Results 21 to 30 of about 111,252 (299)
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
Editorial for the Special Issue Entitled “Carbon-Based Quantum Dots”
Nanomaterials, 2023 Carbon-based quantum dots, also known as carbon dots (CDs), are a unique class of carbon-based nanoparticles with sizes below 10 nm [...]
Su Chen
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
core +3 more sources
Lights and Dots toward Therapy—Carbon-Based Quantum Dots as New Agents for Photodynamic Therapy
Pharmaceutics, 2023 The large number of deaths induced by carcinoma and infections indicates that the need for new, better, targeted therapy is higher than ever. Apart from classical treatments and medication, photodynamic therapy (PDT) is one of the possible approaches to ...
Svetlana Jovanović +7 more
doaj +1 more source
Green fluorescent sensor based on carbon quantum dots for Cr(VI) determination [PDF]
شیمی کاربردی روز, 2018 In this study, a new, cheap and green fluorescence sensor based on carbon quantum dots was used for Cr (VI) determination. Carbon quantum dots were synthesized from citric acid, polyvidon and boric acid by microwave assisted method.
Reza Tabaraki +2 more
doaj +1 more source
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
Gate-Defined Quantum Dots on Carbon Nanotubes [PDF]
Nano Letters, 2005 We report the realization of nanotube-based quantum dot structures that use local electrostatic gating to produce individually controllable dots in series along a nanotube. Electrostatic top-gates produce depletion regions in the underlying tube; a pair of such depletion regions defines a quantum dot.
Biercuk, M. J. +4 more
openaire +4 more sources
Carbon Dots and Graphene Quantum Dots in Electrochemical Biosensing [PDF]
Nanomaterials, 2019 Graphene quantum dots (GQDs) and carbon dots (CDs) are among the latest research frontiers in carbon-based nanomaterials. They provide interesting attributes to current electrochemical biosensing due to their intrinsic low toxicity, high solubility in many solvents, excellent electronic properties, robust chemical inertness, large specific surface area,
Susana Campuzano +2 more
openaire +5 more sources
Beilstein Journal of Nanotechnology, 2023 Carbon quantum dots as a novel type of carbon nanomaterials have attracted the attention of many researchers because of their unique optical, antibacterial, and anticancer properties as well as their biocompatibility.
Zoran M. Marković +9 more
doaj +1 more source
Carbon-Based Quantum Dots for Supercapacitors: Recent Advances and Future Challenges
Nanomaterials, 2021 Carbon-based Quantum dots (C-QDs) are carbon-based materials that experience the quantum confinement effect, which results in superior optoelectronic properties.
Fitri Aulia Permatasari +3 more
doaj +1 more source