V2O5 nanowire-based nanoelectronic devices for helium detection

Han Young Yu, Byung Hyun Kang, Ung Hwan Pi, Chan Woo Park, Sung Yool Choi, Gyu Tae Kim

Research output: Contribution to journalArticlepeer-review

68 Citations (Scopus)


The electrical responses of vanadium pentoxide nanowires to helium gas and environmental pressures are demonstrated. The devices feature well-aligned nanowires that are oriented by electrophoresis technique in the submicron scale. The electrical conductance is found to increase and decrease upon exposure to helium gas and air, respectively. This electrical response to helium is due to physical adsorption of the helium atoms into the interlayer of vanadium pentoxide nanowires. Furthermore, we observe flow-rate-dependent conductance variations such that the conductance is increased with stepwise behavior to the increase of flow rate of helium.

Original languageEnglish
Article number253102
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Issue number25
Publication statusPublished - 2005

Bibliographical note

Funding Information:
This work was supported by the basic research program of the ETRI and the national research program for the 0.1 Terabit Non-volatile Memory Development sponsored by Korea Ministry of Science and Technology.

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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