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 |
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Article number | 042111 |
Journal | Applied Physics Letters |
Volume | 93 |
Issue number | 4 |
DOIs | |
State | Published - 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.