Ultrafast Carrier Dynamics and Hot Electron Extraction in Tetrapod-Shaped CdSe Nanocrystals
文献类型：期刊论文
| 作者 | Jing, P. T.; W. Y. Ji; X. Yuan; S. N. Qu; R. G. Xie; M. Ikezawa; J. L. Zhao; H. B. Li and Y. Masumoto |
| 刊名 | Acs Applied Materials & Interfaces
 |
| 出版日期 | 2015 |
| 卷号 | 7期号:15页码:7938-7944 |
| 英文摘要 | The ultrafast carrier dynamics and hot electron extraction in. tetrapod-shaped CdSe nanocrystals was studied by femtosecond transient absorption (TA) spectroscopy. The carriers relaxation process from the, higher electronic states (CB2, CB3(2), and CB4) to the lowest electronic state (CB1) was demonstrated to have a time constant of 1.04 ps, resulting from the, spatial electron transfer from arms to, a core. The lowest electronic state in the central core exhibited a long decay time of 5.07 us in agreement with the reported theoretical calculation. The state filling mechanism And Coulomb blockade effect in the CdSe tetrapod were clearly observed in the pump-fluence-dependent transient absorption spectra. Hot electrons were transferred from arm states into the electron acceptor molecules before relaxation into core states. |
| 收录类别 | SCI ; EI |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/55296]  |
| 专题 | 长春光学精密机械与物理研究所_中科院长春光机所知识产出 |
| 推荐引用方式 GB/T 7714 | Jing, P. T.,W. Y. Ji,X. Yuan,et al. Ultrafast Carrier Dynamics and Hot Electron Extraction in Tetrapod-Shaped CdSe Nanocrystals[J]. Acs Applied Materials & Interfaces,2015,7(15):7938-7944. |
| APA | Jing, P. T..,W. Y. Ji.,X. Yuan.,S. N. Qu.,R. G. Xie.,...&H. B. Li and Y. Masumoto.(2015).Ultrafast Carrier Dynamics and Hot Electron Extraction in Tetrapod-Shaped CdSe Nanocrystals.Acs Applied Materials & Interfaces,7(15),7938-7944. |
| MLA | Jing, P. T.,et al."Ultrafast Carrier Dynamics and Hot Electron Extraction in Tetrapod-Shaped CdSe Nanocrystals".Acs Applied Materials & Interfaces 7.15(2015):7938-7944. |
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