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Published on: February 5, 2017
Photocatalytic engineering of single-walled carbon nanotubes: from metal-to-semiconductor conversion to cutting and
Yufeng Nie1, Liming Zhang, Di Wu
1Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China.
Abstract:
With a TiO2 -based photocatalytic approach, both an arbitrary geometry tailoring of single-walled carbon nanotubes (SWCNTs) on various substrates and the conversion of metallic to semiconducting SWCNTs are demonstrated. Taking advantage of the selectivity on the diameter and metallicity of SWCNTs, 100% depletable SWCNT-based field-effect transistors are achieved, with Ion /Ioff improvements up to five orders of magnitude.
