AlO, Al doped ZnO and SnO encapsulation of randomly oriented ZnO nanowire networks for high performance and stable electrical devices.

Clicks: 392
ID: 46559
2019
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Abstract
Two-dimensional randomly oriented nanowire (NW) networks, also called nanonets (NNs), have remarkable advantages including low-cost integration, good reproducibility and high sensitivity, which make them a promising material for electronic devices. With this work, we focus on the study of ZnO NNs as channel materials in field effect transistors (FETs). In our process, ZnO NWs were assembled in NNs by the liquid filtration method and were integrated in transistors, with the bottom-gate configuration, using simple technological steps. Non-encapsulated devices exhibited state of the art performances but their stability toward air exposure was poor. Using a proper encapsulation of the nanonets, with cheap, abundant and non-toxic oxides, we demonstrate our ability not only to stabilize their electrical properties, but also to enhance performance to values never reach before for ZnO NW-based transistors. Our best FETs exhibit a low Off-current while maintaining a very good On-current, which results in a I /I ratio exceeding 10 for a drain voltage of 5 V. The behavior of these ZnO NN-based FETs was studied for three different encapsulation materials, alumina (AlO), tin oxide (SnO) and Al-doped ZnO (AZO). These results prove that ZnO NNs are highly promising materials for an easy and low-cost integration into FETs.
Reference Key
morisot2019alonanotechnology Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Morisot, F;Nguyen, V H;Montemont, C;Maindron, T;Muñoz-Rojas, D;Mouis, M;Langlet, M;Ternon, C;
Journal Nanotechnology
Year 2019
DOI
10.1088/1361-6528/ab2aa5
URL
Keywords
cooperation competition community function species diversity stress gradient hypothesis

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