Nanocrystalline CePO(4):Tb as a novel oxygen sensing material on the basis of its redox responsive reversible luminescence.
This work reports for the first time on a new finding of luminescent CePO(4):Tb nanocrystals providing a novel oxygen sensing material on the basis of the redox responsive reversible luminescence in an oxidizing/reducing atmosphere. The origin of the luminescence quenching/recovery of nanocrystalline CePO(4):Tb was clearly demonstrated, from the surface chemistry of nanocrystals and the fluorescence decay dynamics of Tb(III). Our present work represents a preliminary demonstration of the feasibility of using nanocrystalline CePO(4):Tb as a novel oxygen sensing material since it yields several advantages including surfactant-free synthesis, dual detection functioning, rapid response, high sensitivity and good reproducibility.
Di
Weihua
W
Key Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, People's Republic of China. weihdi@yahoo.com.cn
Wang
Xiaojun
X
Ren
Xinguang
X
D002563:Cerium / Q000737:chemistry*; D049449:Luminescence; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry*; D010710:Phosphates / Q000737:chemistry*; D056951:Photoelectron Spectroscopy; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013725:Terbium / Q000737:chemistry*
D010710:Phosphates; D013725:Terbium; D002563:Cerium; D010100:Oxygen; C048083:cerium phosphate