Heterometallic Na-Y(Ln) trifluoroacetate diglyme complexes as novel single-source precursors for upconverting NaYF4 nanocrystals co-doped with Yb and Er/Tm ionsElectronic supplementary information (ESI) available: Experimental, 1H NMR and IR spectra of precursors, TGA and IR of as-prepared NaY(Ln)F4 NCs, additional TEM images and excitation spectra of upconverting NCs. CCDC 751815. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/b921474g

We report synthesis of new single-source heterometallic precursors [NaLn(TFA) 4 (diglyme)] (Ln = Y, Er, Tm, Yb; TFA = trifluoroacetate), which decompose in 1-octadecene at significantly low temperature, without using any surfactant or capping reagent, to give sub-50 nm particles of cubic and/or hexa...

Full description

Saved in:
Bibliographic Details
Main Authors: Mishra, Shashank, Daniele, Stéphane, Ledoux, Gilles, Jeanneau, Erwann, Joubert, Marie-France
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report synthesis of new single-source heterometallic precursors [NaLn(TFA) 4 (diglyme)] (Ln = Y, Er, Tm, Yb; TFA = trifluoroacetate), which decompose in 1-octadecene at significantly low temperature, without using any surfactant or capping reagent, to give sub-50 nm particles of cubic and/or hexagonal NaYF 4  : Yb 3+ , Er 3+ /Tm 3+ materials forming well-dispersed colloidal solutions in dichloromethane and exhibiting green/blue upconversion luminescence. Novel anhydrous heterometallic precursors were used to obtain well-dispersed, upconverting NaYF 4 : Yb 3+ , Er 3+ /Tm 3+ nanocrystals at significantly low temperature and without using any surfactant or capping reagent.
ISSN:1359-7345
1364-548X
DOI:10.1039/b921474g