Results 21 to 30 of about 301,103 (302)
Electron-vibron coupling in suspended carbon nanotube quantum dots [PDF]
, 2009 Motivated by recent experiments, we investigate the electron-vibron coupling in suspended carbon nanotube quantum dots, starting with the electron-phonon coupling of the underlying graphene layer. We show that the coupling strength depends sensitively on
A. N. Cleland +6 more
core +2 more sources
Carbon dots for photothermal applications
Frontiers in Chemistry, 2022 Carbon dots are zero-dimensional nanomaterials that have garnered significant research interest due to their distinct optical properties, biocompatibility, low fabrication cost, and eco-friendliness. Recently, their light-to-heat conversion ability has led to several novel photothermal applications.
Salar Balou +2 more
openaire +3 more sources
Carbon Dots for Sensing and Killing Microorganisms
C, 2019 Carbon dots (or carbon quantum dots) are small (less than 10 nm) and luminescent carbon nanoparticles with some form of surface passivation. As an emerging class of nanomaterials, carbon dots have found wide applications in medicine, bioimaging, sensing,
Fengming Lin, Yan-Wen Bao, Fu-Gen Wu
doaj +1 more source
A Review of Carbon Dots Produced from Biomass Wastes
Nanomaterials, 2020 The fluorescent carbon dot is a novel type of carbon nanomaterial. In comparison with semiconductor quantum dots and fluorescence organic agents, it possesses significant advantages such as excellent photostability and biocompatibility, low cytotoxicity ...
Chao Kang +4 more
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Cumhuriyet Science Journal, 2020 Carbon dots, due to their minimal size, non-toxicity, simple, cheap and easy synthesis; Among the studies on nanostructured materials that have attracted attention in recent years; has become a popular study topic for researchers.
Hasan Eskalen, Mustafa Çeşme
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Hyperfine-induced valley mixing and the spin-valley blockade in carbon-based quantum dots [PDF]
, 2009 Hyperfine interaction (HFI) in carbon nanotube and graphene quantum dots is due to the presence of 13C atoms. We theoretically show that in these structures the short-range nature of the HFI gives rise to a coupling between the valley degree of freedom ...
Burkard, Guido, Pályi, András
core +2 more sources
Nature Communications, 2021 Carbon dots have garnered great interest due to their optical properties, however, engineering of the optical properties remains a challenge. Here, Zhang et al. produce carbon dots with a high color purity, providing a useful approach for engineering the
Qing Zhang +4 more
doaj +1 more source
Sources of negative tunneling magneto-resistance in multilevel quantum dots with ferromagnetic contacts [PDF]
, 2011 We analyze distinct sources of spin-dependent energy level shifts and their impact on the tunneling magnetoresistance (TMR) of interacting quantum dots coupled to collinearly polarized ferromagnetic leads.
Jens Paaske +3 more
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High Stability Carbon Dots Phosphor and Ultra-High Color Rendering Index White Light-Emitting Diodes
IEEE Photonics Journal, 2022 A new kind of carbon dots based phosphor is developed for light emitting diodes (LED) by adsorbing carbon dots to starch particles. The bonding mechanism is based on hydrogen bonding of surface functional groups of carbon dots and starch particles ...
Yuxian Yan +4 more
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Nanomaterials, 2021 We report a study of carbon dots produced via bottom-up and top-down routes, carried out through a multi-technique approach based on steady-state fluorescence and absorption, time-resolved fluorescence spectroscopy, Raman spectroscopy, infrared ...
Federico Bruno +8 more
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