scholarly journals Manipulation of Confined Polyelectrolyte Conformations through Dielectric Mismatch

ACS Nano ◽  
2019 ◽  
Vol 13 (8) ◽  
pp. 9298-9305 ◽  
Author(s):  
Trung Dac Nguyen ◽  
Monica Olvera de la Cruz
Keyword(s):  
Dielectric Mismatch

scholarly journals Dielectric mismatch and shallow donor impurities in GaN/HfO2 quantum wells

2015 ◽  
Vol 66 ◽  
pp. 81-86 ◽  
Author(s):  
T.A.S. Pereira ◽  
A.A. Sousa ◽  
M.H. Degani ◽  
G.A. Farias
Keyword(s):  
Quantum Wells ◽  
Shallow Donor ◽  
Dielectric Mismatch

Electronic and shallow donor impurity states in GaAs‐Ga1−xAlxAs quantum‐well wires: Effects of dielectric mismatch

1994 ◽  
Vol 75 (11) ◽  
pp. 7389-7393 ◽  
Author(s):  
Zhen‐Yan Deng ◽  
Ting‐Rong Lai ◽  
Jing‐Kun Guo ◽  
Shi‐Wei Gu
Keyword(s):  
Quantum Well ◽  
Shallow Donor ◽  
Donor Impurity ◽  
Impurity States ◽  
Quantum Well Wires ◽  
Dielectric Mismatch

Molecular doping and gas sensing in Si nanowires: From charge injection to reduced dielectric mismatch

2013 ◽  
Vol 114 (20) ◽  
pp. 204302 ◽  
Author(s):  
Giampiero Amato ◽  
Alessandro Cultrera ◽  
Luca Boarino ◽  
Carlo Lamberti ◽  
Silvia Bordiga ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Charge Injection ◽  
Si Nanowires ◽  
Molecular Doping ◽  
Dielectric Mismatch

A Theoretical Formula for the Validity Limits of the Dipole Approximation for a Dielectric Mixture

2014 ◽  
Vol 906 ◽  
pp. 72-80
Author(s):  
Chang He Yang ◽  
Ding Long Cao ◽  
Lin Song Guo
Keyword(s):  
Finite Element Method ◽  
Numerical Solutions ◽  
Volume Fraction ◽  
Dipole Approximation ◽  
Empirical Method ◽  
Theoretical Formula ◽  
The Finite Element Method ◽  
Dielectric Mixture ◽  
Good Agreement ◽  
Dielectric Mismatch

A newly criterion for the validity limits of the dipole approximation for a dielectric mixture was presented, based on the comparison between the dipole approximation and the numerical solutions by the finite-element method (FEM). In terms of this criterion and the dipole-enhanced model, a simple theoretical formula for the validity limits was derived. This formula includes three variables: the dielectric mismatch, the volume fraction of particles and the precision. Its calculated results have a good agreement with the limits determined by the empirical method in the range of our interest, which indicates the theoretical formula is creditable. Using this formula, we can approximate the precision of the dipole approximation for an arbitrary dielectric mixture. And we found that the dipole approximation is acceptable with the precision equal to 30% when the dielectric mismatch is less than 2.3 (εi/ εe2.3) for the almost touching spheres.

scholarly journals Addition Spectra of Quantum Dots:  the Role of Dielectric Mismatch

2000 ◽  
Vol 104 (15) ◽  
pp. 3398-3401 ◽  
Author(s):  
A. Franceschetti ◽  
A. Williamson ◽  
A. Zunger
Keyword(s):  
Quantum Dots ◽  
Dielectric Mismatch
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