INFLUENCE OF LONGITUDINAL AND LATERAL CONFINEMENTS ON EXCITONS IN CYLINDRICAL QUANTUM DOTS OF SEMICONDUCTORS

被引：126

作者：

LEGOFF, S ^{[1
]}

STEBE, B ^{[1
]}

机构：

[1] ECOLE SUPER ELECT, OPTOELECTRON & MICROELECTRON LAB, F-57078 METZ 3, FRANCE

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.47.1383

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ground-state energy of an exciton in a cylindrical quantum dot with finite potential barriers is calculated by the variation method within the envelope-function approximation. The computations are performed in the cases of infinite and finite band offsets. The limit of a strictly two-dimensional quantum disk is discussed. Our numerical results are particularized to the GaAs/Ga1-xAlxAs system with 0.10 less-than-or-equal-to x less-than-or-equal-to 0.30. In this case, the effect of the quantum confinement is the highest for dot dimensions near 50 angstrom.

引用

页码：1383 / 1391

页数：9

共 38 条

[1] Abramowitz M., 1970, HDB MATH FUNCTIONS
[2] PHOTOLUMINESCENCE OF OVERGROWN GAAS-GAALAS QUANTUM DOTS
ARNOT, HEG
WATT, M
SOTOMAYORTORRES, CM
GLEW, R
CUSCO, R
BATES, J
BEAUMONT, SP
[J]. SUPERLATTICES AND MICROSTRUCTURES, 1989, 5 (03) : 459 - 463
[3] EXCITON BINDING-ENERGIES AND ABSORPTION INTENSITIES IN QUANTUM DOTS
AUSTIN, EJ
[J]. SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1988, 3 (09) : 960 - 962
[4] INAS QUANTUM DOTS IN A SINGLE-CRYSTAL GAAS MATRIX
BRANDT, O
TAPFER, L
PLOOG, K
BIERWOLF, R
HOHENSTEIN, M
PHILLIPP, F
LAGE, H
HEBERLE, A
[J]. PHYSICAL REVIEW B, 1991, 44 (15) : 8043 - 8053
[5] ZERO-DIMENSIONAL EXCITONS IN SEMICONDUCTOR CLUSTERS
BRUS, L
[J]. IEEE JOURNAL OF QUANTUM ELECTRONICS, 1986, 22 (09) : 1909 - 1914
[6] QUANTUM CRYSTALLITES AND NONLINEAR OPTICS
BRUS, L
[J]. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1991, 53 (06): : 465 - 474
[7] ELECTRON ELECTRON AND ELECTRON-HOLE INTERACTIONS IN SMALL SEMICONDUCTOR CRYSTALLITES - THE SIZE DEPENDENCE OF THE LOWEST EXCITED ELECTRONIC STATE
BRUS, LE
[J]. JOURNAL OF CHEMICAL PHYSICS, 1984, 80 (09) : 4403 - 4409
[8] EXCITONS IN QUANTUM BOXES - CORRELATION-EFFECTS AND QUANTUM CONFINEMENT
BRYANT, GW
[J]. PHYSICAL REVIEW B, 1988, 37 (15): : 8763 - 8772
[9] ELECTRONIC-STRUCTURE OF ULTRASMALL QUANTUM-WELL BOXES
BRYANT, GW
[J]. PHYSICAL REVIEW LETTERS, 1987, 59 (10) : 1140 - 1143
[10] QUANTUM SIZE EFFECTS IN GAAS-GAALAS QUANTUM-WELL WIRES AND QUANTUM-WELL BOXES
CIBERT, J
PETROFF, PM
DOLAN, GJ
WERDER, DJ
PEARTON, SJ
GOSSARD, AC
ENGLISH, JH
[J]. SUPERLATTICES AND MICROSTRUCTURES, 1987, 3 (01) : 35 - 39

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