Open AccessA Simple and Facile Solvothermal Synthesis of Hierarchical PbS Microstars with Multidendritic Arms and Their Optical Properties
Author(s) -
Yongfang Li,
Ming Zhang,
Qi-Jing Yang,
Fengxian Zhang,
Meiqi Zheng,
AiJun Wang
Publication year - 2015
Publication title -
journal of nanoscience
Language(s) - English
Resource type - Journals
eISSN - 2356-749X
pISSN - 2314-6931
DOI - 10.1155/2015/362023
Subject(s) - photoluminescence , materials science , scanning electron microscope , fourier transform infrared spectroscopy , transmission electron microscopy , electroluminescence , solvothermal synthesis , chemical engineering , nanotechnology , spectroscopy , diffraction , optoelectronics , analytical chemistry (journal) , optics , chemistry , composite material , organic chemistry , physics , layer (electronics) , quantum mechanics , engineering
A simple and facile approach was developed in the solvothermal synthesis of hierarchical PbS microstars with multidendritic arms, which were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) and photoluminescence (PL) spectroscopy. The morphologies of PbS products were strongly determined by the reaction time and temperature, the ratios of the precursors, and the mixed solvent with various components, and thereby their possible formation mechanism was discussed in some detail. The as-prepared PbS crystals displayed a sharp and strong photoluminescent peak at 437 nm at room temperature. It has potential and practical applications in photoluminescence, photovoltaics, IR photodetectors, electroluminescence, and solar absorbers
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