期刊論文
| 學年 | 92 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2003-08-22 |
| 作品名稱 | Cation substitution effects on structural, electronic and optical properties of nonlinear optical AgGa(SxSe1-x)2 crystals |
| 作品名稱（其他語言） | |
| 著者 | Tang, L. C.; 李明憲; Lee, M. H.; Yang, C. H.; Huang, J. Y.; Chang, C. S. |
| 單位 | 淡江大學物理學系 |
| 出版者 | Institute of Physics (IOP) |
| 著錄名稱、卷期、頁數 | Journal of Physics: Condensed Matter 15(35), pp.6043-6055 |
| 摘要 | The structural, electronic and optical properties of tetragonal nonlinear optical (NLO) crystals, AgGa(SxSe1−x)2 (x = 0.0, 0.25, 0.5, 0.75, and 1.0), were investigated theoretically and experimentally. The results obtained indicated that the electronic bandgaps, optical properties and bulk moduli of these compounds were linearly dependent on the substitution concentration of cations. From partial density of state analysis, it was found that the electronic states near the band edges of AgGa(SxSe1−x)2 were a simple proportional mixture of the atomic orbitals of sulfur and selenium. A cell-volume effect was proposed as the major cause of the linear dependence of material properties on the substitution concentration. It was calculated that the second-order NLO susceptibilities were scaled with the cubic power of bandgap, although a minor deviation existed. This deviation arose from the optical transition moment products. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 0953-8984 |
| 期刊性質 | 國外 |
| 收錄於 | |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | GBR |
| 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/987654321/27627 ) |