV and 292.4 eV can be found and are attributed to carbon 1s core electrons excited to π(C-C)* and σ(C-C)* orbitals 91 , respectively, while the small peak around 288.3 eV may be related to π (C=O)* transitions [91][92][93][94] .…”

Section: Resultsmentioning

confidence: 98%

Boosting the sodium storage behaviors of carbon materials in ether-based electrolyte through the artificial manipulation of microstructure

et al. 2019

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The porous carbon blacks rationally designed by an NH3 etching route have been investigated as anode materials in DEGDME (Diethylene glycol dimethyl ether)-based electrolyte for sodium-ion batteries. The as-synthesized CBN35 carbon black with highest microporosity and appropriate surface area, exhibits a large specific charge capacity of 352 mAh g-1 at 50 mA g-1 and a superior rate capability of 125 mAh g-1 at 3200 mA g-1. Even cycled at 1600 mA g-1 over 3200 cycles, an outstanding reversible capacity of 103 mAh g-1 with a negligible 0.0162% capacity loss per cycle can still be achieved. Based on multimodal characterizations, including the structural probe of the evolution of carbon materials, the electrochemical techniques, and surface-sensitive XAS measurements, the exceptional electrochemical properties stem from several advantages of the modified carbon black system. The particular microporous structure provides relatively more accessible sodium storage sites and a hybrid insertion mechanism with sodium ion insertion into disordered structure while solvated sodium ion intercalation into graphitic phase. The system also features a controlled emergence of a robust SEI thin film, which could maintain the fragile porous structure and facilitate the sodium ions/solvated sodium ion migration.

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Section: Resultsmentioning

confidence: 98%

Boosting the sodium storage behaviors of carbon materials in ether-based electrolyte through the artificial manipulation of microstructure

et al. 2019

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“…Though the mechanisms based on particle size distribution, surface traps and quantum effects, charge transfer, intramolecular H-bonds, electronic conjugate structure, defects, etc., are more popular in this case, till now, the actual PL mechanism is still an open debate for related researchers. [18][19][20][21][22] On the other side, conjugate polymers are also of great interest because of their ability to control the energy gap and electronegativity through molecular design that has made possible the synthesis of conducting polymers with a range of ionization potentials and electron affinities. [23,24] More interestingly, most of the conjugated polymer shows PL quenching upon oxidation, while developing oxidation-resistance can lead to an increment of PL emission.…”

Section: Q2mentioning

confidence: 99%

Green Nanotechnology from Waste Carbon–Polyaniline Composite: Generation of Wavelength‐Independent Multiband Photoluminescence for Sensitive Ion Detection

Goswami

Nandy

Deuermeier

et al. 2017

Advanced Sustainable Systems

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Funding bodies included and grant numbers accurate Title of article OK All figures included Equations correct (symbols and sub/superscripts) Corrections should be made directly in the PDF file using the PDF annotation tools. If you have questions about this, please contact the editorial office. The corrected PDF and any accompanying files should be uploaded to the journal's Editorial Manager site.

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“…Multiwalled carbon nanotubes can be converted electrochemically into carbon nanoparticles with a diameter of 2.8 nm and the materials exhibit 410 nm luminescence 127. The nanoparticles are graphitic but have an oxidized surface 128. Carbon nanoparticles can also be derived from candle soot.…”

Section: Carbonmentioning

confidence: 99%

Group IV Nanoparticles: Synthesis, Properties, and Biological Applications

Fan

Chu

2010

Small

278

207

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In this review, the emerging roles of group IV nanoparticles including silicon, diamond, silicon carbide, and germanium are summarized and discussed from the perspective of biologists, engineers, and medical practitioners. The synthesis, properties, and biological applications of these new nanomaterials have attracted great interest in the past few years. They have gradually evolved into promising biomaterials due to their innate biocompatibility; toxic ions are not released when they are used in vitro or in vivo, and their wide fluorescence spectral regions span the near-infrared, visible, and near-ultraviolet ranges. Additionally, they generally have good resistance against photobleaching and have lifetimes on the order of nanoseconds to microseconds, which are suitable for bioimaging. Some of the materials possess unique mechanical, chemical, or physical properties, such as ultrachemical and thermal stability, high hardness, high photostability, and no blinking. Recent data have revealed the superiority of these nanoparticles in biological imaging and drug delivery.

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Electronic structure and luminescence center of blue luminescent carbon nanocrystals

Cited by 50 publications

References 24 publications

Boosting the sodium storage behaviors of carbon materials in ether-based electrolyte through the artificial manipulation of microstructure

Boosting the sodium storage behaviors of carbon materials in ether-based electrolyte through the artificial manipulation of microstructure

Green Nanotechnology from Waste Carbon–Polyaniline Composite: Generation of Wavelength‐Independent Multiband Photoluminescence for Sensitive Ion Detection

Group IV Nanoparticles: Synthesis, Properties, and Biological Applications

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