Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2010-04-24
Journal of Physics D: Applied Physics, 42, 055111 (2009)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Accepted by the Journal of Physics D: Applied Physics
Scientific paper
10.1088/0022-3727/42/5/055111
We present photocurrent power-enhancement calculations of a carbon nanotube p-n junction electromagnetically coupled to a highly-efficient photonic structure. Particular attention is paid to a GaAs photonic structure specifically modified to increase the intensity of infrared light onto the nanotube region for effective energy conversion. Using finite-difference time-domain calculations, we compute a significant increase in electric field intensity in the nanotube region which enables an estimation of power efficiency. These results demonstrate the potential of using a photonic structure to couple large-scale infrared sources with carbon nanotubes while still retaining all the unique optoelectronic properties found at the nanoscale.
Morales Alfredo M.
Wong Bryan M.
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