Large-scale, rapid synthesis and application in surface-enhanced Raman spectroscopy of sub-micrometer polyhedral gold nanocrystals
文献类型：期刊论文
| 作者 | Guo SJ ; Wang YL ; Wang EK |
| 刊名 | nanotechnology
 |
| 出版日期 | 2007 |
| 卷号 | 18期号:40页码:文献编号：405602 |
| 关键词 | SILVER NANOPARTICLES DIFFERENT SHAPES ASPECT RATIO SCATTERING NANORODS GROWTH POLY(N-VINYL-2-PYRROLIDONE) DEPENDENCE PARTICLES OXIDE |
| ISSN号 | 0957-4484 |
| 通讯作者 | guo sj |
| 中文摘要 | macromolecule-protected sub-micrometer polyhedral gold nanocrystals have been facilely prepared by heating an aqueous solution containing poly (n-vinyl-2-pyrrolidone) (pvp) and haucl4 without adding other reducing agents. scanning electron microscopy (sem), energy-dispersive x-ray spectroscopy (edx), ultraviolet-visible-near-infrared spectroscopy (uv-vis-nir), and x-ray diffraction (xrd) were employed to characterize the obtained polyhedral gold nanocrystals. it is found that the 10:1 molar ratio of pvp to gold is a key factor for obtaining quasi-monodisperse polyhedral gold nanocrystals. furthermore, the application of polyhedral gold nanocrystals in surface-enhanced raman scattering (sers) was investigated by using 4-aminothiophenol (4-atp) as a probe molecule. the results indicated that the sub-micrometer polyhedral gold nanocrystals modified on the ito substrate exhibited higher sers activity compared to the traditional gold nanoparticle modified film. the enhancement factor (ef) on polyhedral gold nanocrystals was about six times larger than that obtained on aggregated gold nanoparticles (similar to 25 nm). |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000249735400015 |
| 公开日期 | 2010-07-13 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/13137]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Guo SJ,Wang YL,Wang EK. Large-scale, rapid synthesis and application in surface-enhanced Raman spectroscopy of sub-micrometer polyhedral gold nanocrystals[J]. nanotechnology,2007,18(40):文献编号：405602. |
| APA | Guo SJ,Wang YL,&Wang EK.(2007).Large-scale, rapid synthesis and application in surface-enhanced Raman spectroscopy of sub-micrometer polyhedral gold nanocrystals.nanotechnology,18(40),文献编号：405602. |
| MLA | Guo SJ,et al."Large-scale, rapid synthesis and application in surface-enhanced Raman spectroscopy of sub-micrometer polyhedral gold nanocrystals".nanotechnology 18.40(2007):文献编号：405602. |
入库方式： OAI收割
来源：长春应用化学研究所
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