Ordered gold-coated glass nano-sting array with large density tips as highly SERS-active chips for detection of trace organophosphorous toxicant
文献类型：期刊论文
| 作者 | Zhao, Qian; Liu, Guangqiang; Zhang, Hongwen ; Cai, Weiping
|
| 刊名 | NANOTECHNOLOGY
 |
| 出版日期 | 2020-10-09 |
| 卷号 | 31 |
| 关键词 | gold-coated glass nano-sting arrays high density nano-tips colloidal template reactive ion etching high performance sers chips ultrasensitive detection of toxic organophosphorus molecules |
| ISSN号 | 0957-4484 |
| DOI | 10.1088/1361-6528/ab9eda |
| 通讯作者 | Cai, Weiping(wpcai@issp.ac.cn) |
| 英文摘要 | A simple and cost-effective route to fabricating gold-coated glass nano-stings' arrays is presented for highly efficient surface enhanced Raman spectroscopy (SERS) chips via reactive ion etching of the glass slide covered with polystyrene (PS) colloidal monolayer and sputtering deposition of gold on it. The as-fabricated SERS chips consist of the nearly-hemispherical particles with submicron-size, which are hexagonally arranged into the ordered arrays. There are many short and long Au-coated glass nano-stings standing vertically on the hemispherical particles, showing high density tips (up to 7.0 x 10(3)mu m(-2)). The formation of such gold-coated glass hierarchically structured array is attributed to the geometry of PS colloidal monolayer and the nanoscale roughness of glass slide's surface. Further, it has been demonstrated that such gold-coated glass array chip is highly SERS-active and can be utilized to detect trace organophosphorous toxicant with the limit below ppt level and good reproducibility in measurements. The intensity of the Raman peak shows the linear relation, in logarithmic scale, with the organophosphorous concentration from ppt to ppm level, exhibiting the possibility of quantitative detection in a large concentration range. This work has demonstrated the cost-effective method to fabricate the high performance SERS chips for trace detection of toxic molecules. |
| WOS关键词 | RAMAN-SPECTROSCOPY ; SILVER ; FABRICATION ; NANOPARTICLES ; PATTERNS |
| 资助项目 | National Key Research and Development Program of China[2017YFA0207101] ; National Natural Science Foundation of China[51801204] ; National Natural Science Foundation of China[51531006] ; National Natural Science Foundation of China[11974352] ; National Natural Science Foundation of China[51771182] ; CAS/SAF International Partner-ship Program for Creative Research Teams |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000553444900001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; CAS/SAF International Partner-ship Program for Creative Research Teams |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/102923]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Cai, Weiping |
| 作者单位 | Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Qian,Liu, Guangqiang,Zhang, Hongwen,et al. Ordered gold-coated glass nano-sting array with large density tips as highly SERS-active chips for detection of trace organophosphorous toxicant[J]. NANOTECHNOLOGY,2020,31. |
| APA | Zhao, Qian,Liu, Guangqiang,Zhang, Hongwen,&Cai, Weiping.(2020).Ordered gold-coated glass nano-sting array with large density tips as highly SERS-active chips for detection of trace organophosphorous toxicant.NANOTECHNOLOGY,31. |
| MLA | Zhao, Qian,et al."Ordered gold-coated glass nano-sting array with large density tips as highly SERS-active chips for detection of trace organophosphorous toxicant".NANOTECHNOLOGY 31(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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