Advanced searches left 3/3

Carbon Quantum Dots - Astrophysics Data System

Summarized by Plex Scholar
Last Updated: 28 September 2022

* If you want to update the article please login/register

The fabrication of excitation-dependent fluorescence boron/nitrogen co-doped carbon quantum dots and their employment in bioimaging

Synthesis of carbon quantum dots with high quantum yield and excitation-dependent fluorescence emission is of utmost importance and offers unquestionable opportunities in biomedical applications. We have suggested a new approach for the manufacture of boron and nitrogen-coated CQDs by a simple yet effective hydrothermal process in this article. The B/N-CQDs demonstrated low toxicity and high biocompatibility by the cell viability tests by using MRC549 cell lines with IC50 values of 981 and 583 ppm, respectively.

Source link: https://ui.adsabs.harvard.edu/abs/2022CP....56211678K/abstract


Coal-based carbon quantum dots-sensitized TiO 2 NRs/PTTh heterostructure for self-powered UV detection

TiO 2 -based UV photodetectors have drew swarms of customers in recent years, thanks to their abundant raw materials and low synthesis costs. When the device's brightness was 0. 35 mW/cm 2, respectively, the rise and fall times were reduced to 91. 2 ms and 3. 19 ms. These indicate that TiO 2 NRs: C-CQDs/PTTh is capable of obtaining TiO 2 NRs: These indicate that TiO 2 NRs: C-CQDs/PTTh achieves the highest success self-powered UV light detection.

Source link: https://ui.adsabs.harvard.edu/abs/2022ApSS..60554797Z/abstract


Nitrogen and Sulfur-Doped Carbon Quantum Dots Used as Fluorescent Probes

In the present work, carbon source and thiourea were synthesized by using hydrolyzed olive leaves as a carbon source and a dopant, nitrogen-sulfur co-doped carbon quantum dots. respectively, 10. 0 and 7. 4 u03bcM, respectively, and we developed herein a quantitative method of determining the presence of AMB and Fe 3+ in water, taking advantage of such bright fluorescent characteristics.

Source link: https://ui.adsabs.harvard.edu/abs/2022JApSp.tmp..142L/abstract


One-step synthesis of C quantum dots/C doped g-C 3 N 4 photocatalysts for visible-light-driven H 2 production from water splitting

Graphitic carbon nitride, a promising metal-free photocatalyst for H2 production, is getting more and more attention as a promising metal-free photocatalyst for H2 production. The advanced C QDs/C doped photocatalyst is obtained by a one-step thermal polymerization process in this research. The photocatalytic capacity of g-C 3 N 4 has increased thanks to the synergistic effects of C doping and C QDs modification.

Source link: https://ui.adsabs.harvard.edu/abs/2022JPhD...55R4008C/abstract


Investigating the effect of N-doping on carbon quantum dots structure, optical properties and metal ion screening

Carbon quantum dots derived from biomass, a commonly used green substitute for nanomaterial synthesis, are often lacking optical stability and low photoluminescence quantum yield, and are often lacking low photoluminescence quantum yields. Optimised N-CQDs demonstrated significant improvement in fluorescence emission characteristics with a PLQ of 9. 6% compared to pure glucose derived-CQDs with nitrogen doping that have a PLQY of less than 1%. With a pH range from pH 2 to pH 11, the N-CQDs displayed excellent sensitivity as a nano-sensor for the highly volatile highly chromium chromium, which was used in photoluminescence quenching.

Source link: https://ui.adsabs.harvard.edu/abs/2022NatSR..1213806N/abstract


Photovoltaic performance improvement of organic solar cell with ZnO nanorod arrays as electron transport layer using carbon quantum dots-incorporated photoactive layer

To boost organic solar cell's photovoltaic results, the carbon quantum dots with amazing optical and electrical features have been used. The electron transport layer was prepared on ZnO seed layer-coated fluorine-doped tin oxide glass substrates, serving as the electron transport layer. The 40 vs. CQDs-integrated device had the highest power conversion effectiveness and increase of 37 percent relative to that of the device without CQDs.

Source link: https://ui.adsabs.harvard.edu/abs/2022OptMa.13212876I/abstract


Acid treatment to tune the optical properties of carbon quantum dots

Whether growth or post-treatment, the photophysical properties of carbon quantum dots can be altered by adding external elements to control photoluminescence emission wavelength and increasing quantum yield. Here, we discuss a simple acid treatment that results in the manufacture of nitrogen-doped carbon quantum dots capable of multicolor emission. The full-width half of the resulting NCQDs PL emissions can be reduced by about 46 nm in the visible light region using this acid treatment. NCQDs will be used in a variety of optoelectronic systems in the near future, according to We predict that our strategy would enable for the practical application of NCQDs in a variety of optoelectronic systems.

Source link: https://ui.adsabs.harvard.edu/abs/2022ApSS..60554690O/abstract

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions