Self-generating nanogaps for highly effective surface-enhanced Raman spectroscopy

作     者：Yangkai Chen Huan Li Jianmei Chen Dong Li Mengyuan Zhang Guanghua Yu Lin Jiang Yi Zong Bin Dong Zhoufang Zeng Yandong Wang Lifeng Chi Yangkai Chen;Huan Li;Jianmei Chen;Dong Li;Mengyuan Zhang;Guanghua Yu;Lin Jiang;Yi Zong;Bin Dong;Zhoufang Zeng;Yandong Wang;Lifeng Chi

作者机构：Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesInstitute of Functional Nano&Soft Materials(FUNSOM)Joint International Research Laboratory of Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China Research and Development Center for Genetics ResourceChinese Academy of SciencesChangzhou 213000China Institute of Genetics and Development BiologyChinese Academy of SciencesBeijing 100101China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2022年第15卷第4期

页      面：3496-3503页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：This work was supported by the National Natural Science Foundation of China(Nos.51821002 and 21790053) the China Postdoctoral Science Foundation(No.2016M591908) 

主　　题：surface-enhanced Raman spectroscopy nanogaps colloidal lithography reactive ion etching 

摘      要：The fabrication of surface enhanced Raman spectroscopy(SERS)substrates with controlled high density hot spots still remains ***,we report highly effective SERS substrates containing the self-generating(SG)nanogaps from polystyrene nanosphere monolayer through isotropic plasma *** emergence of multimode hot spots,i.e.,metal film over nanosphere(MFON)-like hot spots(closed gaps,0 nm),individual self-aligned hot spots(discrete gaps,20 nm)and threedimensional(3D)hot spots(nanogaps,1-10 nm),makes the SG SERS substrates superior as compared to the traditional MFON or the well-ordered self-aligned SERS substrates in terms of enhancement,uniformity,and *** SG SERS substrates can function as the excellent SERS platforms for trace molecule detection in the practical application fields.