Open AccessSTUDY OF ENERGY-TRANSFER INTERACTIONS BETWEEN Eu3+ IONS IN Y2O3 NANOCRYSTALS
Author(s) -
Dan Li,
LU Shaozhe,
Baojiu Chen,
HaiYu Wang,
Bo Tang,
Jiahua Zhang,
Shangguo Hou,
Shihua Huang
Publication year - 2001
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.50.933
Subject(s) - luminescence , nanocrystal , quenching (fluorescence) , materials science , energy transfer , ion , energy exchange , exchange interaction , atomic physics , photoluminescence , chemical physics , molecular physics , nanotechnology , condensed matter physics , physics , fluorescence , optoelectronics , optics , quantum mechanics , atmospheric sciences , ferromagnetism
The exchange interaction is considered to play the dominant role in the quenching of 5D0—7F2 emission of Eu3+ in Y2O3 nanocrystals.Luminescence decay curves of 5D0-7F2 of Eu3+ in two sizes of nanocrystals were measured.We fit the luminescence decay curve by the Inokuti-Hirayama theory.The efficiencies of energy transfer of exchange interaction were calculated.The difference between theoretical and experimental curves of efficiency was analyzed.