Tunable Surface‐Enhanced Raman Scattering from High‐Density Gold Semishell Arrays with Controllable Dimensions |
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| Authors: | Xianzhong Lang Dr Jiaqi Li Xiaoguang Luo Yan Zhang Yin Yin Prof Teng Qiu |
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| Institution: | Department of Physics and Key Laboratory of Microelectromechanical Systems (MEMS) of the Ministry of Education, Southeast University, Nanjing 211189 (P.R. China), Fax: (+86)?025‐52090600‐8210 |
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| Abstract: | A convenient reproducible technique is reported for the fabrication of large‐area gold semishell arrays by mechanically pressing porous anodic alumina (PAA) stamps into gold/polymer bilayer structures that serve as robust and cost‐efficient surface‐enhanced Raman‐scattering (SERS) substrates. The surface structure can be tuned further to optimize the enhancement factor according to optional PAA fabrication parameters and imprinting pressures. Finite‐difference time‐domain calculations indicate that the structure may possess excellent SERS characteristics due to the high density and abundance of hot spots. |
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| Keywords: | gold semishell arrays imprints plasmon modes porous anodic alumina surface‐enhanced Raman scattering |
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