A direct measurement of the local resistances in a ZnO tetrapod by means of impedance spectroscopy: The role of the junction in the overall resistance

Junghwan Huh; Gyu Tae Kim; Jong Soo Lee; Sangtae Kim

doi:10.1063/1.2963483

A direct measurement of the local resistances in a ZnO tetrapod by means of impedance spectroscopy: The role of the junction in the overall resistance

Junghwan Huh, Gyu Tae Kim, Jong Soo Lee, Sangtae Kim

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

19 Citations (Scopus)

Abstract

We have measured the local resistances in the arms and at the junction in a ZnO tetrapod separately by means of ac impedance spectroscopy. The resistance at the junction is found to be even greater than that in the arms although a volume fraction of the junction is negligibly small compared to that of the arms. This result clearly demonstrates that the junction plays a decisive role in the overall electrical property of the ZnO-tetrapod and thus determines the functionality of the ZnO tetrapod electronic devices.

Original language	English
Article number	042111
Journal	Applied Physics Letters
Volume	93
Issue number	4
DOIs	https://doi.org/10.1063/1.2963483
Publication status	Published - 2008

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "A direct measurement of the local resistances in a ZnO tetrapod by means of impedance spectroscopy: The role of the junction in the overall resistance",

abstract = "We have measured the local resistances in the arms and at the junction in a ZnO tetrapod separately by means of ac impedance spectroscopy. The resistance at the junction is found to be even greater than that in the arms although a volume fraction of the junction is negligibly small compared to that of the arms. This result clearly demonstrates that the junction plays a decisive role in the overall electrical property of the ZnO-tetrapod and thus determines the functionality of the ZnO tetrapod electronic devices.",

author = "Junghwan Huh and Kim, {Gyu Tae} and Lee, {Jong Soo} and Sangtae Kim",

note = "Funding Information: G.T.K. is grateful for the support from the Korea Science and Engineering Foundation [KOSEF, No. R01-2005-000-10648 (2007)] and from Nano R&D program (2005–02369) funded by the Ministry of Science and Technology of Korea.",

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AU - Lee, Jong Soo

AU - Kim, Sangtae

N1 - Funding Information: G.T.K. is grateful for the support from the Korea Science and Engineering Foundation [KOSEF, No. R01-2005-000-10648 (2007)] and from Nano R&D program (2005–02369) funded by the Ministry of Science and Technology of Korea.

PY - 2008

Y1 - 2008

N2 - We have measured the local resistances in the arms and at the junction in a ZnO tetrapod separately by means of ac impedance spectroscopy. The resistance at the junction is found to be even greater than that in the arms although a volume fraction of the junction is negligibly small compared to that of the arms. This result clearly demonstrates that the junction plays a decisive role in the overall electrical property of the ZnO-tetrapod and thus determines the functionality of the ZnO tetrapod electronic devices.

AB - We have measured the local resistances in the arms and at the junction in a ZnO tetrapod separately by means of ac impedance spectroscopy. The resistance at the junction is found to be even greater than that in the arms although a volume fraction of the junction is negligibly small compared to that of the arms. This result clearly demonstrates that the junction plays a decisive role in the overall electrical property of the ZnO-tetrapod and thus determines the functionality of the ZnO tetrapod electronic devices.

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A direct measurement of the local resistances in a ZnO tetrapod by means of impedance spectroscopy: The role of the junction in the overall resistance

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