Polarization of the photoluminescence of quantum dots incorporated into quantum wires

被引：0

作者：

Platonov, A. V. ^{[1
]}

Kochereshko, V. P. ^{[1
,2
]}

Kats, V. N. ^{[1
]}

Cirlin, G. E. ^{[1
]}

Bouravleuv, A. D. ^{[1
]}

Avdoshina, D. V. ^{[1
]}

Delga, A. ^{[3
,4
]}

Besombes, L. ^{[3
,4
]}

Mariette, H. ^{[3
,4
]}

机构：

[1] Russian Acad Sci, Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[2] St Petersburg State Univ, St Petersburg 199034, Russia

[3] CEA, INAC, SP2M, CEA CNRS Grp Nanophys & Semicond, F-38054 Grenoble, France

[4] Inst Neel, F-38054 Grenoble, France

来源：

SEMICONDUCTORS | 2016年 / 50卷 / 12期

基金：

俄罗斯基础研究基金会;

关键词：

ANISOTROPY;

D O I：

10.1134/S1063782616120150

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The photoluminescence spectra of individual quantum dots incorporated into a quantum wire are studied. From the behavior of the spectra in a magnetic field, it is possible to estimate the exciton binding energy in a quantum dot incorporated into a quantum wire. It is found that the exciton photoluminescence signal emitted from a quantum dot along the direction of the nanowire axis is linearly polarized. At the same time, the photoluminescence signal propagating in the direction orthogonal to the nanowire axis is practically unpolarized. The experimentally observed effect is attributed to the nonaxial arrangement of the dot in the wire under conditions of a huge increase in the exciton binding energy due to the effect of the image potential on the exciton.

引用

页码：1647 / 1650

页数：4

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