Nanocrystalline PbSe was synthesized via a sonochemical reaction of Pb(NO3)
(2) with elemental Se in ethylenediamine under ambient conditions. The samp
le was characterized by X-ray powder diffraction (XRD), transmission electr
on microscope (TEM) and elemental analysis. XRD patterns showed that phase-
pure PbSe was produced. The PbSe particles were spherical and about 30 nm i
n size as indicated by TEM observations. The influence of ultrasound and so
lvent was also discussed. (C) 1999 Elsevier Science S.A. All rights reserve
d.