| Issue |
E3S Web Conf.
Volume 185, 2020
2020 International Conference on Energy, Environment and Bioengineering (ICEEB 2020)
|
|
|---|---|---|
| Article Number | 04044 | |
| Number of page(s) | 4 | |
| Section | Chemical Engineering and Food Biotechnology | |
| DOI | https://doi.org/10.1051/e3sconf/202018504044 | |
| Published online | 01 September 2020 | |
Novel red-emitting Lu3Te2Li3O12: Eu3+ phosphor with high color purity for n-UV WLEDs
1 Country School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China
2 2Research Center for Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China
* Corresponding author: zhangxiyan@cust.edu.cn
In this work, a series of red emitting Lu3Te2Li3O12: Eu3+ phosphors were synthesized for the first time by high temperature solid state reaction. The structure was characterized by X-ray diffraction. The excitation spectra, emission spectra and CIE chromaticity coordinate were studied. The phosphors show strong red emission at 611 nm due to the 5D0-7F2 transition of Eu3+ ions. The optimal doping concentration of Eu3+ in LTL host is x = 0.5 due to the concentration quenching mechanism of dipole-dipole interaction. The CIE chromaticity coordinates of the LTL: 0.5Eu3++ phosphor is (0.644,0.355), and the purity of the color is up to 93.61%. The phosphor can be considered as a potential red-emitting candidate for near UV WLEDs.
© The Authors, published by EDP Sciences, 2020
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