NOVEL, MICROWAVE ASSISTED ROUTE OF SYNTHESIS OF BINARY OXIDE SEMICONDUCTING PHASES - PbMoO4 AND PbWO4

被引：16
|
作者：
Kwolek, P. [1 ]
Tokarski, T. [1 ]
Lokcik, T. [1 ]
Szacilowski, K. [1 ,2 ]
机构：
[1] AGH Univ Sci & Technol, Fac Nonferrous Met, PL-30059 Krakow, Poland
[2] Jagiellonian Univ, Fac Chem, PL-30060 Krakow, Poland
来源：
ARCHIVES OF METALLURGY AND MATERIALS | 2013年 / 58卷 / 01期
关键词：
lead molybdate; lead tungstate; semiconductor; band gap; microwave assisted synthesis; LEAD MOLYBDATE; CRYSTAL-GROWTH; TUNGSTATE; SCINTILLATORS;
D O I：
10.2478/v10172-012-0176-3
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Highly crystalline powders of lead molybdate and tungstate were synthesized by a microwave assisted hydrothermal process in a microwave heated high pressure autoclave. Application of this novel and environmentally friendly technique in the synthesis of these compounds has never been reported before. The influence of a time of synthesis on a crystal structure, morphology and a value of a band gap for both PbMoO4 and PbWO4 was examined. The value of the band gap was determined using diffuse reflectance spectroscopy. For lead molybdate the medium value of the band gap equals to ca. 3.2 eV whereas for lead tungstate it oscillates around 4 eV and does not depend on the duration time of the synthesis.
引用
收藏
页码：217 / 222
页数：6
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