A general in situ hydrothermal rolling-up formation of one-dimensional, single-crystalline lead telluride nanostructures

Small. 2005 Mar;1(3):349-54. doi: 10.1002/smll.200400062.

Abstract

In this study we demonstrate that one-dimensional (1D) nanostructured lead telluride (PbTe) can be synthesized in a hydrothermal reaction between lead foil and tellurium powder. The resulting materials were characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The formation of the 1D structure can be explained by an in situ hydrothermal rolling-up mechanism whereby PbTe is formed hydrothermally and deposited on the lead substrate. The lead underneath the PbTe layer is then selectively etched by a cetyltrimethylammonium bromide solution, thus allowing the PbTe to roll up into 1D structures. This method can be extended to prepare other 1D tellurides, including CdTe, Cu(2)Te, and Ag(2)Te.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cetrimonium
  • Cetrimonium Compounds / chemistry
  • Crystallization
  • Lead / chemistry*
  • Metal Nanoparticles / chemistry*
  • Microscopy, Electron, Scanning
  • Microscopy, Electron, Transmission
  • Models, Chemical
  • Nanostructures / chemistry*
  • Nanotechnology / instrumentation*
  • Nanotechnology / methods*
  • Pressure
  • Tellurium / chemistry*
  • Temperature
  • X-Ray Diffraction

Substances

  • Cetrimonium Compounds
  • Lead
  • Tellurium
  • Cetrimonium