Electrical conduction through linear porphyrin arrays

Dae Hwan Yoon, Sun Bae Lee, K. H. Yoo, Jinhee Kim, Jong Kuk Lim, Naoki Aratani, Akihiko Tsuda, Atsuhiro Osuka, Dongho Kim

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

Electrical conduction measurements were made on two extreme types of directly linked porphyrin arrays by using nanoelectrodes. One type is the directly linked Zn(II)porphyrin arrays, consisting of 48 Zn(II)porphyrin moieties (Z48), and the other type is the completely flat, tape-shaped Zn(II)porphyrin arrays, consisting of eight Zn(II)porphyrin units (T8). The I-V curve for Z48 exhibits the diode-like behavior and the hysteresis depending on the voltage sweep direction presumably due to the conformational heterogeneity arising from the dihedral angle distribution in Z48. On the other hand, the I-V curve for T8 is nearly symmetric without any hysteresis, leading to the higher conductivity and the smaller band gap. These results illustrate that the stronger π-electron conjugation in T8, as compared with that of Z48, results in better electrical conduction.

Original languageEnglish
Pages (from-to)11062-11064
Number of pages3
JournalJournal of the American Chemical Society
Volume125
Issue number36
DOIs
Publication statusPublished - 2003 Sep 10

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Porphyrins
Hysteresis
Dihedral angle
Tapes
Diodes
Energy gap
Electrons
Electric potential

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Yoon, Dae Hwan ; Lee, Sun Bae ; Yoo, K. H. ; Kim, Jinhee ; Lim, Jong Kuk ; Aratani, Naoki ; Tsuda, Akihiko ; Osuka, Atsuhiro ; Kim, Dongho. / Electrical conduction through linear porphyrin arrays. In: Journal of the American Chemical Society. 2003 ; Vol. 125, No. 36. pp. 11062-11064.
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Yoon, DH, Lee, SB, Yoo, KH, Kim, J, Lim, JK, Aratani, N, Tsuda, A, Osuka, A & Kim, D 2003, 'Electrical conduction through linear porphyrin arrays', Journal of the American Chemical Society, vol. 125, no. 36, pp. 11062-11064. https://doi.org/10.1021/ja0346429

Electrical conduction through linear porphyrin arrays. / Yoon, Dae Hwan; Lee, Sun Bae; Yoo, K. H.; Kim, Jinhee; Lim, Jong Kuk; Aratani, Naoki; Tsuda, Akihiko; Osuka, Atsuhiro; Kim, Dongho.

In: Journal of the American Chemical Society, Vol. 125, No. 36, 10.09.2003, p. 11062-11064.

Research output: Contribution to journalArticle

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AU - Yoon, Dae Hwan

AU - Lee, Sun Bae

AU - Yoo, K. H.

AU - Kim, Jinhee

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AU - Aratani, Naoki

AU - Tsuda, Akihiko

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AU - Kim, Dongho

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