Results 21 to 30 of about 35,825 (292)

Quantum dots (QDs) for photonic applications

open access: yesOptical Materials Express, 2012
Quantum dots and their chemical adaptation for various photonic applications are presented in this review. The use of quantum dots as photoactive components in many applications requires their combination with other materials playing specific roles for separation and transport of charge carriers. Achieving good interfaces between electronically matched
Prabhakaran, Prem   +3 more
openaire   +2 more sources

Optical molecular sensing with semiconductor quantum dots (QDs)

open access: yesChemical Society Reviews, 2012
Semiconductor quantum dots (QDs) exhibit unique optical and photophysical properties. These features are implemented to develop optical molecular sensor systems. The review addresses the methods to functionalize the QDs with chemical capping layers that enable the use of the resulting hybrid structures for sensing, and discusses the photophysical ...
R. Freeman, I. Willner
openaire   +2 more sources

Design and Simulation of Two Bits Single-electron Logic Circuit using Double Quantum Dot Single Electron Transistor

open access: yesInternational Journal of Technology, 2014
Electrons in a single electron transistor (SET) are transported one by one from source to drain based on the coulomb blockade mechanism. The transport rate is sensitively influenced by the presence of event a single electron charge located near the ...
Arief Udhiarto   +3 more
doaj   +1 more source

An artificial Rb atom in a semiconductor with lifetime-limited linewidth [PDF]

open access: yes, 2015
We report results important for the creation of a best-of-both-worlds quantum hybrid system consisting of a solid-state source of single photons and an atomic ensemble as quantum memory.
Jahn, Jan-Philipp   +12 more
core   +1 more source

A review on Quantum Dots (QDs) and their biomedical applications

open access: yes4open, 2023
Quantum dots (QDs) are nanoscale semiconductor crystals that possess special characteristics, and they are used in various fields. The crystals are composed of elements that usually lie within the groups II-VI or III–V respectively. The diameter of these crystals is usually smaller than the Bohr excitation radius.
Avirup Panja, Prasun Patra
openaire   +2 more sources

Bistability in the Electric Current through a Quantum-Dot Capacitively Coupled to a Charge-Qubit [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2018
We investigate the electronic transport through a single-level quantum-dot which is capacitively coupled to a charge-qubit. By employing the method of nonequilibrium Green's functions, we calculate the electric current through quantum dot at finite bias ...
S. M. Tabatabaei
doaj   +1 more source

Experimental and Atomistic Theoretical Study of Degree of Polarization from Multi-layer InAs/GaAs Quantum Dots [PDF]

open access: yes, 2011
Recent experimental measurements, without any theoretical guidance, showed that isotropic polarization response can be achieved by increasing the number of QD layers in a QD stack.
Gerhard Klimeck   +6 more
core   +3 more sources

Using CdTe/ZnSe Core/Shell Quantum Dots to Detect DNA and Damage to DNA [Corrigendum]

open access: yesInternational Journal of Nanomedicine, 2022
Moulick A, Milosavljevic V, Vlachova J, et al. Int J Nanomedicine. 2018;12:1277–1291. The authors have advised due to an error that occurred inadvertently at the time of figure assembly, the QD+C image in Figure 1E on page 1282 is incorrect.
Moulick A   +6 more
doaj  

Finite Element Modeling Piezoelectric Materials under Thermal Loads with Application for Quantum Dots

open access: yesCommunications, 2017
Significant research has been done in the analysis of properties of quantum dots over the previous decade. A 3D finite element model is developed to analyze quantum dots (QD) under static thermal loads.
Milan Zmindak, Pavol Novak, Peter Bishay
doaj   +1 more source

Heterovalent Cation Substitutional and Interstitial Doping in Semiconductor Sensitizers for Quantum Dot Cosensitized Solar Cell

open access: yesInternational Journal of Photoenergy, 2015
Doped films of TiO2/PbS/CdS have been prepared by successive ionic layer adsorption and reaction (SILAR) method. Bi- and Ag-doped-PbS quantum dot (QD) were produced by admixing Bi3+ or Ag+ during deposition and the existing forms of the doping element in
Ningning Zhang, Xiaoping Zou, Yanyan Gao
doaj   +1 more source

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