Chinese Optics Letters, Volume. 13, Issue 7, 071601(2015)
Luminescence of Tb3+/Eu3+ codoped LiYF4 single crystals under UV excitation for white-light LEDs
Figures & Tables(9)
Fig. 1. Powder XRD pattern of
Fig. 2. Absorption spectra of Samples T0 and TE0, and the un-doped crystals (marked a, b, and c, respectively).
Fig. 3. Emission spectra of Samples T0 and TE0 under 374 nm excitation.
Fig. 4. Excitation spectra of Sample TE0 monitored at 487, 542, and 611 nm wavelengths.
Fig. 5. Emission spectra of Sample TE0 under various excitation wavelengths (353, 362, 374, and 384 nm).
Fig. 6. Emission spectra of various
Fig. 7. CIE chromaticity coordinates diagram for Samples
Table 1. Concentrations of Tb3+ and Eu3+ Ions in LiYF4 Single Crystalsa
View tableView in ArticleTable 1. Concentrations of Tb3+ and Eu3+ Ions in LiYF4 Single Crystalsa
Symbols T0 TE0 TE1 TE2 TE3 TE4 Tb 0.85 0.84 0.95 1.10 1.11 1.11 Eu 0 0.60 0.60 0.61 0.75 0.90
Table 2. Luminous Parameters of Samples TEia
View tableView in ArticleTable 2. Luminous Parameters of Samples TEia
Luminous Parameters Samples (K) TE0 0.3130 0.3377 6441 76 75 TE1 0.3027 0.3480 6904 68 60 TE2 0.3051 0.3577 6713 64 66 TE3 0.3120 0.3555 6399 70 67 TE4 0.3242 0.3389 5878 77 75
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Yongzhang Jiang, Haiping Xia, Shuo Yang, Jiazhong Zhang, Dongsheng Jiang, Cheng Wang, Zhigang Feng, Jian Zhang, Xuemei Gu, Jianli Zhang, Haochuan Jiang, Baojiu Chen, "Luminescence of Tb3+/Eu3+ codoped LiYF4 single crystals under UV excitation for white-light LEDs," Chin.Opt.Lett. 13, 071601 (2015)
Paper Information
Category: Materials
Received: Jan. 7, 2015
Accepted: Apr. 29, 2015
Published Online: Sep. 14, 2018
The Author Email: Haiping Xia (hpxcm@nbu.edu.cn)
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