Cu_2S量子点的表面增强Raman散射  

Surface-Enhanced Raman Scattering of Cu_2S Quantum Dots

作　　者：刘安琪 周广红[1] 王佳[1] 王玥[2] 胡思怡[2] 陈欣睿 潘颖[1] 

机构地区：[1]吉林大学中日联谊医院,长春130033 [2]长春理工大学理学院,长春130022

出　　处：《吉林大学学报（理学版）》2018年第2期415-419,共5页Journal of Jilin University:Science Edition

基　　金：吉林省科技厅国际合作项目(批准号:20170414035GH)

摘　　要：先制备油性Cu_2S量子点,再根据Maxwell电磁波理论,利用Gauss软件模拟Cu_2S量子点的Raman散射光谱,并用MATLAB对不同粒径Cu_2S量子点产生的表面增强Raman散射(SERS)进行模拟分析.结果表明:Cu_2S量子点具有较强的SERS信号;当Cu_2S量子点粒径为2~10nm时,SERS信号随粒径的增大而增强,并趋于稳定.Cu_2S quantum dots were prepared and the Raman scattering spectra of Cu_2S quantum dots were simulated by Gaussian software.Based on Maxwell's electromagnetic wave theory,the surfaceenhanced Raman scattering(SERS)of Cu_2S quantum dots with different particle sizes were simulated by MATLAB.The results show that Cu_2S quantum dots have strong SERS signals.When the size of Cu_2S quantum dots is in the range of 2—10 nm,the SERS signals are enhanced with the increase of particle sizes,and finally reach a stable value.

关 键 词：Cu2S量子点 离散偶极子近似法 表面增强Raman散射 

分 类 号：O433.4[机械工程—光学工程]