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YANYAN BU1, XIANGFU WANG2, XIAOHONG YAN2,*
Eu3+ Ho3+ doped TeO2GeO2Nb2O5Li2CO3 (glasses was fabricated by melt quenching and subsequent heating. Five emissions centered at 548 nm, 613 nm, 652 nm, 700 nm, and 755 nm are observed in the resulting TGN glass under 458 nm excitation, which corresponds to 5 S 25 F 45 I 8 , 5 D 07 F 2 , 5 D 07 F 3 , 5 D 07 F 4 , 5 S 25 F 4 5 I 7 transitions By adjusting concentration proportion of Ho3+ and Eu3+ ions, the c olor coordinate can be converted from green to yellow and eventually to red region. The luminescence decay curves evidenced that the energy transfer from Eu3+ to Ho3+ was responsible for color tunable emissions. The Eu3+ Ho3+ co doped TGN glasses could be potentially candidate for a white light emitting material under blue chip excitation..
Eu3+ ,Ho3+, Energy transfer, White-LED.
YANYAN BU, XIANGFU WANG, XIAOHONG YAN, Green yellow red tunable luminescence from Eu3+ Ho3+ doped TeO2GeO2Nb2O5 glass, Optoelectronics and Advanced Materials - Rapid Communications, 7, 5-6, May-June 2013, pp.325-328 (2013).
Submitted at: Jan. 26, 2013
Accepted at: June 12, 2013
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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