Simple and Accurate Quantification of Quantum Dots via Single-Particle Counting

2008 ◽  
Vol 130 (12) ◽  
pp. 3750-3751 ◽  
Author(s):  
Chun-yang Zhang ◽  
Lawrence W. Johnson
Keyword(s):  
Quantum Dots ◽  
Single Particle ◽  
Particle Counting ◽  
Accurate Quantification

Homogeneous Digital Biosensor for Circulating Tumor DNA by Enumerating Dual-color Quantum Dot Complex

The Analyst ◽  
2021 ◽  
Author(s):  
Xiaojun Liu ◽  
Zhangjian Wu ◽  
Xinyi Lin ◽  
Wei Bu ◽  
Lei Qin ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Single Particle ◽  
Triple Helix ◽  
Circulating Tumor Dna ◽  
Cancer Management ◽  
Counting Approach ◽  
Particle Counting ◽  
Dual Color ◽  
One Step ◽  
Tumor Dna

Monitoring ctDNA in blood is important to cancer management. Here, we develop a one-step single particle counting approach for directly quantifying ctDNA in plasma. Hairpin DNA containing a triple helix...

Shell-Tunneling Spectroscopy of the Single-Particle Energy Levels of Insulating Quantum Dots

Nano Letters ◽  
2001 ◽  
Vol 1 (10) ◽  
pp. 551-556 ◽  
Author(s):  
E. P. A. M. Bakkers ◽  
Z. Hens ◽  
A. Zunger ◽  
A. Franceschetti ◽  
L. P. Kouwenhoven ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Single Particle ◽  
Energy Levels ◽  
Tunneling Spectroscopy ◽  
Particle Energy ◽  
Single Particle Energy

ANTI-RESONANCES OF TUNNELING THROUGH A QUANTUM WIRE WITH SIDE-COUPLED QUANTUM DOTS

2001 ◽  
Vol 15 (31) ◽  
pp. 4111-4121 ◽  
Author(s):  
JIN-FU FENG ◽  
SHI-JIE XIONG
Keyword(s):  
Quantum Dots ◽  
Single Particle ◽  
Low Temperatures ◽  
Quantum Wire ◽  
Coulomb Blockade ◽  
Destructive Interference ◽  
Channel Network ◽  
Coupled Quantum Dots ◽  
Coulomb Blockade Regime ◽  
Simple Summation

We study the transport properties of electrons in a quantum wire with side-coupled quantum dots in Coulomb blockade regime by the use of the equivalent single-particle multi-channel network and Landauer formula. At low temperatures the calculated dependence of the conductance on the gate voltage of dots exhibits two dips, indicating the destructive interference of the wave directly transmitted through the wire and the wave reflected from the dots. In a wire with more than one side-coupled dots the suppression of conductance is a simple summation of the effects of scattering of all the dots. The possibility of fabricating tunable switch devices by using such structures is discussed.

ENERGY STATES IN QUANTUM DOTS

2002 ◽  
Vol 12 (01) ◽  
pp. 15-43 ◽  
Author(s):  
ANDREW J. WILLIAMSON
Keyword(s):  
Quantum Dots ◽  
Absorption Spectrum ◽  
Electronic Structure ◽  
Optical Absorption ◽  
Configuration Interaction ◽  
Single Particle ◽  
Optical Absorption Spectrum ◽  
Semiconductor Quantum Dots ◽  
Binding Energies ◽  
Particle Level

We describe a procedure for calculating the electronic structure of semiconductor quantum dots containing over one million atoms. The single particle electron levels are calculated by solving a Hamiltonian constructed from screened atomic pseudopotentials. Effects beyond the single particle level such as electron and hole exchange and correlation interactions are described using a configuration interaction (CI) approach. Application of these methods to the calculation of the optical absorption spectrum, Coulomb repulsions and multi-exciton binding energies of InGaAs self-assembled quantum dots are presented.

Effect of the shell on the blinking statistics of core-shell quantum dots: A single-particle fluorescence study

2007 ◽  
Vol 75 (12) ◽  
Author(s):  
Colin D. Heyes ◽  
Andrei Yu. Kobitski ◽  
Vladimir V. Breus ◽  
G. Ulrich Nienhaus
Keyword(s):  
Quantum Dots ◽  
Single Particle ◽  
Core Shell ◽  
Fluorescence Study

Two blinking mechanisms in highly confined AgInS2and AgInS2/ZnS quantum dots evaluated by single particle spectroscopy

Nanoscale ◽  
2016 ◽  
Vol 8 (7) ◽  
pp. 4151-4159 ◽  
Author(s):  
B. Cichy ◽  
R. Rich ◽  
A. Olejniczak ◽  
Z. Gryczynski ◽  
W. Strek
Keyword(s):  
Quantum Dots ◽  
Single Particle ◽  
Single Particle Spectroscopy
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