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Literature DB >> 23696098

Metal-dielectric-CNT nanowires for femtomolar chemical detection by surface enhanced Raman spectroscopy.

Ali Ozhan Altun¹, Seul Ki Youn, Nuri Yazdani, Tiziana Bond, Hyung Gyu Park.

Abstract

A highly sensitive substrate for surface enhanced Raman spectroscopy (SERS) is formed by arrays of gold-coated metallic carbon nanotubes having a nanoinsert of high-k dielectric (hafnia) as an energy coupling barrier. Repeated femtomolar detection of 1,2 bis-(4-pyridyl)-ethylene in solution demonstrates the critical contribution of this plasmonic energy coupling barrier to the enhanced chemical sensitivity.

Entities: Chemical

Keywords: SERS; energy coupling barrier; femtomolar detection; metal-dielectric-CNT nanowires

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Substances：

Year: 2013 PMID： 23696098 DOI： 10.1002/adma.201300571

Source DB: PubMed Journal: Adv Mater ISSN： 0935-9648 Impact factor: 30.849

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Cited

4 in total

1. Tunable and highly reproducible surface-enhanced Raman scattering substrates made from large-scale nanoparticle arrays based on periodically poled LiNbO₃ templates.

Authors: Xiaoyan Liu; Kenji Kitamura; Qiuming Yu; Jiajie Xu; Minoru Osada; Nagata Takahiro; Jiangyu Li; Guozhong Cao
Journal: Sci Technol Adv Mater Date: 2013-10-25 Impact factor: 8.090

Metal-dielectric-CNT nanowires for femtomolar chemical detection by surface enhanced Raman spectroscopy.

1. Tunable and highly reproducible surface-enhanced Raman scattering substrates made from large-scale nanoparticle arrays based on periodically poled LiNbO₃ templates.

2. A Forest of Sub-1.5-nm-wide Single-Walled Carbon Nanotubes over an Engineered Alumina Support.

3. Gradient SERS Substrates with Multiple Resonances for Analyte Screening: Fabrication and SERS Applications.

Review 4. Growth and characterization of CNT-TiO2 heterostructures.

Metal-dielectric-CNT nanowires for femtomolar chemical detection by surface enhanced Raman spectroscopy.

1. Tunable and highly reproducible surface-enhanced Raman scattering substrates made from large-scale nanoparticle arrays based on periodically poled LiNbO3 templates.

2. A Forest of Sub-1.5-nm-wide Single-Walled Carbon Nanotubes over an Engineered Alumina Support.

3. Gradient SERS Substrates with Multiple Resonances for Analyte Screening: Fabrication and SERS Applications.

Review 4. Growth and characterization of CNT-TiO2 heterostructures.

1. Tunable and highly reproducible surface-enhanced Raman scattering substrates made from large-scale nanoparticle arrays based on periodically poled LiNbO₃ templates.