Structural and optical characterization of Eu3+/CdSe nanocrystal containing silica glass

被引：27

作者：

Jose, G

Amrutha, KA

Toney, TF

Thomas, V

Joseph, C

Ittyachen, MA

Unnikrishnan, NV

机构：

[1] Mahatma Gandhi Univ, Sch Pure & Appl Phys, Kottayam 686560, India

[2] Cochin Univ Sci & Technol, Dept Instrumentat, Cochin 22 7, Kerala, India

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2006年 / 96卷 / 2-3期

关键词：

amorphous materials; rare earth doped silica glasses; nanocrystals; semiconductors; sol-gel process;

D O I：

10.1016/j.matchemphys.2005.07.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structural and optical properties of Eu3+/CdSe nanocrystal in silica galss are presented. The presence of Use nanocrystals was confirmed using elctron diffraction studies. The nanocrystal size was determined from TEM micrographs. The phonon sideband spectrum (PSB) associated with the excitation transition F-7(0)-D-5(2) is used to determine the electron-phonon coupling constant and non-radiative deexcitation rate of the rare earth ions. The Si-O-Si vibrational energy obtained from the PSB spectrum is found to correlate with the FT-IR spectrum. (c) 2005 Elsevier B.V. All rights reserved.

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收藏

页码：381 / 387

页数：7

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