Novel red-emitting Lu3Te2Li3O12: Eu3+ phosphor with high color purity for n-UV WLEDs
| Autor: | Qu Mingyang, Zhang Xiyan, Mi Xiaoyun, Liu Quansheng, Xu Shaoqiu |
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| Jazyk: | English<br />French |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | E3S Web of Conferences, Vol 185, p 04044 (2020) |
| Druh dokumentu: | article |
| ISSN: | 2267-1242 20201850 |
| DOI: | 10.1051/e3sconf/202018504044 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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