Surface Characterization and Photoluminescence Properties of Ce3+, Eu Co-Doped SrF2 Nanophosphor

被引：24

作者：

Yagoub, Mubarak Y. A. ^{[1
,2
]}

Swart, Hendrik C. ^{[1
]}

Noto, Luyanda L. ^{[1
]}

Bergman, Peber ^{[3
]}

Coetsee, Elizabeth ^{[1
]}

机构：

[1] Univ Orange Free State, Dept Phys, ZA-9300 Bloemfontein, South Africa

[2] Sudan Univ Sci & Technol, Dept Phys, Khartoum 11113, Sudan

[3] Linkoping Univ, Dept Phys Chem & Biol, S-58183 Linkoping, Sweden

来源：

MATERIALS | 2015年 / 8卷 / 05期

基金：

新加坡国家研究基金会;

关键词：

SrF2; cerium; TOF-SIMS; XPS; shake-down; energy transfer; LUMINESCENT PROPERTIES; ENERGY; IONS; NANOCRYSTALS; MECHANISM; CRYSTALS; LAF3; XPS; TB;

D O I：

10.3390/ma8052361

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

SrF2:Eu,Ce3+ nanophosphors were successfully synthesized by the hydrothermal method during down-shifting investigations for solar cell applications. The phosphors were characterized by X-ray diffraction (XRD), scanning Auger nanoprobe, time of flight-secondary ion mass spectrometry (TOF-SIMS), X-ray photoelectron spectroscopy (XPS) and photoluminescence (PL) spectroscopy. XRD showed that the crystallite size calculated with Scherrer's equation was in the nanometre scale. XPS confirmed the formation of the matrix and the presence of the dopants in the SrF2 host. The PL of the nanophosphor samples were studied using different excitation sources. The phenomenon of energy transfer from Ce3+ to Eu2+ has been demonstrated.

引用

页码：2361 / 2375

页数：15

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