Surfactant-Assisted Growth of Novel PbS Dendritic Nanostructures via Facile Hydrothermal Process


  • We express our appreciation to the institute of nanotechnology for access to the electron microscope facilities. This study was partly supported by the Guangdong Province Project (No. 3040302).


3D PbS dendritic nanostructures (see Figure) have been fabricated by a facile hydrothermal method in the presence of N-cetyl-N,N,N-trimethyl-ammonium bromide (CTAB). Both CTAB and thiourea play important roles in the formation of well-defined PbS dendrites. X-ray diffraction, electron diffraction, and high-resolution transmission electron microscopy results show that the PbS nanostructure is a 3D dendrite of a single crystal.