Gold-Nanoparticles/Boron-Doped-Diamond Composites as Surface-Enhanced Raman Scattering Substrates  

作　　者：Ai-Qi Zhang Qi-Liang Wang Ying Gao Shao-Heng Cheng Hong-Dong Li 张爱琪;王启亮;高莹;成绍恒;李红东(State Key Lab of Superhard Materials,College of Physics,Jilin University,Changchun 130012,China)

机构地区：[1]State Key Lab of Superhard Materials,College of Physics,Jilin University,Changchun 130012,China

出　　处：《Chinese Physics Letters》2020年第6期107-110,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(Grant Nos.51672102 and 51972135)。

摘　　要：By vacuum sputtering and annealing processes of gold(Au)films on boron-doped diamond(BDD)surfaces,Aunanoparticles/BDD(AuNP/BDD)composite substrates were prepared as surface-enhanced Raman scattering(SERS)substrates.The SERS performances of the substrate were investigated using methylene blue molecule as a probe.With the AuNPs having an average diameter of 20 nm,high performance of SERS was achieved at an enhancement factor of 9×10~5,arising from the synergistic effect of electromagnetic enhancement from Au NPs and chemical enhancement from diamond.The AuNP/BDD substrate is demonstrated to be highly sensitive,reproducible,stable,and reusable for the SERS examination.Due to the facile preparation process and controllable surface morphology,the AuNP/BDD substrates are favorable as a high performance SERS platform performed in practical applications.

关 键 词：BORON SYNERGISTIC ANNEALING 

分 类 号：TB33[一般工业技术—材料科学与工程] O657.37[理学—分析化学]