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Efficient visible photoluminescence from carbon nanotubes in zeolite templates

Authors Guo, JD
Yang, CL
Li, ZM
Bai, M
Liu, HJ
Li, GD
Wang, EG
Chan, CT
Tang, ZK
Ge, WK
Xiao, XD
Issue Date 2004
Source Physical review letters, v. 93, (1), 2004, JUL 2, article number 017402
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 similar to1\%-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 similar to2.6 and similar to1.7 eV, respectively.
ISSN 0031-9007
Rights Phys. Rev. Letter. © copyright (2004) American Physical Society. The Journal's web site is located at
Language English
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