Fabrication and SERS Performance of Silver-Nanoparticle-Decorated Si/ZnO Nanotrees in Ordered Arrays

被引：195

作者：

Cheng, Chuanwei ^{[1
]}

Yan, Bin ^{[1
]}

Wong, She Mein ^{[2
]}

Li, Xianglin ^{[1
]}

Zhou, Weiwei ^{[1
]}

Yu, Ting ^{[1
]}

Shen, Zexiang ^{[1
]}

Yu, Hongyu ^{[2
]}

Fan, Hong Jin ^{[1
]}

机构：

[1] Nanyang Technol Univ, Div Phys & Appl Phys, Sch Phys & Math Sci, Singapore 637371, Singapore

[2] Nanyang Technol Univ, Div Microelect, Sch Elect & Elect Engn, Singapore 639798, Singapore

来源：

ACS APPLIED MATERIALS & INTERFACES | 2010年 / 2卷 / 07期

关键词：

Si nanowire; ZnO nanorod; hierarchical; hydrothermal; SERS; ENHANCED RAMAN-SCATTERING; NANOSPHERE LITHOGRAPHY; SPECTROSCOPY; NANOSCALE; NANOWIRES; MOLECULES; SUBSTRATE; PYRIDINE; SPECTRA; GROWTH;

D O I：

10.1021/am100270b

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Highly ordered treelike Si/ZnO hierarchical nanostructures are successfully prepared in a large scale by combining two common techniques, viz., photolithography-assisted wafer-scale fabrication of Si nanopillars and bottom-up hydrothermal growth of ZnO nanorods. Silver nanoparticles are decorated onto the nanotrees by photochemical reduction and deposition. The Si/ZnO/Ag hybrid nanotrees are employed as SERS-active substrates, which exhibit good performance in terms of high sensitivity and good reproducibility. In addition to the SERS application, such ordered Si/ZnO arrays might also find potential applications in light-emitting diodes and solar cells.

引用

页码：1824 / 1828

页数：5

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