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Efficient visible photoluminescence from carbon nanotubes in zeolite templates

Authors Guo, Jiandong
Yang, Chunlei HKUST affiliated (currently or previously)
Li, Z.M. HKUST affiliated (currently or previously)
Bai, Ming
Liu, H.J. HKUST affiliated (currently or previously)
Li, G.D.
Wang, E.G.
Chan, C.T. View this author's profile
Tang, Z.K. View this author's profile
Ge, W.K. HKUST affiliated (currently or previously)
Xiao, Xudong HKUST affiliated (currently or previously)
Issue Date 2004
Source Physical Review Letters , v. 93, (1), July 2004, p. 017402-1
Summary 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 ∼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 ∼2.6 and ∼1.7  eV, respectively.
ISSN 0031-9007
Rights © 2004 The American Physical Society
Language English
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