On atomic mechanisms governing the oxidation of Bi2Te3
文献类型：期刊论文
| 作者 | Schulzendorff, Till; Music, Denis; Chang, Keke; Schmidt, Paul; Braun, Felix N.; Heller, Martin; Hermsen, Steffen; Poellmann, Peter J.; Wagner, Cedric |
| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 出版日期 | 2017 |
| 卷号 | 29期号:48页码:485705 |
| ISSN号 | 0953-8984 |
| 英文摘要 | Oxidation of Bi2Te3 (space group R (3) over barm) has been investigated using experimental and theoretical means. Based on calorimetry, x-ray photoelectron spectroscopy and thermodynamic modelling, Bi2Te3 is at equilibrium with Bi2O3 and TeO2, whereby the most stable compound is Bi2Te3, followed by Bi2O3. The reactivity of Bi towards oxygen is expected to be higher than that of Te. This notion is supported by density functional theory. The strongest bond is formed between Bi and Te, followed by Bi-O. This gives rise to unanticipated atomic processes. Dissociatively adsorbed oxygen diffuses through Bi and Te basal planes of Bi2Te3(0 0 0 1) and preferably interacts with Bi. The Te termination considerably retards this process. These findings may clarify conflicting literature data. Any basal plane off-cut or Bi terminations trigger oxidation, but a perfect basal cleavage, where only Te terminations are exposed to air, may be stable for a longer period of time. These results are of relevance for applications in which surfaces are of key importance, such as nanostructured Bi2Te3 thermoelectric devices. |
| 公开日期 | 2017-12-25 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/13474]  |
| 专题 | 2017专题 |
| 推荐引用方式 GB/T 7714 | Schulzendorff, Till,Music, Denis,Chang, Keke,et al. On atomic mechanisms governing the oxidation of Bi2Te3[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2017,29(48):485705. |
| APA | Schulzendorff, Till.,Music, Denis.,Chang, Keke.,Schmidt, Paul.,Braun, Felix N..,...&Wagner, Cedric.(2017).On atomic mechanisms governing the oxidation of Bi2Te3.JOURNAL OF PHYSICS-CONDENSED MATTER,29(48),485705. |
| MLA | Schulzendorff, Till,et al."On atomic mechanisms governing the oxidation of Bi2Te3".JOURNAL OF PHYSICS-CONDENSED MATTER 29.48(2017):485705. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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