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

该项目将研究监测大气气体的新装置结构，这将有望导致新的简单和低成本的装置。新结构将利用催化剂吸附氧化物管理信息系统配置。检测将基于在气体吸附时MIS型结构的吸附氧化物中的离子电荷密度和/或电荷重新分布的变化。几埃厚的催化层将被用来提高气体选择性和降低装置吸附温度。该装置的选择性将使用几个不同的吸附氧化层和/或各种催化层来研究。将对该设备的检测机制的电子过程进行广泛的调查和建模。探讨了外加电场对气体吸附与解吸的影响。

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.