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Author Qiu, Teng ♦ Zhang, Wenjun ♦ Lang, Xianzhong ♦ Zhou, Yongjin ♦ Cui, Tiejun ♦ Chu, Paul K.
Source World Health Organization (WHO)-Global Index Medicus
Content type Text
Publisher Wiley-VCH
File Format HTM / HTML
Language English
Difficulty Level Medium
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences ♦ Life sciences; biology ♦ Biochemistry ♦ Technology ♦ Medicine & health ♦ Pharmacology and therapeutics ♦ Diseases ♦ Agriculture & related technologies ♦ Manufacture for specific uses ♦ Precision instruments & other devices
Subject Domain (in MeSH) Inorganic Chemicals ♦ Chemicals and Drugs ♦ Investigative Techniques ♦ Analytical, Diagnostic and Therapeutic Techniques and Equipment ♦ Natural Science Disciplines ♦ Physical Sciences ♦ Technology, Industry, and Agriculture ♦ Technology and Food and Beverages
Subject Keyword Discipline Nanotechnology ♦ Nanostructures ♦ Chemistry ♦ Silver ♦ Spectrum Analysis, Raman ♦ Methods ♦ Nanotechnology ♦ Journal Article ♦ Research Support, Non-u.s. Gov't
Abstract A convenient nanoscale technique is reported for the fabrication of highly ordered hemispherical silver nanocap arrays templated by porous anodic alumina (PAA) membranes as robust and cost-efficient surface-enhanced Raman scattering (SERS) substrates. This geometry produces a high Raman signal due to its periodic hexagonal arrangements and control of the gap between the nanostructures in the sub-10-nm regime. The surface structure can be tuned further to optimize the enhancement factor according to optional PAA fabrication and silver deposition parameters. Finite-difference time-domain calculations indicate that the structure may possess excellent SERS characteristics due to the high density and abundance of hot spots.
Description Author Affiliation: Qiu T ( Department of Physics, Southeast University, Nanjing 211189, PR China.
ISSN 16136810
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Reading ♦ Research ♦ Self Learning
Interactivity Type Expositive
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2009-10-01
Publisher Place Germany
e-ISSN 16136829
Journal Small
Volume Number 5
Issue Number 20

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Source: WHO-Global Index Medicus