Controlling the Luminescence of Quantum Dots in Hybrid Structures Based on Porous Silicon

被引：0

作者：

Kriukova, I. S. ^{[1
]}

Granizo, E. A. ^{[1
]}

Knysh, A. A. ^{[1
]}

Samokhvalov, P. S. ^{[1
]}

Nabiev, I. R. ^{[1
,2
]}

机构：

[1] Moscow Engn Phys Inst MEPhI Moscow Engn Phys Inst, Moscow 115409, Russia

[2] Univ Reims, F-51100 Reims, France

来源：

PHYSICS OF ATOMIC NUCLEI | 2024年 / 87卷 / 11期

基金：

俄罗斯科学基金会;

关键词：

photonic crystals; porous silicon; quantum dots; light-matter interaction; SPONTANEOUS-EMISSION;

D O I：

10.1134/S1063778824100259

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Resonant cavities based on porous silicon (pSi) are of interest as a basis for hybrid photoluminescent (PL) systems from the viewpoints of both fundamental and applied research. One of the most promising fluorophores for creating such hybrid systems is semiconductor quantum dots (QD), due to their narrow PL spectra and broad absorption spectra. Depending on the structure and parameters of a hybrid system, polariton states can be created and the PL properties of the embedded fluorophores can be modified. This work describes a 4.4-fold narrowing of the PL spectrum of CdSe/ZnS semiconductor quantum dots (core/shell) and a 3.7-fold acceleration of spontaneous emission in pSi microcavities, relative to similar parameters of QDs in a solution. The observed changes in the PL properties of QDs are attributed to the interaction of light and matter between the microcavity eigenmode and the QD excitons. The obtained results pave the way for developing new photonic and optoelectronic devices.

引用

页码：1750 / 1753

页数：4

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