Optical properties of selenium nanoparticles dispersed in polymer

被引：65

作者：

Rajalakshmi, M ^{[1
]}

Arora, AK ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Div Mat Sci, Kalpakkam 603102, Tamil Nadu, India

来源：

SOLID STATE COMMUNICATIONS | 1999年 / 110卷 / 02期

关键词：

nanostructures; semiconductors; optical properties; luminescence;

D O I：

10.1016/S0038-1098(99)00055-1

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Nanoparticles of indirect gap semiconductor selenium dispersed in a polymer host are synthesized by the precipitation in a viscous polymer solution and by subsequent evaporation of the solvent. Optical absorption and photoluminescence investigations are carried out on this system. Present investigations show a blue shift of the interband transition energies suggesting confinement of charge carriers within the nanoparticles. The particle size is estimated to be 43 Angstrom. The enhancement factor of the radiative recombination rate relative to that of a bulk monoclinic-Se film is estimated to be of the order of 6. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：75 / 80

页数：6

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