Resistive switching WOx-Au core-shell nanowires with unexpected nonwetting stability even when submerged under water

Seunghyup Lee; Junghan Lee; Jinjoo Park; Youngwoo Choi; Kijung Yong

doi:10.1002/adma.201200068

Resistive switching WOx-Au core-shell nanowires with unexpected nonwetting stability even when submerged under water

Adv Mater. 2012 May 8;24(18):2418-23. doi: 10.1002/adma.201200068. Epub 2012 Apr 10.

Authors

Seunghyup Lee¹, Junghan Lee, Jinjoo Park, Youngwoo Choi, Kijung Yong

Affiliation

¹ Surface Chemistry Laboratory of Electronic Materials, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Korea.

PMID: 22488845
DOI: 10.1002/adma.201200068

Abstract

The resistive switching (RS) characteristics of a tungsten oxide (WO(x) )-Au core-shell nanowire device array is demonstrated for the first time. In addition to the stable bipolar RS characteristics, the nanowire structure of our RS devices provides superhydrophobic properties. The superhydrophobic RS nanowires repelled water that was poured over, such that the device was protected from failure by water contact-driven leakage currents. Moreover, surprisingly, the devices still work even with when the device is submerged underwater.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electrodes
Gold / chemistry*
Hydrophobic and Hydrophilic Interactions
Nanowires / chemistry*
Oxides / chemistry*
Thermodynamics
Tungsten / chemistry*
Water / chemistry

Substances

Oxides
Water
Gold
tungsten oxide
Tungsten