Fabrication of gold-coated PDMS surfaces with arrayed triangular micro/nanopyramids for use as SERS substrates.
Fabrication of gold-coated PDMS surfaces with arrayed triangular micro/nanopyramids for use as SERS substrates.
复制标题
制备具有阵列三角形微米/纳米金字塔的镀金 PDMS 表面，用作 SERS 基底
DOI：
10.3762/bjnano.8.227
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发表时间：
2017
影响因子：
3.1
通讯作者：
Cai J
中科院分区：
文献类型：
--
作者：
Zhang J;Yan Y;Miao P;Cai J
Using the tip-based continuous indentation process, arrays of three-dimensional pyramidal cavities have been successfully machined on a copper template and the structures were successfully transferred to a polydimethylsiloxane (PDMS) surface using a reverse nanoimprinting approach. The structured PDMS surface is coated with a thin Au film, and the final substrate is demonstrated as a surface-enhanced Raman spectroscopy (SERS) substrate. Rhodamine 6G (R6G) was used as a probe molecule in the present study to confirm the SERS measurements. Arrays of micro/nanostructures of different dimensions were formed by the overlap of pyramidal cavities with different adjacent distances using the tip-based continuous indentation process. The effects of the reverse nanoimprinting process and coating process on the final topography of the structures are studied. The experimental results show that the Raman intensity of the Au-film-coated PDMS substrate is influenced by the topography of the micro/nanostructures and by the thickness of the Au film. The Raman intensity of 1362 cm−1 R6G peak on the structured Au-film-coated PDMS substrate is about 8 times higher than the SERS tests on a commercial substrate (Q-SERS). A SERS enhancement factor ranging from 7.5 × 105 to 6 × 106 was achieved using the structured Au-film-coated PDMS surface, and it was demonstrated that the method proposed in this paper is reliable, replicable, homogeneous and low-cost for the fabrication of SERS substrates.
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影响因子：
3.1
作者：
Ærøe Hyllested J;Espina Palanco M;Hagen N;Mogensen KB;Kneipp K
通讯作者：
Kneipp K
影响因子：
--
作者：
Liou JC;Diao CC;Lin JJ;Chen YL;Yang CF
通讯作者：
Yang CF
聚焦离子束纳米加工开发的硅基金薄膜高性能表面增强拉曼散射基底
影响因子：
--
作者：
Gao T;Xu Z;Fang F;Gao W;Zhang Q;Xu X
通讯作者：
Xu X
影响因子：
35
作者：
Kinkhabwala, Anika;Yu, Zongfu;Moerner, W. E.
通讯作者：
Moerner, W. E.
基于表面增强拉曼散射传感器的呼吸分析可区分早期和晚期胃癌患者与健康人。
影响因子：
17.1
作者：
Chen, Yunsheng;Zhang, Yixia;Cui, Daxiang
通讯作者：
Cui, Daxiang