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Research Article| December 07 2009

Freestanding, bendable thin film for supercapacitors using DNA-dispersed double walled carbon nanotubes

Leora Cooper;

Leora Cooper

1Department of Chemical and Biomolecular Engineering,

University of Pennsylvania

, 220 South 33rd St., Philadelphia, Pennsylvania 19104,

USA

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Hiroki Amano;

Hiroki Amano

2Faculty of Engineering,

Shinshu University

, 4-17-1 Wakasato, Nagano 380-8553,

Japan

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Masayuki Hiraide;

Masayuki Hiraide

2Faculty of Engineering,

Shinshu University

, 4-17-1 Wakasato, Nagano 380-8553,

Japan

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Satoshi Houkyou;

Satoshi Houkyou

2Faculty of Engineering,

Shinshu University

, 4-17-1 Wakasato, Nagano 380-8553,

Japan

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In Young Jang;

In Young Jang

2Faculty of Engineering,

Shinshu University

, 4-17-1 Wakasato, Nagano 380-8553,

Japan

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Yong Jung Kim;

Yong Jung Kim

3Institute of Carbon Science and Technology,

Shinshu University

, 4-17-1 Wakasato, Nagano-shi 380-8553,

Japan

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Hiroyuki Muramatsu;

Hiroyuki Muramatsu

3Institute of Carbon Science and Technology,

Shinshu University

, 4-17-1 Wakasato, Nagano-shi 380-8553,

Japan

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Jin Hee Kim;

Jin Hee Kim

2Faculty of Engineering,

Shinshu University

, 4-17-1 Wakasato, Nagano 380-8553,

Japan

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Takuya Hayashi;

Takuya Hayashi

2Faculty of Engineering,

Shinshu University

, 4-17-1 Wakasato, Nagano 380-8553,

Japan

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Yoong Ahm Kim;

Yoong Ahm Kim ^a)

2Faculty of Engineering,

Shinshu University

, 4-17-1 Wakasato, Nagano 380-8553,

Japan

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Morinobu Endo;

Morinobu Endo

2Faculty of Engineering,

Shinshu University

, 4-17-1 Wakasato, Nagano 380-8553,

Japan

3Institute of Carbon Science and Technology,

Shinshu University

, 4-17-1 Wakasato, Nagano-shi 380-8553,

Japan

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Mildred S. Dresselhaus

Mildred S. Dresselhaus

4

Massachusetts Institute of Technology

, Cambridge, Massachusetts 02139-4307,

USA

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Author & Article Information

Leora Cooper ¹

,

Hiroki Amano ²

,

Masayuki Hiraide ²

,

Satoshi Houkyou ²

,

In Young Jang ²

,

Yong Jung Kim ³

,

Hiroyuki Muramatsu ³

,

Jin Hee Kim ²

,

Takuya Hayashi ²

,

Yoong Ahm Kim ^2,a)

,

Morinobu Endo ^2,3

,

Mildred S. Dresselhaus ⁴

1Department of Chemical and Biomolecular Engineering,

University of Pennsylvania

, 220 South 33rd St., Philadelphia, Pennsylvania 19104,

USA

2Faculty of Engineering,

Shinshu University

, 4-17-1 Wakasato, Nagano 380-8553,

Japan

3Institute of Carbon Science and Technology,

Shinshu University

, 4-17-1 Wakasato, Nagano-shi 380-8553,

Japan

4

Massachusetts Institute of Technology

, Cambridge, Massachusetts 02139-4307,

USA

Author to whom correspondence should be addressed. Electronic mail: [email protected]. Tel.: +81-26-269-5212. FAX: +81-26-269-5208.

Appl. Phys. Lett. 95, 233104 (2009)

https://doi.org/10.1063/1.3271768

Freestanding, thin, and bendable electrodes for supercapacitors are fabricated by filtering DNA-dispersed double walled carbon nanotubes (DWNTs) into a thin film and thermally treating the film in argon. We found that DNA has the ability to disperse the strongly bundled DWNTs and is converted to phosphorus-enriched carbons, which give rise to strong redox peaks at around 0.4 V. The combination of the large capacitance from the DNA-derived carbons and the high electrical conductivity of carbon nanotubes allow DWNT/DNA films to be used as a potential electrode material for supercapacitors.

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© 2009 American Institute of Physics.

2009

American Institute of Physics

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