Bright Infrared Emission from Electrically Induced Excitons in Carbon Nanotubes
@article{Chen2005BrightIE, title={Bright Infrared Emission from Electrically Induced Excitons in Carbon Nanotubes}, author={Jia Chen and V. Perebeinos and M. Freitag and J. Tsang and Q. Fu and J. Liu and P. Avouris}, journal={Science}, year={2005}, volume={310}, pages={1171 - 1174} }
We used the high local electric fields at the junction between the suspended and supported parts of a single carbon nanotube molecule to produce unusually bright infrared emission under unipolar operation. Carriers were accelerated by band-bending at the suspension interface, and they created excitons that radiatively recombined. This excitation mechanism is ∼1000 times more efficient than recombination of independently injected electrons and holes, and it results from weak electron-phonon… CONTINUE READING
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