Antimony(III)-doped PbWO4 crystals with enhanced photoluminescence via a shape-controlled sonochemical route

被引：69

作者：

Geng, Jun

Lu, Dujuan

Zhu, Jun-Jie ^{[1
]}

Chen, Hong-Yuan

机构：

[1] Nanjing Univ, Sch Chem & Chem Engn, Key Lab Analyt Chem Life Sci, Nanjing 210093, Peoples R China

[2] Jiangsu Inst Educ, Dept Chem, Nanjing 210013, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2006年 / 110卷 / 28期

关键词：

D O I：

10.1021/jp057562v

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：

Sb(III)-doped lead tungstate single crystals with controlled shapes and enhanced green emission have been synthesized via a facile, Pluronic P123 (EO20PO70EO20)-assisted, sonochemical method. The surfactant Pluronic P123 was found to play a crucial role in the morphology control of the final products. The growth process was investigated by carefully following time-dependent experiments, and the oriented attachment process accompanying Ostwald ripening was proposed for the possible formation mechanism. The optical properties, such as the Raman spectra and PL spectra, of doped PbWO4 were studied. Room-temperature photoluminescence of doped PbWO4 samples with different morphologies at desired Sb doping concentrations showed greatly enhanced luminescence intensity compared to the undoped PbWO4.

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页码：13777 / 13785

页数：9

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