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US 8,804,116 B2Granted
Surface-enhanced Raman scattering substrate and Raman detecting system having the same
AssigneesTsinghua University, Hon Hai Precision Industry Co., Ltd.
InventorsYing-Hui Sun, Kai Liu, Kai-Li Jiang, Jiao Miao, Shou-Shan Fan
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Abstract
A surface-enhanced Raman scattering substrate includes a carbon nanotube film structure and a plurality of metallic particles disposed on the carbon nanotube film structure. The carbon nanotube film structure includes a number of carbon nanotubes joined by van der Waals attractive force therebetween. The carbon nanotube film structure is a free-standing structure.
Claims15
A surface-enhanced Raman scattering substrate, comprising:
- a carbon nanotube film structure comprising a plurality of carbon nanotubes joined by van der Waals attractive force therebetween and substantially aligned in a single direction;
- and
- a metallic layer comprising a plurality of metallic particles disposed on outer surfaces of the carbon nanotubes, wherein the carbon nanotube film structure further comprises transition layers disposed between the carbon nanotubes and the metallic particles, and the transition layers are made of silicon dioxide.
A surface-enhanced Raman scattering substrate, comprising:
- a carbon nanotube film structure;
- a transition layer disposed on a surface of the carbon nanotube film structure, wherein the transition layers are made of silicon dioxide;
- and
- a metallic layer disposed on a surface of the transition layer opposite to the carbon nanotube film structure, wherein the metallic layer has a thickness of about 3 nanometers to about 7 nanometers;
- wherein the carbon nanotube film structure comprises a plurality of carbon nanotube films, each of the carbon nanotube film comprises a plurality of carbon nanotubes substantially orienting along a preferred orientation and substantially parallel to a surface of the corresponding carbon nanotube film, and aligned directions of adjacent carbon nanotube films is substantially perpendicular to each other.
2 more elements
Dependencies are inferred from the claim text.