论文信息 - Ultrafast intra-excitonic quasiparticle annihilation by exciton-exciton scattering in individually isolated singlewalled carbon nanotubes

Ultrafast intra-excitonic quasiparticle annihilation by exciton-exciton scattering in individually isolated singlewalled carbon nanotubes

We present direct experimental measurement of exciton-exciton annihilation as fast photo-bleaching at exactly twice the lowest exciton energy in individually isolated single-walled carbon nanotubes. Exciton-exciton scatterings were rigorously identified by determining the 1s-2p transition using ultrafast mid-infrared intra-excitonic spectroscopy.

S. Lim | Hyunyong Choi | Y. H. Lee | Sangwan Sim | Jeongmook Choi

[1] M. Zheng,et al. Multiple exciton generation in single-walled carbon nanotubes. , 2010, Nano letters.

[2] M. Dresselhaus,et al. Exciton photophysics of carbon nanotubes. , 2007, Annual review of physical chemistry.

[3] Louis E. Brus,et al. The Optical Resonances in Carbon Nanotubes Arise from Excitons , 2005, Science.

[4] Leonas Valkunas,et al. Femtosecond spectroscopy of optical excitations in single-walled carbon nanotubes: evidence for exciton-exciton annihilation. , 2005, Physical review letters.

[5] D. Chemla,et al. Ultrafast terahertz probes of transient conducting and insulating phases in an electron–hole gas , 2003, Nature.