Kerr nonlinearity enhancement by double tunnelling from quantum dot nanostructure
Results in Physics, 2016 A model of the dynamical equations of the density matrix describes double tunnelling between double quantum dot (QD) system states, this is to study Kerr nonlinearity in QD structure.
B. Al-Nashy +2 more
doaj +1 more source
Colloidal Arenethiolate-Capped PbS Quantum Dots: Optoelectronic Properties, Self-Assembly, and Application in Solution-Cast Photovoltaics [PDF]
, 2013 Suitable postsynthesis surface modification of lead-chalcogenide quantum dots (QDs) is crucial to enable their integration in photovoltaic devices. Here we exploit arenethiolate anions to completely replace pristine oleate ligands on PbS QDs in the ...
L. Carbone +21 more
core +1 more source
Proteomic Analysis Identifies Markers of Exposure to Cadmium Sulphide Quantum Dots (CdS QDs) [PDF]
Nanomaterials, 2020 The use of cadmium sulphide quantum dot (CdS QD)-enabled products has become increasingly widespread. The prospect of their release in the environment is raising concerns. Here we have used the yeast model Saccharomyces cerevisiae to determine the potential impact of CdS QD nanoparticles on living organisms. Proteomic analyses and cell viability assays
Valentina Gallo +6 more
openaire +5 more sources
Peptide-Conjugated Quantum Dots Act as the Target Marker for Human Pancreatic Carcinoma Cells
Cellular Physiology and Biochemistry, 2016 Background/Aims: In the present study, we describe a novel and straightforward approach to produce a cyclic- arginine-glycine-aspartic (RGD)-peptide-conjugated quantum dot (QD) probe as an ideal target tumor biomarker.
Shuang-ling Li +6 more
doaj +1 more source
Quantum dot Josephson junctions in the Kondo regime [PDF]
, 2010 In this thesis, we study quantum dots (QD) fabricated from single-wall carbon nanotubes (SWCNT). The SWCNT are connected to source (S) and drain (D) leads by tunnelling contacts whose transparency is characterized by their respective coupling parameters,
Eichler, Alexander T.
core +1 more source
Analysis and Simulation of the Optical Properties of a Quantum Dot on a Graphene Nanoribbon System
Photonics, 2022 In this work, we theoretically study the optical properties of a graphene nanoribbon with a quantum dot (QD) on it. The system consists of a graphene nanoribbon with dimensions of 400 × 3100 (nm2) and a quantum dot with a nanoscale radius.
Sahar Armaghani +2 more
doaj +1 more source
Short pulse generation with 40 GHz passively-mode locked Q-dashed Fabry-Pérot laser [PDF]
, 2009 Generation of sub-picosecond pulses by a DC-biased passively mode-locked Fabry-Perot laser is demonstrated. By using a tunable band-pass filter, it is observed that the width of the generated pulses decreases in direct proportion to the optical modes ...
Latkowski, Sylwester +5 more
core +1 more source
Cellular uptake of aptamer by Quantum Dots (QDs) [PDF]
Biomarkers and Drug Discovery, 2018 Aptamers are short single stranded oligonucleotide sequences that exhibit high binding affinity and high specificity against their target molecule. Binding affinity and specificity are crucial features for aptamers in order to exploit their therapeutic and diagnostic potential and to make them an appealing candidate for the commercial market1,2 ...
openaire +1 more source
Photoacoustic Study of CdS QDs for Application in Quantum‐Dot‐Sensitized Solar Cells [PDF]
Journal of Nanomaterials, 2012 The optical properties and photovoltaic characterization of CdS quantum dots sensitized solar cells (QDSSCs) were studied. CdS QDs were prepared by the chemical solution deposition (CD) technique. Photoacoustic spectroscopy (PA) was employed to study the optical properties of the prepared samples.
S. Abdallah, N. Al-Hosiny, Ali Badawi
openaire +1 more source
Refractive index change in a double quantum dot structure
Results in OpticsThe density matrix theory models the refractive index change in a double quantum dot (DQD) system. The orthogonalized plane wave (OPW) is considered for wetting layer (WL)-quantum dot (QD) transitions, and the transition momenta are calculated.
Suha Hadi +4 more
doaj +1 more source