Investigation of New Sensor Concept Using Non-Adiabatic Energy Transfer and "Chemicurrent" Production From Gas Adsorption and Reaction on Ultrathin Metal Films

摘要CTS-9820134埃里克麦克法兰/加州大学圣巴巴拉分校教授埃里克麦克法兰将研究的性质时，原子或分子与非常薄的金属薄膜沉积在半导体上的化学-电现象。该研究将检验氢（或氘）在Si（111）上的Ag和Cu膜上的碰撞和吸附导致通过直接能量转移产生激发电子的假设。在此基础上，麦克法兰教授将探索新型氢传感器的概念。此外，该研究将被扩展，并且该概念将被测试与其他气体的吸附和反应，包括O2、CO、CO2、NO2、C2 H2等，在各种温度下作为金属-半导体衬底特性的函数。通过化学吸附和反应产生的电子激发将被验证并用作新的固态气体传感器的基础。该项目将涉及学生和两个合作者，教授。阿鲁纳娃·马宗达和亨利·温伯格。UCSB将分摊设备费用。

AbstractCTS-9820134Eric McFarland/UC-Santa BarbaraProfessor Eric McFarland will investigate the nature of chemo-electric phenomena originating when atoms or molecules interact with very thin metal films deposited on semiconductors. The research will yield a test of the hypothesis that collision and adsorption of hydrogen (or deuterium) on Ag and Cu films on Si(111) leads to the generation of excited electrons by direct energy transfer. On this basis, Prof. McFarland will explore the concept of new hydrogen sensors. Additionally, the study will be extended and the concept will be tested with the adsorption and reaction of other gases, including O2, CO, CO2, NO2, C2H2, etc., at various temperatures as a function of the characteristics of the metal-semiconductor substrate. The electronic excitation produced by chemisorption and reaction will be validated and employed as a basis for new solid state gas sensors. The project will involve students and two collaborators, Profs. Arunava Majumdar and Henry Weinberg. UCSB will cost-share the equipment.