Mild bromination-assisted density-gradient ultracentrifugation to sort single-walled carbon nanotubes by metallicity

• Main Authors: Wang, Wei Zhi., Mahasin, Alam Sk., Gao, Ping Qi., Lim, Kok Hwa., Chan-Park, Mary B.
• Other Authors: School of Chemical and Biomedical Engineering
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Semiconductors
• Online Access: https://hdl.handle.net/10356/85256; http://hdl.handle.net/10220/17220
• Institution: Nanyang Technological University

Brominated single-walled carbon nanotubes, with bromine covalently attached to the nanotube surface, have been synthesized by a mild reaction using n-bromosuccinimide (NBS). The latter preferentially attacks metallic single walled carbon nanotubes (SWNTs) over semiconducting ones, and the attached B...