Structural and optical properties of terbium in TiO2 matrix

被引：7

作者：

Domaradzki, Jaroslaw ^{[1
]}

Prociow, Eugeniusz L. ^{[1
]}

Kaczmarek, Danuta ^{[1
]}

Borkowska, Agnieszka ^{[1
]}

Berlicki, Tadeusz ^{[1
]}

Prociow, Krystyna ^{[2
]}

机构：

[1] Wroclaw Univ Technol, Fac Microsyst Elect & Photon, PL-50372 Wroclaw, Poland

[2] Electrotech Inst, PL-50369 Wroclaw, Poland

来源：

OPTICAL MATERIALS | 2009年 / 31卷 / 09期

关键词：

Terbium; TiO2; Photoluminescence; Thin films; Magnetron sputtering; ENERGY-TRANSFER; NANOCRYSTALS;

D O I：

10.1016/j.optmat.2008.10.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

TiO2 thin films doped with different concentration of Tb have been prepared and study of terbium photoluminescence in TiO2 host has been presented. Thin films were deposited on silicon and SiO2 substrates by magnetron sputtering of Ti-Tb mosaic target in oxygen atmosphere. XRD examinations show nanocrystalline nature of prepared thin films with TiO2-anatase and -rutile phases depending on concentration of Tb. Optical transmission study has shown the red shift of the fundamental absorption edge of TiO2 with the increase of terbium content in the thin film. Also, the transparency decreased with increasing in amount of Tb. Photoluminescence (PL) spectra, measured upon UV excitation at 302 nm at room temperature, show a dominating green luminescence corresponding to D-5(4)-F-7(5) transition at 545 nm for TiO2-rutile thin film with 2.6 at.% of Tb. The superposition of PL peaks from Tb and TiO2 host matrix was also observed at 491 nm. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1349 / 1352

页数：4

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