A well-ordered flower-like gold nanostructure for integrated sensors via surface-enhanced Raman scattering
A well-ordered flower-like gold nanostructure for integrated sensors via surface-enhanced Raman scattering
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DOI：
10.1088/0957-4484/20/23/235302
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发表时间：
2009-06-10
期刊：
影响因子：
3.5
通讯作者：
Choi, Yang-Kyu
中科院分区：
文献类型：
--
作者：
Kim, Ju-Hyun;Kang, Taejoon;Choi, Yang-Kyu
采用自顶向下的传统光刻技术和自底向上的电沉积技术相结合的方法，制备了一种用于表面增强拉曼散射（SERS）的可控花状金纳米结构阵列。将电沉积时间调整为2 ~ 60 min，得到了平均粗糙度为5.1 ~ 49.6 nm的金纳米结构。粗糙的金纳米结构提供了更高的SERS增强，而金纳米结构获得的最高SERS强度是最低强度的29倍。在金纳米结构上观察了亮甲酰蓝（BCB）、苯硫醇（BT）、腺嘌呤和DNA的SERS光谱。
A controllable flower-like Au nanostructure array for surface-enhanced Raman scattering (SERS) was fabricated using the combined technique of the top-down approach of conventional photolithography and the bottom-up approach of electrodeposition. Au nanostructures with a mean roughness ranging from 5.1 to 49.6 nm were obtained by adjusting electrodeposition time from 2 to 60 min. The rougher Au nanostructure provides higher SERS enhancement, while the highest SERS intensity obtained with the Au nanostructure is 29 times stronger than the lowest intensity. The SERS spectra of brilliant cresyl blue (BCB), benzenethiol (BT), adenine and DNA were observed from the Au nanostructure.