The dielectric function of PbS quantum dots in a glass matrix

被引：44

作者：

Moreels, Iwan ^{[1
]}

Kruschke, Detlef ^{[2
]}

Glas, Peter ^{[3
]}

Tomm, Jens W. ^{[4
]}

机构：

[1] Ist Italiano Tecnol, I-16163 Genoa, Italy

[2] Inst Angew Photon eV, D-12489 Berlin, Germany

[3] Inst Sci Instruments GmbH, D-12489 Berlin, Germany

[4] Max Born Inst Nichtlineare Opt & Kurzpulsspektros, D-12489 Berlin, Germany

来源：

OPTICAL MATERIALS EXPRESS | 2012年 / 2卷 / 05期

关键词：

Sulfur compounds - Nanocrystals - Iterative methods - IV-VI semiconductors - Lead compounds - Semiconductor quantum dots;

D O I：

10.1364/OME.2.000496

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dielectric function of PbS quantum dots (Qdots) with diameters of 3.5-5.0 nm in glass matrix is determined from transmission measurements by Maxwell-Garnett effective medium theory combined with iterative Kramers-Kronig analysis. The algorithm used provides real and imaginary part of the dielectric function in the 200-1800 nm spectral range, for both Qdot-doped glasses as well as the PbS Qdots alone. The latter data are compared with the results obtained from colloidal PbS quantum dots and, within the limits of the experimental error, agreement is found. (C) 2012 Optical Society of America

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页码：496 / 500

页数：5

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