Aging-Dependent Electrical Properties in Polymer-Passivated ZnO Nanowire Field Effect Transistors

作者：Hong Woong Ki^*

来源：ECS Solid State Letters, 2015, 4(4): Q17-Q20.

DOI：10.1149/2.0081504ssl

Aging-dependent electrical properties in poly(methyl methacrylate) (PMMA)-passivated ZnO nanowire field effect transistors, which show an enhancement-mode behavior, were investigated. The electrical characteristics of the devices were systematically measured and compared before and after storage in a vacuum desiccator for 8 months. The electrical properties of the aged devices, such as mobility, subthreshold swing, and carrier density, were greatly improved compared with those of the as-fabricated devices. This can be attributed to desorption effects of adsorbed molecules on the nanowire surface in which the adsorbed molecules can transport through a PMMA passivation layer under vacuum.

• 出版日期2015