Observation of rapid Auger recombination in optically excited semiconducting carbon nanotubes
- 15 December 2004
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 70 (24) , 241403
- https://doi.org/10.1103/physrevb.70.241403
Abstract
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 for just two electron-hole pairs in a 380-nm long SWNT. This efficient nonradiative recombination reflects the strong carrier-carrier interactions in the quasi-one-dimensional SWNTs. In addition to affecting nanotube fluorescence, Auger recombination imposes limitations on the sustained electron-hole density achievable within a SWNT.
Keywords
This publication has 20 references indexed in Scilit:
- Electronic structure and dynamics of optically excited single-wall carbon nanotubesApplied Physics A, 2004
- Ultrafast Spectroscopy of Excitons in Single-Walled Carbon NanotubesPhysical Review Letters, 2004
- Electrically Induced Optical Emission from a Carbon Nanotube FETScience, 2003
- Ultrafast Carrier Dynamics in Single-Wall Carbon NanotubesPhysical Review Letters, 2003
- Carbon NanotubesAccounts of Chemical Research, 2002
- Ambipolar Electrical Transport in Semiconducting Single-Wall Carbon NanotubesPhysical Review Letters, 2001
- Optical Gain and Stimulated Emission in Nanocrystal Quantum DotsScience, 2000
- Quantization of Multiparticle Auger Rates in Semiconductor Quantum DotsScience, 2000
- Auger and Coulomb Charging Effects in Semiconductor NanocrystallitesPhysical Review Letters, 1995
- Helical microtubules of graphitic carbonNature, 1991