ORCID Profile
0000-0003-0146-1557
Current Organisation
University of British Columbia
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Publisher: Springer Science and Business Media LLC
Date: 03-07-2012
DOI: 10.1557/JMR.2012.198
Publisher: AIP Publishing
Date: 20-10-2008
DOI: 10.1063/1.2999590
Abstract: Contact resistance has a significant impact on the electrical characteristics of thin film transistors. It limits their maximum on-current and affects their subsequent behavior with bias. This distorts the extracted device parameters, in particular, the field-effect mobility. This letter presents a method capable of accounting for both the non-ohmic (nonlinear) and ohmic (linear) contact resistance effects solely based upon terminal I-V measurements. Applying our analysis to a nanocrystalline silicon thin film transistor, we demonstrate that contact resistance effects can lead to a twofold underestimation of the field-effect mobility.
Publisher: American Association for the Advancement of Science (AAAS)
Date: 03-12-2021
Abstract: A light weight, economic, and high–energy density Zn/MnO 2 fiber battery was integrated with a textile body area network.
Publisher: Elsevier BV
Date: 08-2012
Publisher: IEEE
Date: 10-2011
Publisher: Springer Science and Business Media LLC
Date: 2012
Abstract: Zinc oxide (ZnO) nanowires (NW) are grown on both silicon and sapphire substrates using conventional chemical vapor deposition (CVD) system. As-grown nanostructures are characterized by scanning electron microscope (SEM), X-ray diffraction (XRD) as well as energy dispersive spectroscopy (EDS) and the results confirm high-quality c-axis growth of single-crystalline zinc oxide nanowires. Nanowire are dispersed in solvent and then placed between micro-patterned gold electrodes fabricated on silicon wafers using low cost and scalable dielectrophoresis (DEP) process for fabrication of oxygen and humidity sensors. These sensors are characterized in a vacuum chamber connected to a semiconductor analyzer. Current-voltage characteristics of each device are systematically investigated under different hydrostatic pressure of various gaseous environments such as nitrogen, argon, dry and humid air. It is observed that the electrical conductivity of the nanowires is significantly dependent on the number of oxygen and water molecules adsorbed to the surface of the metal oxide nanowire. These results are critical for development of low cost metal oxide sensors for high performance ubiquitous environmental sensors of oxygen and humidity.
No related grants have been discovered for Peyman Servati.