Enhanced electrical conductivity in poly(3-hexylthiophene)/fluorinated tetracyanoquinodimethane nanowires grown with a porous alumina template

Jianchen Hu; Kendal W. Clark; Ryoma Hayakawa; An Ping Li; Yutaka Wakayama

doi:10.1021/la304499k

Enhanced electrical conductivity in poly(3-hexylthiophene)/fluorinated tetracyanoquinodimethane nanowires grown with a porous alumina template

Jianchen Hu, Kendal W. Clark, Ryoma Hayakawa, An Ping Li, Yutaka Wakayama

Scanning Tunneling Microscopy Group

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

18 Scopus citations

Abstract

We report on improved electrical conductivity in poly(3-hexylthiophene) (P3HT)/2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ) composite nanowires grown using an anodized aluminum oxide (AAO) template. The electrical conductivity of individual nanowire measured by four-probe scanning tunneling microscopy shows that F4-TCNQ molecules are effectively doped into P3HT by capillary force. The resistivity is tuned in the 0.1-10 Ω cm range by changing the F4-TCNQ concentration from 10 to 0.1 wt % and is 2-4 orders of magnitude smaller than that of the corresponding P3HT/F4-TNCQ thin film composites. The AAO template-assisted synthesis approach thus appears to be effective for high chemical doping and for improving the electrical conductivity of the molecular wires.

Original language	English
Pages (from-to)	7266-7270
Number of pages	5
Journal	Langmuir
Volume	29
Issue number	24
DOIs	https://doi.org/10.1021/la304499k
State	Published - Jun 18 2013

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title = "Enhanced electrical conductivity in poly(3-hexylthiophene)/fluorinated tetracyanoquinodimethane nanowires grown with a porous alumina template",

abstract = "We report on improved electrical conductivity in poly(3-hexylthiophene) (P3HT)/2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ) composite nanowires grown using an anodized aluminum oxide (AAO) template. The electrical conductivity of individual nanowire measured by four-probe scanning tunneling microscopy shows that F4-TCNQ molecules are effectively doped into P3HT by capillary force. The resistivity is tuned in the 0.1-10 Ω cm range by changing the F4-TCNQ concentration from 10 to 0.1 wt % and is 2-4 orders of magnitude smaller than that of the corresponding P3HT/F4-TNCQ thin film composites. The AAO template-assisted synthesis approach thus appears to be effective for high chemical doping and for improving the electrical conductivity of the molecular wires.",

author = "Jianchen Hu and Clark, {Kendal W.} and Ryoma Hayakawa and Li, {An Ping} and Yutaka Wakayama",

year = "2013",

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doi = "10.1021/la304499k",

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T1 - Enhanced electrical conductivity in poly(3-hexylthiophene)/fluorinated tetracyanoquinodimethane nanowires grown with a porous alumina template

AU - Hu, Jianchen

AU - Clark, Kendal W.

AU - Hayakawa, Ryoma

AU - Li, An Ping

AU - Wakayama, Yutaka

PY - 2013/6/18

Y1 - 2013/6/18

N2 - We report on improved electrical conductivity in poly(3-hexylthiophene) (P3HT)/2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ) composite nanowires grown using an anodized aluminum oxide (AAO) template. The electrical conductivity of individual nanowire measured by four-probe scanning tunneling microscopy shows that F4-TCNQ molecules are effectively doped into P3HT by capillary force. The resistivity is tuned in the 0.1-10 Ω cm range by changing the F4-TCNQ concentration from 10 to 0.1 wt % and is 2-4 orders of magnitude smaller than that of the corresponding P3HT/F4-TNCQ thin film composites. The AAO template-assisted synthesis approach thus appears to be effective for high chemical doping and for improving the electrical conductivity of the molecular wires.

AB - We report on improved electrical conductivity in poly(3-hexylthiophene) (P3HT)/2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ) composite nanowires grown using an anodized aluminum oxide (AAO) template. The electrical conductivity of individual nanowire measured by four-probe scanning tunneling microscopy shows that F4-TCNQ molecules are effectively doped into P3HT by capillary force. The resistivity is tuned in the 0.1-10 Ω cm range by changing the F4-TCNQ concentration from 10 to 0.1 wt % and is 2-4 orders of magnitude smaller than that of the corresponding P3HT/F4-TNCQ thin film composites. The AAO template-assisted synthesis approach thus appears to be effective for high chemical doping and for improving the electrical conductivity of the molecular wires.

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Enhanced electrical conductivity in poly(3-hexylthiophene)/fluorinated tetracyanoquinodimethane nanowires grown with a porous alumina template

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