Facile solvothermal preparation and photoluminescence properties of PbS, PbSe nanocrystals and PbS/PbSe alloyed heterostructures on lead substrates

被引：7
|
作者：
Xu, Yanyan [1 ]
Sun, Wendong [1 ]
Liu, Chengzhan [1 ]
Chu, Ying [1 ]
机构：
[1] NE Normal Univ, Fac Chem, Changchun 130024, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2014年 / 50卷
关键词：
Chemical synthesis; Electron microscopy; X-ray diffraction; Optical properties; OPTICAL-PROPERTIES; QUANTUM DOTS; NANOWIRES; CORE; GROWTH; ARRAYS; NANOSTRUCTURES; NANOPARTICLES; EVOLUTION; NETWORKS;
D O I：
10.1016/j.materresbull.2013.09.047
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The semiconductor PbS polyhedral nanoparticle, synapticula-like PbSe nanorods and PbS/PbSe nanocomposites have been achieved on lead substrates via a one-pot solution method. The lead foil acts not only as the carrier of products, but also as a source of lead. The surfactant of polyvinylpyrrolidone played a crucial role to achieve well-dispersed and uniform products. The EDS analysis and elemental mappings confirmed that all of the elements (S, Se and Pb) were homogeneously distributed throughout the compound samples, and the two components are doped with each other, formed alloyed-type heterostructures. The photoluminescence measurement showed that the three kinds of products possessed unitary blue light emission properties, and the emission peak intensity of PbSe could be improved by doping PbS. (C) 2013 Elsevier Ltd. All rights reserved.
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页码：1 / 6
页数：6
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