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 journalArticlepeer-review

22 Scopus citations

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 languageEnglish
Article number042111
JournalApplied Physics Letters
Volume93
Issue number4
DOIs
StatePublished - 2008

Bibliographical 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.

Fingerprint

Dive into the research topics of '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'. Together they form a unique fingerprint.

Cite this