Photoluminescence spectroscopy of carbon nanotube bundles: evidence for exciton energy transfer.
نویسندگان
چکیده
We investigate photoluminescence of nanotube bundles. Their spectra are explained by exciton energy transfer between adjacent tubes, whereby excitation of large gap tubes induces emission from smaller gap ones. The consequent relaxation rate is faster than nonradiative recombination, leading to enhanced photoluminescence of acceptor tubes.
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عنوان ژورنال:
- Physical review letters
دوره 99 13 شماره
صفحات -
تاریخ انتشار 2007