Molecular Sensing with Ultrafine Silver Crystals on Hexagonal Aluminum Nitride Nanorod Templates

A fully plasma-based technique of generating ultrafine (sub-10-nm) nanocrystalline silver particulates on wide band gap and chemically inert hexagonal aluminum nitride nanorod templates has been demonstrated. These specially prepared substrates are ready to use for molecular sensing by room-temperat...

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Bibliographic Details
Published inJournal of the American Chemical Society Vol. 127; no. 9; pp. 2820 - 2821
Main Authors Chattopadhyay, Surojit, Shi, Shih Chen, Lan, Zon Huang, Chen, Chia Fu, Chen, Kuei-Hsien, Chen, Li-Chyong
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 09.03.2005
Subjects
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Materials science
Nanocrystalline materials
Nanoscale materials and structures: fabrication and characterization
Physics
Metals Compounds
Metal coating
Hexagonal crystals
Transmission electron microscopy
Ion beam sputtering
Aluminium nitrides
SAED
Metal particle
Nanostructured materials
Heat treatments
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Summary:A fully plasma-based technique of generating ultrafine (sub-10-nm) nanocrystalline silver particulates on wide band gap and chemically inert hexagonal aluminum nitride nanorod templates has been demonstrated. These specially prepared substrates are ready to use for molecular sensing by room-temperature surface-enhanced Raman scattering. An enhancement factor of 2 × 106 was observed for micromolar solutions of Rhodamine 6G.
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ISSN:0002-7863
1520-5126
DOI:10.1021/ja042954l