Beryllium sites in MBE-grown BeZnO alloy films
文献类型：期刊论文
| 作者 | Ye, DQ ; Mei, ZX ; Liang, HL ; Liu, YL ; Azarov, A ; Kuznetsov, A ; Du, XL |
| 刊名 | JOURNAL OF PHYSICS D-APPLIED PHYSICS
 |
| 出版日期 | 2014 |
| 卷号 | 47期号:17 |
| 关键词 | BeZnO interstitial phase segregation x-ray photoelectron spectroscopy Raman molecular beam epitaxy time-of-flight elastic recoil detection analysis |
| ISSN号 | 0022-3727 |
| 通讯作者 | Mei, ZX (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Key Lab Renewable Energy, Beijing 100190, Peoples R China. |
| 中文摘要 | We report the possible sites that beryllium atoms can occupy in BeZnO alloy films by a comparative study. The epitaxial BexZn1-O-x (x = 0, 0.06, 0.1, 1) films were prepared by a molecular beam epitaxy technique, and their structural properties were characterized with x-ray diffraction, Raman spectroscopy and x-ray photoelectron spectroscopy, while the Be composition, x, was measured with time of flight elastic recoil detection analysis. When x is 6%, substitutional and interstitial Be atoms are revealed to be co-existing in BexZn1-xO films. Furthermore, phase segregation of BeO is observed when x increases to 10% due to the huge difference of the bond length between Be-O and Zn-O. In this case, most of the Be atoms are found to form BeO particles, rather than a BeZnO alloy, so as to reduce the formation energy. The incorporation of Be atoms in the ZnO lattice consequently decreases in Be0.1Zn0.9O, resulting in a smaller bandgap than that of Be0.06Zn0.94O. |
| 资助信息 | National Science Foundation [61076007, 11174348, 51272280, 11274366, 61204067]; Ministry of Science and Technology of China [2011CB302002, 2011CB302006]; Chinese Academy of Sciences |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59261]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Ye, DQ,Mei, ZX,Liang, HL,et al. Beryllium sites in MBE-grown BeZnO alloy films[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2014,47(17). |
| APA | Ye, DQ.,Mei, ZX.,Liang, HL.,Liu, YL.,Azarov, A.,...&Du, XL.(2014).Beryllium sites in MBE-grown BeZnO alloy films.JOURNAL OF PHYSICS D-APPLIED PHYSICS,47(17). |
| MLA | Ye, DQ,et al."Beryllium sites in MBE-grown BeZnO alloy films".JOURNAL OF PHYSICS D-APPLIED PHYSICS 47.17(2014). |
入库方式： OAI收割
来源：物理研究所
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