Femtomolar response of a plasmon-coupled ZnO/graphene/silver hybrid whispering-gallery mode microcavity for SERS sensing

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成果类型：

期刊论文

作者：

Zhu, Qiuxiang;Xu, Chunxiang*;Wang, Delong;Liu, Bing;Qin, Feifei;...

通讯作者：

Xu, Chunxiang

作者机构：

[Wang, Delong; Liu, Bing; Zhao, Xiangwei; Shi, Zengliang; Zhu, Qiuxiang; Qin, Feifei; Zhu, Zhu; Liu, Yanjun; Xu, Chunxiang] Southeast Univ, Sch Biol Sci & Med Engn, State Key Lab Bioelect, Natl Demonstrat Ctr Expt Biomed Engn Educ, Nanjing 210096, Jiangsu, Peoples R China.

[Zhu, Qiuxiang] Hunan City Univ, Coll Informat & Elect Engn, All Solid State Energy Storage Mat & Devices Key, Yiyang 413000, Peoples R China.

[Zhu, Qiuxiang] Hunan Aihua Grp Co Ltd, Yiyang 413000, Peoples R China.

通讯机构：

[Xu, Chunxiang] S

Southeast Univ, Sch Biol Sci & Med Engn, State Key Lab Bioelect, Natl Demonstrat Ctr Expt Biomed Engn Educ, Nanjing 210096, Jiangsu, Peoples R China.

语种：

英文

期刊：

Journal of Materials Chemistry C

ISSN：

2050-7526

年：

2019

卷：

期：

页码：

2710-2716

DOI：

10.1039/c8tc06305b

基金类别：

NSFCNational Natural Science Foundation of China (NSFC) [11734005, 61475035, 61704024, U1832143]; Hunan Provincial Natural Science Foundation of ChinaNatural Science Foundation of Hunan Province [2019JJ5028]; Collaborative Innovation Center of Suzhou Nano Science and Technology

机构署名：

本校为其他机构

院系归属：

信息与电子工程学院

摘要：

A whispering-gallery mode (WGM) microcavity provides a natural structure to strengthen the light-matter interactions. The surface plasmon (SP) of a metal generates tremendous electromagnetic near-fields which contributes to the detection of Raman signals. Moreover, graphene can improve the Raman signals through charge transfer between the graphene and the analyte molecules, namely chemical enhancement. Combining these three kinds of enhancement factors, a femtomolar SERS response with an enhancement factor of 0.95 × 10 12 and an ultralow detec...

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Femtomolar response of a plasmon-coupled ZnO/graphene/silver hybrid whispering-gallery mode microcavity for SERS sensing

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