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Observation of rapid Auger recombination in optically excited semiconducting carbon nanotubes
Physical Review B
Time-resolved fluorescence measurements of single-walled carbon nanotubes (SWNTs) reveal rapid electron-hole pair annihilation when multiple electron-hole pairs are present in a nanotube. The process can be understood as Auger recombination with a rate of ϳ1 ps −1 for just two electron-hole pairs in a 380-nm long SWNT. This efficient nonradiative recombination reflects the strong carrier-carrier interactions in the quasione-dimensional SWNTs. In addition to affecting nanotube fluorescence,doi:10.1103/physrevb.70.241403 fatcat:hxxpzi7u7nfazgzi3wsmscwuh4