Tm3+-Dy3+-Eu3+ tri-doped transparent glass-ceramics containing NaY(MoO4)2 crystal phase: Preparation, energy transfer, warm white light emitting
作者： Tong Wang , Siying Wang , Hongbo Zhang , Xiangyu Zou , Weihua Hu
DOI: 10.1016/J.OPTMAT.2020.109851
关键词:
摘要: Abstract Tm3+-Dy3+ co-doped and Tm3+-Dy3+-Eu3+ tri-doped glass-ceramics (dGCs) containing NaY(MoO4)2 crystal phase were prepared. The of the GCs was determined to be by XRD, optimal heat treatment condition 670 °C/2.5 h DSC, SEM, transmittance curves. Under 362 nm light excitation, chromaticity coordinates tuned from blue white region adjusting Dy3+ concentration. energy transfer (ET) mechanism Tm3+ a dipole-dipole interaction, ET efficiency as high 56.3% when concentration 1.1%. When exceeds 1.1%, quenching caused interaction between nearest-neighbor ions can observed. With addition Eu3+, shifted cool warm region. These expected used in LEDs.
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