期刊論文
| 學年 | 109 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2020-12-01 |
| 作品名稱 | Synthesis of G-La2Si2O7:Eu2+ phosphors by addition of AlF3: Experimental and theoretical analysis |
| 作品名稱（其他語言） | |
| 著者 | Zhan Li; Wei-Wei Ji; Lu-Yuan Hao; Liang-Jun Yin; Xin Xu; Simeon Agathopoulos; Ming-Hsien Lee |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Journal of Alloys and Compounds 844(5), 156127 |
| 摘要 | The Eu2+-doped G-La2Si2O7 phosphor was successfully prepared through the high-temperature solid-state reaction method with the aid of AlF3 flux. The results of Eu L3-edge XANES characterization showed that only Eu3+ can be detected in as-received G-La2Si2O7 phosphor and that Al2O3 addition leads to a partial reduction of Eu3+ to Eu2+, while complete reduction occurs with AlF3 addition. The obtained Eu2+-doped G-La2Si2O7 phosphor exhibited typical Eu2+ blue-green emission under the near-UV light excitation. The analysis of Fourier transform infrared spectroscopy (FT-IR) and 27Al nuclear magnetic resonance (NMR) results suggests that Al occupies the Si sites and F occupies the O sites. The positive influence of Al–F doping is related to the structure of the produced phosphors, which was analyzed with the aid of first-principles density functional calculations. The results of the theoretical calculations are a good match to the experimental findings. |
| 關鍵字 | Phosphor;G-La2Si2O7:Eu2+;Photoluminescence;AlF3 doping |
| 語言 | en |
| ISSN | 1873-4669 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 是 |
| 國別 | CHE |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/120778 ) |