Experimental optimum design and luminescence properties of NaY(Gd)(MoO 4 ) 2 :Er 3+ phosphors
| Autor: | Baojiu Chen, Lin-Lin Shi, Sai Xu, Zi-Hui Zhai, Shu-Wei Li, Jiashi Sun |
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| Rok vydání: | 2016 |
| Předmět: |
Range (particle radiation)
Materials science Doping Analytical chemistry General Physics and Astronomy Phosphor 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences law.invention law 0103 physical sciences Calcination Photoluminescence excitation Emission spectrum 010306 general physics 0210 nano-technology Luminescence Intensity (heat transfer) |
| Zdroj: | Chinese Physics B. 25:063301 |
| ISSN: | 1674-1056 |
| DOI: | 10.1088/1674-1056/25/6/063301 |
| Popis: | Three-factor orthogonal design (OD) of Er3+/Gd3+/T (calcination temperature) is used to optimize the luminescent intensity of NaY(Gd)(MoO4)2:Er3+ phosphor. Firstly, the uniform design (UD) is introduced to explore the doping concentration range of Er3+/Gd3+. Then OD and range analysis are performed based on the results of UD to obtain the primary and secondary sequence and the best combination of Er3+, Gd3+, and T within the experimental range. The optimum sample is prepared by the high temperature solid state method. Photoluminescence excitation and emission spectra of the optimum sample are detected. The intense green emissions (530 nm and 550 nm) are observed which originate from Er3+ 2H11/2→ 4I15/2 and 4S3/2→4I15/2, respectively. Thermal effect is investigated in the optimum NaY(Gd3+)(MoO4)2:Er3+ phosphors, and the green emission intensity decreases as temperature increases. |
| Databáze: | OpenAIRE |
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