title: Selective interaction of large or charge-transfer aromatic molecules with metallic single-wall carbon nanotubes: critical role of the molecular size and orientation.
abstract: Using first principles calculations, we report for the first time that large nearly neutral aromatic molecules, such as naphthalene and anthracene, and small charge-transfer aromatic molecules, such as TCNQ and DDQ, interact more strongly with metallic single-wall carbon nanotubes (SWNTs) versus their semiconducting counterparts as the molecular orientation of DDQ is taken into account. Hence two new mechanisms for separating metallic and semiconducting SWNTs via noncovalent pi-pi stacking or charge-transfer interaction are suggested.
authors.affiliation: Mesoscopic Physics Laboratory, Department of Physics, Peking University, Beijing 100871, PR China. jinglu@pku.edu.cn
authors.forename: Jing
authors.initials: J
authors.lastname: Lu
authors.forename: Shigeru
authors.initials: S
authors.lastname: Nagase
authors.forename: Xinwei
authors.initials: X
authors.lastname: Zhang
authors.forename: Dan
authors.initials: D
authors.lastname: Wang
authors.forename: Ming
authors.initials: M
authors.lastname: Ni
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Maeda
authors.forename: Takatsugu
authors.initials: T
authors.lastname: Wakahara
authors.forename: Tsukasa
authors.initials: T
authors.lastname: Nakahodo
authors.forename: Takahiro
authors.initials: T
authors.lastname: Tsuchiya
authors.forename: Takeshi
authors.initials: T
authors.lastname: Akasaka
authors.forename: Zhengxiang
authors.initials: Z
authors.lastname: Gao
authors.forename: Dapeng
authors.initials: D
authors.lastname: Yu
authors.forename: Hengqiang
authors.initials: H
authors.lastname: Ye
authors.forename: W N
authors.initials: WN
authors.lastname: Mei
authors.forename: Yunsong
authors.initials: Y
authors.lastname: Zhou