Variational method of energy level calculation in pyramidal quantum dots

2020 ◽  
Vol 127 (15) ◽  
pp. 154301
Author(s):  
A. V. Nenashev ◽  
A. V. Dvurechenskii
Keyword(s):  
Quantum Dots ◽  
Energy Level ◽  
Variational Method ◽  
Level Calculation

scholarly journals PbS Quantum Dots: Size, Ligand Dependent Energy Level Structures and Their Effects on the Performance of Heterojunction Solar Cells

2016 ◽  
Vol 31 (9) ◽  
pp. 915 ◽  
Author(s):  
WANG Heng ◽  
ZHAI Guang-Mei ◽  
ZHANG Ji-Tao ◽  
YANG Yong-Zhen ◽  
LIU Xu-Guang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Energy Level ◽  
Heterojunction Solar Cells ◽  
Pbs Quantum Dots

Theoretical Study on the Transport through a Quantum Dots Array with a Side Quantum Dot

2011 ◽  
Vol 340 ◽  
pp. 331-336
Author(s):  
Hai Tao Yin ◽  
Xiao Jie Liu ◽  
Wei Long Wan ◽  
Cheng Bao Yao ◽  
Li Na Bai ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Green Function ◽  
Energy Level ◽  
Quantum Dot ◽  
Quantum Interference ◽  
Theoretical Study ◽  
Equation Of Motion ◽  
Function Technique ◽  
Motion Method ◽  
Linear Conductance

We studied transport properties through a noninteracting quantum dots array with a side quantum dot employing the equation of motion method and Green function technique. The linear conductance has been calculated numerically. It is shown that an antiresonance always pinned at the energy level of side quantum dot. The conductance develops Fano line shape when the side quantum dot level is not aligned with that of the quantum dots in the array due to quantum interference through different channels.

Redshift and discrete energy level separation of self-assembled quantum dots induced by strain-reducing layer

2011 ◽  
Vol 109 (6) ◽  
pp. 064320 ◽  
Author(s):  
Yongxian Gu ◽  
Tao Yang ◽  
Haiming Ji ◽  
Pengfei Xu ◽  
Zhanguo Wang
Keyword(s):  
Quantum Dots ◽  
Energy Level ◽  
Discrete Energy ◽  
Discrete Energy Level ◽  
Self Assembled

Energy-level structure of nitrogen-doped graphene quantum dots

2013 ◽  
Vol 1 (32) ◽  
pp. 4908 ◽  
Author(s):  
Libin Tang ◽  
Rongbin Ji ◽  
Xueming Li ◽  
Kar Seng Teng ◽  
Shu Ping Lau
Keyword(s):  
Quantum Dots ◽  
Energy Level ◽  
Level Structure ◽  
Graphene Quantum Dots ◽  
Energy Level Structure ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Measuring the energy level repulsion in quantum dots

2003 ◽  
Vol 33 (5-6) ◽  
pp. 291-300
Author(s):  
T. Heinzel ◽  
S. Lüscher ◽  
M. Furlan ◽  
K. Ensslin
Keyword(s):  
Quantum Dots ◽  
Energy Level

scholarly journals Light management with quantum nanostructured dots-in-host semiconductors

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
M. Alexandre ◽  
H. Águas ◽  
E. Fortunato ◽  
R. Martins ◽  
M. J. Mendes
Keyword(s):  
Quantum Dots ◽  
Energy Level ◽  
Effective Mass ◽  
Potential Barrier ◽  
Level Structure ◽  
Colloidal Quantum Dots ◽  
Absorption Coefficients ◽  
Energy Level Structure ◽  
Bulk Semiconductors ◽  
Light Management

AbstractInsightful knowledge on quantum nanostructured materials is paramount to engineer and exploit their vast gamut of applications. Here, a formalism based on the single-band effective mass equation was developed to determine the light absorption of colloidal quantum dots (CQDs) embedded in a wider bandgap semiconductor host, employing only three parameters (dots/host potential barrier, effective mass, and QD size). It was ascertained how to tune such parameters to design the energy level structure and consequent optical response. Our findings show that the CQD size has the biggest effect on the number and energy of the confined levels, while the potential barrier causes a linear shift of their values. While smaller QDs allow wider energetic separation between levels (as desired for most quantum-based technologies), the larger dots with higher number of levels are those that exhibit the strongest absorption. Nevertheless, it was unprecedently shown that such quantum-enabled absorption coefficients can reach the levels (104–105 cm−1) of bulk semiconductors.

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