首页|A porous Eu-PTA/Tb-SSA/ZrO2/ZnZrO3 light color adjustable phosphor:Luminescent property and application of warm white LED

A porous Eu-PTA/Tb-SSA/ZrO2/ZnZrO3 light color adjustable phosphor:Luminescent property and application of warm white LED

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Light emitting diode(LED)is the fourth generation lighting source,but it has some shortcomings such as complex chip packaging process and the unbalanced light color of phosphor in long-time application.In this study,a kind of Eu-terephthalic acid/Tb-sulfosalicylate/ZrO2/ZnZrO3(Eu-PTA/Tb-SSA/ZrO2/ZnZrO3)phosphor with warm white light emission properties was prepared,and the warm white light LED(w-WLEDs)was successfully prepared by encapsulating Eu-PTA/Tb-SSA/ZrO2/ZnZrO3 phosphors together with 270 nm UV-chip.The ZrO2/ZnZrO3,Tb-SSA/ZrO2/ZnZrO3 and Eu-PTA/ZrO2/ZnZrO3 samples show blue emission,green emission and red emission under deep ultraviolet(UV,270 nm)excitation,respectively.The Tb-SSA and Eu-PTA are co-doped into ZrO2/ZnZrC3 matrix with blue emission to achieve the warm white light emission,and the light color can be adjusted by controlling the doping amount of Eu3+and Tb3+.Through the excitation method of single-component phosphor by the single chip,the complex chip packaging process of w-LED can be solved.By doping rare earth organic com-plexes into porous ZrO2/ZnZrO3 matrix,the problems of the light color unbalanced of phosphor and the low luminescence intensity of rare earth doped metal oxides composites can be solved.

Eu-PTA/Tb-SSA/ZrO2/ZnZrO3Luminescence materialLight color adjustable phosphorWarm white emissionW-WLEDsRare earths

Yunxiao Ma、Chao Linghu、Ming Yang、Hui Yu、Xiangting Dong、Long Xia

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School of Chemistry and Environmental Engineering,Changchun University of Science and Technology,Changchun,130022,China

School of Materials Science and Engineering,Harbin Institute of Technology(Weihai),Weihai,264209,China

National Natural Science Foundation of ChinaJilin Province Science and Technology Development Plan Project of China

5157203420220203168SF

2024

10.1016/j.jre.2023.07.009

稀土学报(英文版)
中国稀土学会

稀土学报(英文版)

CSTPCDEI
影响因子：1.3
ISSN：1002-0721
年,卷(期)：2024.42(8)