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Synthèse et propriétés de monocristaux, de poudres, films minces ou hétérostructures

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Review: polarité et piezoelectricité dans le ZnO

Publié le 26 janvier 2021
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Publication - Parution du 20 janvier 2021 au 22 avril 2021

Le papier "Polarity in ZnO nanowires: A critical issue for piezotronic and piezoelectric devices" a été publié dans Nano Energy

Piezo_polarite

Piezo_polarite

Ici vous trouverez le review par Vincent Consonni
"The polar and piezoelectric nature of the wurtzite structure of ZnO nanowires with a high aspect ratio at nanoscale dimensions is of high interest for piezotronic and piezoelectric devices, but a number of issues related to polarity are still open and deserve a particular attention. In this context, chemical bath deposition offers a unique opportunity to select the O- or Zn-polarity of the resultant nanowires and is further compatible with the fabrication processes of flexible devices. The control and use of the polarity in ZnO nanowires grown by chemical bath deposition open a new way to greatly enhance the performance of the related piezotronic and piezoelectric devices. However, polarity as an additional tunable parameter should be considered with care because it has a strong influence on many processes and properties. The present review is intended to report the most important consequences related to the polarity in ZnO nanowires for piezotronic and piezoelectric devices. After introducing the basic principles involving crystal polarity in ZnO, a special emphasis is placed on the effects of polarity on the nucleation and growth mechanisms of ZnO nanowires using chemical bath deposition, defect incorporation and doping, electrical contacts and device properties.."


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mise à jour le 26 janvier 2021

  • Tutelle CNRS
  • Tutelle Grenoble INP
Université Grenoble Alpes