TRANSMISSION ELECTRON-MICROSCOPE INVESTIGATION OF CADMIUM-SULFIDE NANOPARTICLES GROWN UNDER LANGMUIR MONOLAYER

Study of the lattice structure of nanoparticles templated by surfactan t assemblies is of importance in the understanding of the templating m echanism and the properties of the particles. Here a transmission elec tron microscope (TEM) investigation on the lattice structure of cadmiu m sulfide nanoparticles grown under a stearic acid Langmuir monolayer is demonstrated. TEM study reveals that an isolated nanoparticle can o nly form a one-dimensional electron diffraction pattern. Therefore the atomic packing in the particles shows one-dimensional order. (C) 1998 Elsevier Science S.A. All rights reserved.