Journal
NANOSCALE RESEARCH LETTERS
Volume 8, Issue -, Pages 1-6Publisher
SPRINGEROPEN
DOI: 10.1186/1556-276X-8-495
Keywords
Surface-enhanced Raman scattering; AAO; Nanowire network
Funding
- National Natural Science Foundation of China [61178004]
- Tianjin Natural Science Foundation [12JCQNJC01100, 06TXTJJC13500]
- Doctoral Program of Higher Education of China [20110031120005]
- Program for Changjiang Scholars and Innovative Research Team in Nankai University [B07013]
- Fundamental Research Funds for the Central Universities
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In this paper, nanowire network anodized aluminum oxide (AAO) was fabricated by just adding a simple film-eroding process after the production of porous AAO. After depositing 50 nm of Au onto the surface, nanowire network AAO can be used as ultrasensitive and high reproducibility surface-enhanced Raman scattering (SERS) substrate. The average Raman enhancement factor of the nanowire network AAO SERS substrate can reach 5.93 x 10(6), which is about 14% larger than that of commercial KlariteA (R) substrates. Simultaneously, the relative standard deviations in the SERS intensities are limited to approximately 7%. All of the results indicate that our large-area low-cost high-performance nanowire structure AAO SERS substrates have a great advantage in chemical/biological sensing applications.
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