Open AccessEffect of Ce3+ Co-doping on GdPO4:Tb3+ Nanoparticles: Photoluminescence and Energy Transfer Studies
Author(s) -
N. Yaiphaba
Publication year - 2021
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2021.23106
Subject(s) - photoluminescence , chemistry , activator (genetics) , monoclinic crystal system , luminescence , doping , energy transfer , crystallite , ethylene glycol , nanoparticle , photochemistry , analytical chemistry (journal) , nanotechnology , crystallography , crystal structure , materials science , organic chemistry , optoelectronics , chemical physics , biochemistry , gene
Low temperature synthesis of Tb3+-doped GdPO4 nanoparticles sensitized with Ce3+ (Ce3+ = 0, 3, 5, 7and 10 at.%) have been reported. Ethylene glycol was used as capping agent as well as reactionmedium at 160 ºC. The as-prepared particles crystallized in a monoclinic structure with an averagecrystallite size of 25-46 nm. From the photoluminescence study, enhanced emission of Tb3+ withco-doping of Ce3+ was attributed to efficient energy transfer from the sensitizer to activator. Theluminescence emission intensity increases upto 5 at.% of Ce3+ and then decreases. Less efficient energytransfer from sensitizer to the activator with increasing concentration of sensitizer may be attributed tocritical concentration of Ce3+ with the host or dipole-quadrupole interaction amongst the Ce3+ ions.Moreover, presence of -OH group in the samples will make them a potential target for biologicallabeling and optical devices.