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| Luminescence Characteristics of Ce3+/Tb3+/Eu3+ tri-doped Gadolinium Borosilicon Glasses for W-LED |
| HU Guangxu*, YAO Jie, QU Yuanyuan, HAN Yunhua, HUO Ying
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| Engineering Training Center, Jilin Institute of Chemical Technology, Jilin City132022, China |
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Abstract B2O3-SiO2-Gd2O3-Al2O3-Na2O of substrate composition, preparation of high temperature sintering way the Ce3+/Tb3+/Eu3+ three doped luminescence glass. The optical properties of Ce3+/Tb3+/Eu3+ co doped gadolinium borosilicate glass were analyzed through excitation emission spectroscopy, chroma analysis (CIE) etc. According to the spectral analysis, when the concentration of Eu2O3 is 0.9 mol%, the luminous intensity of Eu3+ reaches the maximum, the concentration continues to increase, the luminous intensity of Eu3+ decreases, and the concentration quenching may occur. The energy transfer phenomena of Ce3+→Tb3+ and Tb3+→Eu3+ were analyzed by emission spectra and fluorescence lifetime. When the doped concentration ratio of Ce3+/Tb3+/Eu3+ is adjusted to 0.6 mol%, 0.45 mol% and 0.9 mol%, and excited at 378nm, the CIE display coordinate point is (0.3376, 0.3287), approximate white light emission effect.
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Published: 25 May 2024
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