Research Initiation Award: Investigation of Catalyst - Adsorptive Oxide MIS Structure for Gases Detection

这个项目将研究新的设备结构来监测大气气体，这将有望导致新的简单和低成本的设备。新结构将利用催化剂-吸附氧化物MIS配置。检测将基于离子电荷密度的变化和/或在气体吸附时MIS结构的吸附氧化物中的电荷重新分布。采用几埃厚度的催化剂层来提高气体选择性和降低装置的吸附温度。将使用几种不同的吸附氧化物层和/或多种催化剂层来研究该装置的选择性。该装置的检测机制的电子过程将被广泛研究和建模。探讨外加电场对装置气体吸附和解吸的影响。

This project will investigate new device structures to monitor atmospheric gases, which will hopefully lead towards new simple and low-cost devices. The new structure will utilize a catalyst- adsorptive oxide MIS configuration. Detection will be based on changes in ionic charge density and/or charge redistribution in the adsorptive oxide of the MIS structure upon gas adsorption. A catalyst layer of several angstrom thickness will be used to enhance gas selectivity and lower device adsorption temperature. The selectivity of the device will be investigated using several different adsorptive oxide layers and/or a variety of catalyst layers. The electronic process of the device's detecting mechanism will be extensively investigated and modeled. The effect of applied electric field on the device's adsorption and desorption of gases will be explored.