RT Journal Article
T1 The controlled transition-metal doping of SnO_2 nanoparticles with tunable luminescence
A1 Peche Herrero, M. A.
A1 Maestre Varea, David
A1 Ramirez Castellanos, J.
A1 Cremades Rodríguez, Ana Isabel
A1 Piqueras de Noriega, Javier
A1 González Calvet, J. M.
AB SnO_2 nanoparticles doped with transition metals (V, Cr, Mn) have been synthesized by both the hydrothermal method (HDT) in a basic media and the liquid mixed method (LQM) based on the Pechini method. Nanocrystalline particles obtained via a liquid mixed technique show a well-defined chemical composition and an average size of 6 nm, with a high degree of both crystallinity and chemical homogeneity. Nanoparticles prepared via a hydrothermal method exhibit a high dispersion in size as well as agglomeration effects. As the LQM demonstrates advantages with respect to the HDT, a more detailed investigation has been carried out on the SnO_2 nanoparticles doped with V, Cr and Mn grown by this method. The microstructure of the materials was elucidated by means of X-ray Diffraction (XRD), Selected-Area Electron Diffraction (SAED), and High-Resolution Transmission Electron Microscopy (HRTEM). Luminescence from undoped and doped SnO_2 nanoparticles was characterized by cathodoluminescence (CL). The luminescence studies demonstrate a strong dependence of CL signals with transition metal doping, thus inducing red, green or orange emissions when doping with Cr, V or Mn respectively.
PB RSC Royal Society of Chemistry
SN 1466-8033
YR 2014
FD 2014
LK https://hdl.handle.net/20.500.14352/33550
UL https://hdl.handle.net/20.500.14352/33550
NO © RSC Royal Society of Chemistry.This work was supported by MEC (MAT2012-39159 and Consolider CSD 2009-00013). The authors are grateful to the National Centre for Electron Microscopy (CNME) at Universidad Complutense de Madrid.
NO MEC
DS Docta Complutense
RD 2 may 2024