title: Why aggregated carbon nanotubes exhibit low quantum efficiency.
abstract: Aggregation of carbon nanotubes reduces quantum efficiency and the phenomenon is found to be related to photocurrent leakage through oxygenated lattices acting as low barrier intertube channels. This outcome is supported by calculation and optical excitation experiments.
authors.affiliation: Department of Materials Science and Engineering, National Tsing Hua University, HsinChu 30013, Taiwan.
authors.forename: Yu-Hsien
authors.initials: YH
authors.lastname: Lin
authors.forename: Yao-Cheng
authors.initials: YC
authors.lastname: Lai
authors.forename: Ching-Tung
authors.initials: CT
authors.lastname: Hsu
authors.forename: Chia-Jung
authors.initials: CJ
authors.lastname: Hu
authors.forename: Wen-Kuang
authors.initials: WK
authors.lastname: Hsu