Lanthanide-Ion-Doping Effect on the Morphology and the Structure of NaYF 4 :Ln 3+ Nanoparticles.

Autor: Bogachev NA; Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia., Betina AA; Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia., Bulatova TS; Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia., Nosov VG; Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia., Kolesnik SS; Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia., Tumkin II; Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia., Ryazantsev MN; Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia.; Nanotechnology Research and Education Centre RAS, Saint Petersburg Academic University, 8/3 Khlopina Street, 194021 St. Petersburg, Russia., Skripkin MY; Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia., Mereshchenko AS; Saint-Petersburg State University, 7/9 Universitetskaya emb., 199034 St. Petersburg, Russia.
Jazyk: angličtina
Zdroj: Nanomaterials (Basel, Switzerland) [Nanomaterials (Basel)] 2022 Aug 27; Vol. 12 (17). Date of Electronic Publication: 2022 Aug 27.
DOI: 10.3390/nano12172972
Abstrakt: Two series of β-NaYF 4 :Ln 3+ nanoparticles (Ln = La-Nd, Sm-Lu) containing 20 at. % and 40 at. % of Ln 3+ with well-defined morphology and size were synthesized via a facile citric-acid-assisted hydrothermal method using rare-earth chlorides as the precursors. The materials were composed from the particles that have a shape of uniform hexagonal prisms with an approximate size of 80-1100 nm. The mean diameter of NaYF 4 :Ln 3+ crystals non-monotonically depended on the lanthanide atomic number and the minimum size was observed for Gd 3+ -doped materials. At the same time, the unit cell parameters decreased from La to Lu according to XRD data analysis. The diameter-to-length ratio increased from La to Lu in both studied series. The effect of the doping lanthanide(III) ion nature on particle size and shape was explained in terms of crystal growth dynamics. This study reports the correlation between the nanoparticle morphologies and the type and content of doping lanthanide ions. The obtained results shed light on the understanding of intrinsic factors' effect on structural features of the nanocrystalline materials.
Databáze: MEDLINE
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