Exciton energy transfer in pairs of single-walled carbon nanotubes.
نویسندگان
چکیده
We studied the exciton energy transfer in pairs of semiconducting nanotubes using high-resolution optical microscopy and spectroscopy on the nanoscale. Photoluminescence from large band gap nanotubes within bundles is observed with spatially varying intensities due to distance-dependent internanotube transfer. The range of efficient energy transfer is found to be limited to a few nanometers because of competing fast nonradiative relaxation responsible for low photoluminescence quantum yield.
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ورودعنوان ژورنال:
- Nano letters
دوره 8 5 شماره
صفحات -
تاریخ انتشار 2008