Here, interlinked ZnO tetrapod networks (ITN-ZnO) have been
realized by using microwave-assisted thermal oxidation. With this simple and
fast process, a nanostructured ZnO morphology having tetrapodlike features with
leg-to-leg linking is obtained.
The electrical and ethanol-sensing properties related to the
morphology of ITN-ZnO compared with those of other ZnO morphologies have also
been investigated. It has been found that ITN-ZnO unexpectedly exhibits
superior electrical and gas-sensing properties in terms of providing pathways
for electron transport to the electrode.
A UV sensor and a room-temperature gas sensor with improved
performance are achieved. Therefore, ITN-ZnO is an attractive morphology of ZnO
that is applicable for many new applications because of its novel properties.
The novel properties of ITN-ZnO are beneficial for electronic, photonic,
optoelectronic, and sensing applications. ITN-ZnO may provide a means to
improve the devices based on ITN-ZnO.
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