Open AccessWhite light emissions through down-conversion of rare-earth doped LaF3nanoparticles
Author(s) -
Jeffrey R. DiMaio,
Baris Kokuoz,
John Ballato
Publication year - 2006
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.011412
Subject(s) - materials science , phosphor , nanoparticle , doping , excitation , white light , optics , wavelength , ion , optoelectronics , energy transfer , atomic physics , nanotechnology , chemistry , physics , quantum mechanics , organic chemistry
Through the use of complex core-shell structures, white light emissions are observed from a single nanoparticle doped with multiple trivalent rare-earth ions. The internal structuring of the nanoparticle to allow for a controlled degree of energy transfer a common excitation wavelength yielding the white light emission is obtained. Emissions with correlated color temperatures ranging from 2700K to 5000K were produced. The stability of the phosphors to excitation wavelength variations was examined.