Effect of SOCl2 doping on electronic properties of single-walled carbon nanotube thin film transistors

D. H. Kim; J. K. Lee; J. H. Huh; Y. H. Kim; G. T. Kim; S. Roth; U. Dettlaff-Weglikowska

doi:10.1002/pssb.201100106

Effect of SOCl₂ doping on electronic properties of single-walled carbon nanotube thin film transistors

D. H. Kim, J. K. Lee, J. H. Huh, Y. H. Kim, G. T. Kim, S. Roth, U. Dettlaff-Weglikowska

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

We report on SOCl₂ doping of separated single-walled carbon nanotubes (SWCNTs) having different properties (metallic, semiconducting, and mixed). SWCNTs were doped by dropping SOCl₂ on a percolated network which was prepared on a Si substrate and the doping effect was evaluated by measuring electrical characteristics. Pristine semiconducting SWCNTs showed p-type transfer characteristics. After SOCl₂ doping, the conductivity of semiconducting SWCNTs increased about two times and the on/off ratio decreased by a factor of 3. Mixed pristine samples showed slight p-type characteristics and turned to metallic characteristics after doping. The network of metallic SWCNTs did not show any significant change of conductivity before and after doping.

Original language	English
Pages (from-to)	2668-2671
Number of pages	4
Journal	Physica Status Solidi (B) Basic Research
Volume	248
Issue number	11
DOIs	https://doi.org/10.1002/pssb.201100106
Publication status	Published - 2011 Nov

Keywords

Doping
P-type
Swcnts

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1002/pssb.201100106

Cite this

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title = "Effect of SOCl2 doping on electronic properties of single-walled carbon nanotube thin film transistors",

abstract = "We report on SOCl2 doping of separated single-walled carbon nanotubes (SWCNTs) having different properties (metallic, semiconducting, and mixed). SWCNTs were doped by dropping SOCl2 on a percolated network which was prepared on a Si substrate and the doping effect was evaluated by measuring electrical characteristics. Pristine semiconducting SWCNTs showed p-type transfer characteristics. After SOCl2 doping, the conductivity of semiconducting SWCNTs increased about two times and the on/off ratio decreased by a factor of 3. Mixed pristine samples showed slight p-type characteristics and turned to metallic characteristics after doping. The network of metallic SWCNTs did not show any significant change of conductivity before and after doping.",

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AU - Kim, D. H.

AU - Lee, J. K.

AU - Huh, J. H.

AU - Kim, Y. H.

AU - Kim, G. T.

AU - Roth, S.

AU - Dettlaff-Weglikowska, U.

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AB - We report on SOCl2 doping of separated single-walled carbon nanotubes (SWCNTs) having different properties (metallic, semiconducting, and mixed). SWCNTs were doped by dropping SOCl2 on a percolated network which was prepared on a Si substrate and the doping effect was evaluated by measuring electrical characteristics. Pristine semiconducting SWCNTs showed p-type transfer characteristics. After SOCl2 doping, the conductivity of semiconducting SWCNTs increased about two times and the on/off ratio decreased by a factor of 3. Mixed pristine samples showed slight p-type characteristics and turned to metallic characteristics after doping. The network of metallic SWCNTs did not show any significant change of conductivity before and after doping.

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