Photoluminescence from Intertube Carrier Migration in Single-Walled Carbon Nanotube Bundles

作者： O. N. Torrens , D. E. Milkie , M. Zheng , J. M. Kikkawa

DOI: 10.1021/NL062071N

关键词: Energy transfer 、 Photoexcitation 、 Electronic properties 、 Coupling (electronics) 、 Nanotechnology 、 Materials science 、 Molecular physics 、 Band gap 、 Diffusion 、 Photoluminescence 、 Carbon nanotube

摘要: Photoluminescence (PL) identifies spectroscopic signatures of intertube transfer optically pumped carriers in single-walled carbon nanotube (SWNT) ensembles. Resonant photoexcitation large band gap SWNTs produces strong PL from smaller SWNTs. Magnetic alignment measurements associate the energy-transfer peaks with formation SWNT bundles, suggesting that efficient coupling results physical contact.