Geometrical control of the interatomic coulombic decay process in quantum dots for infrared photodetectors
Geometrical control of the interatomic coulombic decay process in quantum dots for infrared photodetectors
复制标题
红外光电探测器量子点原子间库仑衰变过程的几何控制
DOI:
10.1002/jcc.24410
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发表时间:
2016
影响因子:
3
通讯作者:
A. Bande
中科院分区:
文献类型:
--
作者:
P. Dolbundalchok;D. Peláez;E. F. Aziz;A. Bande
In electron dynamics calculations the interatomic Coulombic decay (ICD) process has recently been shown to take place in two vertically‐aligned quantum dots (QDs). Energy emitted during the relaxation of one electron in one QD is converted into kinetic energy of another electron ejected from a neighboring QD. As the electronic structure of QDs can be controlled by their geometries, we prove here in thorough scans of the transversal and vertical QD confinement potentials’ widths that geometries are likewise control parameters for ICD. Such a comprehensive investigation has been enabled by a significant development of the calculations in terms of speed achieved among others by optimization of the grid and Coulomb interaction operator representations. As key result of this study we propose two cigar‐shaped singly‐charged GaAs QDs vertically aligned in the direction of their long side for a most efficient QD ICD realization useful for an infrared photodetector. © 2016 Wiley Periodicals, Inc.
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影响因子:
4.4
作者:
D. Peláez;H. Meyer
通讯作者:
H. Meyer
影响因子:
3.3
作者:
I. Unger;D. Hollas;R. Seidel;S. Thürmer;E. F. Aziz;P. Slavíček;B. Winter
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B. Winter
影响因子:
4.4
作者:
K. Gokhberg;V. Averbukh;L. Cederbaum
通讯作者:
L. Cederbaum
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
A. Sauerwald;T. Kümmell;G. Bacher;A. Somers;R. Schwertberger;J. Reithmaier;A. Forchel
通讯作者:
A. Forchel
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
A. Zunger
通讯作者:
A. Zunger