AuNU dimers on ITO substrate with the highest refractive index sensitivity as chemical sensor
文献类型：期刊论文
| 作者 | Chen B(陈斌)1; Liu, Chuanjun2; Ge, Lingpu2; Shang L(商亮)3; Guo, Hao2; Hayashi, Kenshi2 |
| 刊名 | IEEE Sensors Journal
 |
| 出版日期 | 2022 |
| 页码 | 1-9 |
| 关键词 | Au nano-urchin dimers Electrical hot spots LSPR sensor Plasmonic coupling |
| ISSN号 | 1530-437X |
| 产权排序 | 3 |
| 英文摘要 | We synthesized gold (Au) nano-urchins (AuNUs) and deposited these AuNUs on indium tin oxide (ITO) glass. We compared the influence of the resistance of ITO glass and the deposition density of NUs on refractive index sensitivity (RIS) of these ITO substrates, and found that ITO glass with resistance of 8-12 /sq and substrates with many AuNU dimers gave the highest RIS which was as high as 455 nm/RIU (refractive index unit), which is the highest on substrate as we known. Compared with AuNUs deposited on quartz glass, the extinction peak intensity and RIS were enhanced on ITO glass. The RIS enhancement is mainly attributed to the considerably enhanced electric field at the tips of AuNUs, electrical hot spots generated by AuNU aggregates (such as dimers), and the repulsive forces decrease in each AuNU by the ITO layer. It is thought that further shape, distribution, and size change of AuNUs and dimers on ITO glass will greatly affect the RIS and spectral characteristics. AuNU substrate is then proposed for heparin detection through Au etching. The results showed that heparin detection was realized in a linear range of 0.05 to 5 g/mL with a detection limit of 8 ng/mL, which has potential to be applied in the practical environment. |
| 语种 | 英语 |
| 资助机构 | National Nature Science Foundation of China No. 61801400 ; JSPS KAKENHI Grant Number JP18F18392 |
| 源URL | [http://ir.sia.cn/handle/173321/30589]  |
| 专题 | 沈阳自动化研究所_机器人学研究室 |
| 通讯作者 | Chen B(陈斌); Hayashi, Kenshi |
| 作者单位 | 1.Chongqing Key Laboratory of Non-linear Circuit and Intelligent Information processing, College of Electronic and Information Engineering, Southwest University, Chongqing 400715, China 2.Department of Electronics, Graduate school of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, Japan 3.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China. |
| 推荐引用方式 GB/T 7714 | Chen B,Liu, Chuanjun,Ge, Lingpu,et al. AuNU dimers on ITO substrate with the highest refractive index sensitivity as chemical sensor[J]. IEEE Sensors Journal,2022:1-9. |
| APA | Chen B,Liu, Chuanjun,Ge, Lingpu,Shang L,Guo, Hao,&Hayashi, Kenshi.(2022).AuNU dimers on ITO substrate with the highest refractive index sensitivity as chemical sensor.IEEE Sensors Journal,1-9. |
| MLA | Chen B,et al."AuNU dimers on ITO substrate with the highest refractive index sensitivity as chemical sensor".IEEE Sensors Journal (2022):1-9. |
入库方式： OAI收割
来源：沈阳自动化研究所
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