Abstract
A simple and efficient method for the synthesis of water-soluble NdF3 and
NdF<sub>3</sub>:Ba<sup>2+</sup> nanocrystals under hydrothermal conditions is established. The method
involves the coating of the nanocrystals with a layer of hydrophilic polymer
polyvinylpyrrolidone (PVP). The as-prepared products are characterized by powder
X-ray diffraction, field emission scanning electronic microscopy, Fourier transform
infrared spectroscopy, and photoluminescence spectroscopy. The PVP coating
transforms the nanocrystals into a biocompatible material and improves the
fluorescence intensity of NdF<sub>3</sub> in the near infrared (NIR) region. The morphology of
the nanoparticles changes, whereas the fluorescence intensity of NdF<sub>3</sub> in the NIR
region increases when a small amount of Ba<sup>2+</sup> is doped into the NdF<sub>3</sub>/PVP
nanoparticles.
© 2012 Chinese Optics Letters
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription