Table of Contents
Journal of Nanoscience
Volume 2015, Article ID 362023, 9 pages
Research Article

A Simple and Facile Solvothermal Synthesis of Hierarchical PbS Microstars with Multidendritic Arms and Their Optical Properties

1College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China
2School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
3College of Geography and Environmental Science, Zhejiang Normal University, Jinhua 321004, China

Received 3 October 2014; Revised 31 January 2015; Accepted 31 January 2015

Academic Editor: Oleg Lupan

Copyright © 2015 Yong-Fang Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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.