Ultrafast carrier dynamics in type-II ZnO-SnO heterostructure thin films
文献类型：期刊论文
| 作者 | Li, Zhong-guo; Cao, Hongtao; Song, Anran; Liang, Lingyan; Wu, Xingzhi; Yang, Junyi; Song, Ying-lin |
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2017 |
| 卷号 | 110期号:17页码:172102 |
| ISSN号 | 0003-6951 |
| 英文摘要 | We investigate the carrier relaxation and charge transfer dynamics in type-II ZnO-SnO heterojunction thin films using wavelength-dependent femtosecond transient absorption measurements. Under SnO-selective excitation conditions, absorption signals related to ZnO are observed on a subpico-second time scale, which indicates ultrafast electron transfer from SnO to ZnO. The spatial separation of electrons and holes across the ZnO-SnO interface leads to a long-lived carrier decay process with a lifetime of similar to 4 ns, 2 times longer than resonant excitation of both ZnO and SnO in the heterostructures. Our results provide a framework for understanding the photophysics of tin oxide semiconductor heterostructures. Published by AIP Publishing. |
| 公开日期 | 2017-12-25 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/13873]  |
| 专题 | 2017专题 |
| 推荐引用方式 GB/T 7714 | Li, Zhong-guo,Cao, Hongtao,Song, Anran,et al. Ultrafast carrier dynamics in type-II ZnO-SnO heterostructure thin films[J]. APPLIED PHYSICS LETTERS,2017,110(17):172102. |
| APA | Li, Zhong-guo.,Cao, Hongtao.,Song, Anran.,Liang, Lingyan.,Wu, Xingzhi.,...&Song, Ying-lin.(2017).Ultrafast carrier dynamics in type-II ZnO-SnO heterostructure thin films.APPLIED PHYSICS LETTERS,110(17),172102. |
| MLA | Li, Zhong-guo,et al."Ultrafast carrier dynamics in type-II ZnO-SnO heterostructure thin films".APPLIED PHYSICS LETTERS 110.17(2017):172102. |
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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