Efficient Visible Photoluminescence from Carbon Nanotubes in Zeolite Templates

Jiandong Guo, Chunlei Yang, Z. M. Li, Ming Bai, H. J. Liu, G. D. Li, E. G. Wang, C. T. Chan, Z. K. Tang, W. K. Ge, and Xudong Xiao

Phys. Rev. Lett. 93, 017402 – Published 30 June 2004

Abstract

We have found strong visible photoluminescence (PL) from 0.4 nm carbon nanotubes embedded in the ordered channels of a zeolite crystal matrix. The PL exhibits a broad emission band with an efficiency of $\sim 1 % - 5 %$ . Strong polarization dependence is observed both on the excitation and emission, indicating a preferential optical dipole along the axis of carbon nanotubes. By correlating with the absorption and Raman spectra, we identify $(3, 3)$ and $(4, 2)$ tubes to be responsible for the PL peaks at $\sim 2.6$ and $\sim 1.7 e V$ , respectively.

Received 8 April 2003

DOI:https://doi.org/10.1103/PhysRevLett.93.017402

Authors & Affiliations

Jiandong Guo¹, Chunlei Yang¹, Z. M. Li¹, Ming Bai¹, H. J. Liu¹, G. D. Li¹, E. G. Wang², C. T. Chan¹, Z. K. Tang¹, W. K. Ge¹, and Xudong Xiao^1,*

¹Department of Physics and Institute of Nano Science and Technology, Hong Kong University of Science and Technology, Hong Kong, China
²Institute of Physics, Chinese Academy of Science, Beijing, China

^*To whom correspondence should be addressed. Electronic address: phxudong@ust.hk

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Vol. 93, Iss. 1 — 2 July 2004

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