Stable and controlled amphoteric doping by encapsulation of organic molecules inside carbon nanotubes

Taishi Takenobu, Takumi Takano, Masashi Shiraishi, Yousuke Murakami, Masafumi Ata, Hiromichi Kataura, Yohji Achiba, Yoshihiro Iwasa

Research output: Contribution to journalArticle

430 Citations (Scopus)

Abstract

Single-walled carbon nanotubes (SWNTs) have strong potential for molecular electronics, owing to their unique structural and electronic properties. However, various outstanding issues still need to be resolved before SWNT-based devices can be made. In particular, large-scale, air-stable and controlled doping is highly desirable. Here we present a method for integrating organic molecules into SWNTs that promises to push the performance limit of these materials for molecular electronics. Reaction of SWNTs with molecules having large electron affinity and small ionization energy achieved p- and n-type doping, respectively. Optical characterization revealed that charge transfer between SWNTs and molecules starts at certain critical energies. X-ray diffraction experiments revealed that molecules are predominantly encapsulated inside SWNTs, resuming in an improved stability in air. The simplicity of the synthetic process offers a viable route for the large-scale production of SWNTs with controlled doping states.

Original languageEnglish
Pages (from-to)683-688
Number of pages6
JournalNature Materials
Volume2
Issue number10
DOIs
Publication statusPublished - 2003 Oct
Externally publishedYes

Fingerprint

Carbon Nanotubes
Single-walled carbon nanotubes (SWCN)
Encapsulation
Carbon nanotubes
carbon nanotubes
Doping (additives)
Molecules
molecules
Molecular electronics
molecular electronics
Electron affinity
Ionization potential
air
Air
electron affinity
Electronic properties
Charge transfer
Structural properties
routes
charge transfer

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Takenobu, T., Takano, T., Shiraishi, M., Murakami, Y., Ata, M., Kataura, H., ... Iwasa, Y. (2003). Stable and controlled amphoteric doping by encapsulation of organic molecules inside carbon nanotubes. Nature Materials, 2(10), 683-688. https://doi.org/10.1038/nmat976

Stable and controlled amphoteric doping by encapsulation of organic molecules inside carbon nanotubes. / Takenobu, Taishi; Takano, Takumi; Shiraishi, Masashi; Murakami, Yousuke; Ata, Masafumi; Kataura, Hiromichi; Achiba, Yohji; Iwasa, Yoshihiro.

In: Nature Materials, Vol. 2, No. 10, 10.2003, p. 683-688.

Research output: Contribution to journalArticle

Takenobu, T, Takano, T, Shiraishi, M, Murakami, Y, Ata, M, Kataura, H, Achiba, Y & Iwasa, Y 2003, 'Stable and controlled amphoteric doping by encapsulation of organic molecules inside carbon nanotubes', Nature Materials, vol. 2, no. 10, pp. 683-688. https://doi.org/10.1038/nmat976
Takenobu T, Takano T, Shiraishi M, Murakami Y, Ata M, Kataura H et al. Stable and controlled amphoteric doping by encapsulation of organic molecules inside carbon nanotubes. Nature Materials. 2003 Oct;2(10):683-688. https://doi.org/10.1038/nmat976
Takenobu, Taishi ; Takano, Takumi ; Shiraishi, Masashi ; Murakami, Yousuke ; Ata, Masafumi ; Kataura, Hiromichi ; Achiba, Yohji ; Iwasa, Yoshihiro. / Stable and controlled amphoteric doping by encapsulation of organic molecules inside carbon nanotubes. In: Nature Materials. 2003 ; Vol. 2, No. 10. pp. 683-688.
@article{b483a56a1e944d4fb06799cccf8e990e,
title = "Stable and controlled amphoteric doping by encapsulation of organic molecules inside carbon nanotubes",
abstract = "Single-walled carbon nanotubes (SWNTs) have strong potential for molecular electronics, owing to their unique structural and electronic properties. However, various outstanding issues still need to be resolved before SWNT-based devices can be made. In particular, large-scale, air-stable and controlled doping is highly desirable. Here we present a method for integrating organic molecules into SWNTs that promises to push the performance limit of these materials for molecular electronics. Reaction of SWNTs with molecules having large electron affinity and small ionization energy achieved p- and n-type doping, respectively. Optical characterization revealed that charge transfer between SWNTs and molecules starts at certain critical energies. X-ray diffraction experiments revealed that molecules are predominantly encapsulated inside SWNTs, resuming in an improved stability in air. The simplicity of the synthetic process offers a viable route for the large-scale production of SWNTs with controlled doping states.",
author = "Taishi Takenobu and Takumi Takano and Masashi Shiraishi and Yousuke Murakami and Masafumi Ata and Hiromichi Kataura and Yohji Achiba and Yoshihiro Iwasa",
year = "2003",
month = "10",
doi = "10.1038/nmat976",
language = "English",
volume = "2",
pages = "683--688",
journal = "Nature Materials",
issn = "1476-1122",
publisher = "Nature Publishing Group",
number = "10",

}

TY - JOUR

T1 - Stable and controlled amphoteric doping by encapsulation of organic molecules inside carbon nanotubes

AU - Takenobu, Taishi

AU - Takano, Takumi

AU - Shiraishi, Masashi

AU - Murakami, Yousuke

AU - Ata, Masafumi

AU - Kataura, Hiromichi

AU - Achiba, Yohji

AU - Iwasa, Yoshihiro

PY - 2003/10

Y1 - 2003/10

N2 - Single-walled carbon nanotubes (SWNTs) have strong potential for molecular electronics, owing to their unique structural and electronic properties. However, various outstanding issues still need to be resolved before SWNT-based devices can be made. In particular, large-scale, air-stable and controlled doping is highly desirable. Here we present a method for integrating organic molecules into SWNTs that promises to push the performance limit of these materials for molecular electronics. Reaction of SWNTs with molecules having large electron affinity and small ionization energy achieved p- and n-type doping, respectively. Optical characterization revealed that charge transfer between SWNTs and molecules starts at certain critical energies. X-ray diffraction experiments revealed that molecules are predominantly encapsulated inside SWNTs, resuming in an improved stability in air. The simplicity of the synthetic process offers a viable route for the large-scale production of SWNTs with controlled doping states.

AB - Single-walled carbon nanotubes (SWNTs) have strong potential for molecular electronics, owing to their unique structural and electronic properties. However, various outstanding issues still need to be resolved before SWNT-based devices can be made. In particular, large-scale, air-stable and controlled doping is highly desirable. Here we present a method for integrating organic molecules into SWNTs that promises to push the performance limit of these materials for molecular electronics. Reaction of SWNTs with molecules having large electron affinity and small ionization energy achieved p- and n-type doping, respectively. Optical characterization revealed that charge transfer between SWNTs and molecules starts at certain critical energies. X-ray diffraction experiments revealed that molecules are predominantly encapsulated inside SWNTs, resuming in an improved stability in air. The simplicity of the synthetic process offers a viable route for the large-scale production of SWNTs with controlled doping states.

UR - http://www.scopus.com/inward/record.url?scp=0142090810&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0142090810&partnerID=8YFLogxK

U2 - 10.1038/nmat976

DO - 10.1038/nmat976

M3 - Article

C2 - 12958593

AN - SCOPUS:0142090810

VL - 2

SP - 683

EP - 688

JO - Nature Materials

JF - Nature Materials

SN - 1476-1122

IS - 10

ER -