title: Growth of semiconducting single-walled carbon nanotubes by using ceria as catalyst supports.
abstract: The growth of semiconducting single-walled carbon nanotubes (s-SWNTs) on flat substrates is essential for the application of SWNTs in electronic and optoelectronic devices. We developed a flexible strategy to selectively grow s-SWNTs on silicon substrates using a ceria-supported iron or cobalt catalysts. Ceria, which stores active oxygen, plays a crucial role in the selective growth process by inhibiting the formation of metallic SWNTs via oxidation. The so-produced ultralong s-SWNT arrays are immediately ready for building field effect transistors.
authors.affiliation: Key Laboratory for the Physics and Chemistry of Nanodevices, ‡Beijing National Laboratory for Molecular Science, College of Chemistry and Molecular Engineering, and §State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University , Beijing 100871, China.
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Qin
authors.forename: Fei
authors.initials: F
authors.lastname: Peng
authors.forename: Feng
authors.initials: F
authors.lastname: Yang
authors.forename: Xiaohui
authors.initials: X
authors.lastname: He
authors.forename: Huixin
authors.initials: H
authors.lastname: Huang
authors.forename: Da
authors.initials: D
authors.lastname: Luo
authors.forename: Juan
authors.initials: J
authors.lastname: Yang
authors.forename: Sheng
authors.initials: S
authors.lastname: Wang
authors.forename: Haichao
authors.initials: H
authors.lastname: Liu
authors.forename: Lianmao
authors.initials: L
authors.lastname: Peng
authors.forename: Yan
authors.initials: Y
authors.lastname: Li