Polarized Raman Characterization of (2,2) Carbon Nanotubes Formed inside the Channels of AEL Crystals

Abstract:

A pure AlPO4-11 (AEL) zeolite crystal is optically transparent in visible region and a good insulator with thermal stability up to 1173 K. These excellent physical properties, plus their unique elliptical pore structures, make them an excellent template to fabricate ultra-thin single-walled carbon nanotubes (SWNTs).We studied the polarization dependence Raman spectra for (2,2) SWNTs formed inside the channels of AEL crystals. These (2,2) SWNTs acts as a dipolar antenna, polarized along the crystal channels axis. The polarization angle dependence of the Raman intensity indicates that the enclosed (2,2) SWNTs are highly oriented in the channels with their dipole transition moment mostly along the channels.

• Periodical: Advanced Materials Research (Volumes 160-162)
• Pages: 1596-1600
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.160-162.1596
• Online since: November 2010
• Authors: Jian Pang Zhai, Irene Ling Li, Shuang Chen Ruan
• Keywords: Carbon Nanotube (CN), Raman Spectrum, Ultra Thin, Zeolite

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