| 标题 |
 Influence of the Sc cation substituent on the structural properties and energy transfer processes in GAGG:Ce crystals Sc阳离子取代基对GAGG：Ce晶体结构性能和能量转移过程的影响
相关领域
取代基
材料科学
结晶学
能量转移
晶体结构
传输（计算）
化学
立体化学
化学物理
计算机科学
并行计算
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| 网址 | |
| DOI | |
| 其它 | The influence of the Sc cation substituent on the structural and luminescence properties of GAGG:Ce crystals was studied. Unit cell parameters and space groups were obtained using XRD analysis. The chemical compositions of the crystals were determined using SEM-EDX and TEM-EDX techniques. Structures were refined by the Rietveld method and the distribution of Al/Ga/Sc cations between octahedral and tetrahedral sites was obtained. The influence of Sc on the electronic band structure and the energy of the 4f and 5d Ce3+ levels is shown. The modification of the band structure induced by the Sc electronic states results in the suppression of Gd emission and enhancement of Ce3+ emission at low temperatures. The Ce3+ emission decay is accelerated under high-energy excitation of the Sc-containing GAGG compound. |
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