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A novel n-UV convertible colour-tunable emitting oxynitride phosphor: Realization based on Ce3+-Tb3+ energy transfer |
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| Authors: | Huanhuan You Xiaoyu Huang Xingda Zhang Piaopiao Jin Zhaopeng Xu Jing Zhai Faming Gao Yongchao Jia |
| Affiliation: | 1. Hebei Key Laboratory of Applied Chemistry, Yanshan University, Hebei Street 438, Qinhuangdao, China Contribution: Conceptualization, Data curation, Formal analysis, Methodology, Writing - original draft;2. Hebei Key Laboratory of Applied Chemistry, Yanshan University, Hebei Street 438, Qinhuangdao, China Contribution: Data curation, Writing - review & editing;3. Hebei Key Laboratory of Applied Chemistry, Yanshan University, Hebei Street 438, Qinhuangdao, China Contribution: Writing - original draft;4. The Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, School of Information Science and Engineering, Yanshan University, Qinhuangdao, China Contribution: Funding acquisition, Writing - review & editing;5. Hebei Key Laboratory of Applied Chemistry, Yanshan University, Hebei Street 438, Qinhuangdao, China Contribution: Methodology, Writing - review & editing;6. Hebei Key Laboratory of Applied Chemistry, Yanshan University, Hebei Street 438, Qinhuangdao, China |
| Abstract: | In the present work, a novel n-UV convertible colour-tunable emitting phosphor was obtained based on the efficient Ce3+-Tb3+ energy transfer in the Y10Al2Si3O18N4 host. By properly controlling the ratio of Ce3+/Tb3+, the colour hue of the obtained powder covered the blue and green regions, under excitation of 365 nm. The steady-state and dynamic-state luminescence measurement was performed to shed light on the related mechanism, which was justified by the electronic dipole–quadrupole dominating the related energy transfer process. Preliminary studies showed that Y10Al2Si3O18N4:Ce3+,Tb3+ can be promising as an inorganic phosphor for white LED applications. |
| Keywords: | energy transfer oxynitride phosphor white LEDs |