Nanoseparation-lnspired Manipulation of the Synthesis of CdS Nanorods
CdS nanorods have been sorted by length using a density gradient ultracentrifuge rate separation method. The fractions containing longer rods showed relatively stronger oxygen-related surface trap emission, while the shorter ones had dominant band-edge emission. These results suggest that the final...
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| Veröffentlicht in: | 纳米研究：英文版 2011, Vol.4 (2), p.226-232 |
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| container_title | 纳米研究：英文版 |
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| creator | Xiaoming Sun Xiuju Ma Lu Bai Junfeng Liu Zheng Chang David G. Evans Xue Duan Jiaou Wang Joseph F. Chiang |
| description | CdS nanorods have been sorted by length using a density gradient ultracentrifuge rate separation method. The fractions containing longer rods showed relatively stronger oxygen-related surface trap emission, while the shorter ones had dominant band-edge emission. These results suggest that the final length distribution of CdS nanorods is not a result of random nucleation and growth, but is related to the local synthesis conditions. Inspired by these findings, different synthesis environments （N2, air, and 02） have been employed in order to tailor the length distribution. In addition to the rod length, the photoluminescence properties of CdS nanorods can also be manipulated. Increasing the oxygen partial pressure significantly changed the growth behavior of CdS nanorods by improving the anisotropic growth. |
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The fractions containing longer rods showed relatively stronger oxygen-related surface trap emission, while the shorter ones had dominant band-edge emission. These results suggest that the final length distribution of CdS nanorods is not a result of random nucleation and growth, but is related to the local synthesis conditions. Inspired by these findings, different synthesis environments （N2, air, and 02） have been employed in order to tailor the length distribution. In addition to the rod length, the photoluminescence properties of CdS nanorods can also be manipulated. Increasing the oxygen partial pressure significantly changed the growth behavior of CdS nanorods by improving the anisotropic growth.</abstract></addata></record> |
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| identifier | ISSN: 1998-0124 |
| ispartof | 纳米研究：英文版, 2011, Vol.4 (2), p.226-232 |
| issn | 1998-0124 1998-0000 |
| language | eng |
| recordid | cdi_chongqing_primary_40762319 |
| source | Springer Nature - Complete Springer Journals |
| subjects | CdS纳米棒 光致发光特性 分离方法 合成条件 密度梯度 操纵 生长行为 长度分布 |
| title | Nanoseparation-lnspired Manipulation of the Synthesis of CdS Nanorods |
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