A photoluminescence study in PbS-EuS superlattices

被引：12

作者：

Kowalczyk, L

Sadowski, J

Galazka, RR

Stachow-Wojcik, A

Sipatov, AY

Volobuev, VV

Smirnov, VA

Dugaev, VK

机构：

[1] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

[2] Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland

[3] Kharkov State Tech Univ, Kharkov, Ukraine

[4] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[5] Ukrainian Acad Sci, Inst Mat Sci Problems, Chernovtsy, Ukraine

来源：

ACTA PHYSICA POLONICA A | 1998年 / 94卷 / 03期

关键词：

D O I：

10.12693/APhysPolA.94.397

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Investigations of the photoluminescence of PbS-EuS superlattices deposited on (111)BaF2 substrates are presented. Quantum-size and deformation effects in photoluminescence spectra are observed. The strain-induced gap shift and valence-band offset is determined from experimental results. A strong stimulated photoluminescence with relatively low threshold was observed. It was found that the photocarriers generated in EuS barrier strongly affect the population of PbS subbands.

引用

页码：397 / 400

页数：4