Space-confined fabrication of silver nanodendrites and their enhanced SERS activity
文献类型：期刊论文
| 作者 | Wang, Shuqi1; Xu, Li-Ping1; Wen, Yongqiang1; Du, Hongwu1; Wang, Shutao2; Zhang, Xueji1 |
| 刊名 | NANOSCALE
 |
| 出版日期 | 2013 |
| 卷号 | 5期号:10页码:4284-4290 |
| ISSN号 | 2040-3364 |
| DOI | 10.1039/c3nr00313b |
| 英文摘要 | Here we report a controllable method based on electrodeposition to fabricate Ag nanodendrites (NDs) on a microwell patterned electrode. The microwell patterns on the ITO electrode are fabricated via the microcontact printing technique. By varying the microwell size and electrodeposition time, the morphology of metal deposits on the microwell patterned ITO electrode can be tuned from boulders to dendrites. At the edge of the microwells, the current density was strengthened, which incurs rapid nucleation. The nucleus develops into dendrites because of Mullins-Sekerka instability. However, only boulders were observed at the center of microwells. By reducing the size of the microwells, only NDs were fabricated due to the edge effect. On the basis of understanding the underlying mechanism for dendritic growth in a confined space, our method is used for fabricating other noble metal (Au, Pt) nanodendrites. The controllable synthesis of Au and Pt NDs indicates the universality of this method. Compared with Ag film obtained from electron beam evaporation, the as-prepared Ag NDs exhibit highly enhanced surface-enhanced Raman scattering (SERS) sensitivity when they are used to detect rhodamine 6G (R6G). This approach provides a very controllable, reliable and general way for space-confined fabricating the noble metal nanodendrite arrays which show great promise in catalysis, sensing, biomedicine, electronic and magnetic devices. |
| 语种 | 英语 |
| WOS记录号 | WOS:000318362400036 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/42113]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Xueji |
| 作者单位 | 1.Univ Sci & Technol Beijing, Res Ctr Bioengn & Sensing Technol, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci BNLMS, Inst Chem, Key Lab Organ Solids, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Shuqi,Xu, Li-Ping,Wen, Yongqiang,et al. Space-confined fabrication of silver nanodendrites and their enhanced SERS activity[J]. NANOSCALE,2013,5(10):4284-4290. |
| APA | Wang, Shuqi,Xu, Li-Ping,Wen, Yongqiang,Du, Hongwu,Wang, Shutao,&Zhang, Xueji.(2013).Space-confined fabrication of silver nanodendrites and their enhanced SERS activity.NANOSCALE,5(10),4284-4290. |
| MLA | Wang, Shuqi,et al."Space-confined fabrication of silver nanodendrites and their enhanced SERS activity".NANOSCALE 5.10(2013):4284-4290. |
入库方式： OAI收割
来源：化学研究所
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