title: Realization of Interlinked ZnO Tetrapod Networks for UV Sensor and Room-Temperature Gas Sensor.
abstract: 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.
authors.forename: Meechai
authors.initials: M
authors.lastname: Thepnurat
authors.forename: Torranin
authors.initials: T
authors.lastname: Chairuangsri
authors.affiliation: School of Science, University of Phayao , Phayao 56000, Thailand.
authors.forename: Niyom
authors.initials: N
authors.lastname: Hongsith
authors.forename: Pipat
authors.initials: P
authors.lastname: Ruankham
authors.forename: Supab
authors.initials: S
authors.lastname: Choopun
keywords: ZnO; gas sensor; nanostructure; tetrapod; thermal oxidation