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

利用非绝热能量转移和超薄金属膜上气体吸附和反应产生“化学电流”的新传感器概念研究

• 批准号: 9820134
• 负责人: Eric McFarland
• 金额: --
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-06-01 至 2003-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9820134&HistoricalAwards=false
• 关键词: Investigation; New; Sensor; Concept; Using

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.

摘要CTS-9820134埃里克·麦克法兰/加州大学圣巴巴拉分校埃里克·麦克法兰教授将研究原子或分子与沉积在半导体上的非常薄的金属薄膜相互作用时产生的化学电现象的本质。该研究将验证以下假设：氢（或氘）在 Si(111) 上的 Ag 和 Cu 薄膜上的碰撞和吸附导致通过直接能量转移产生激发电子。在此基础上，McFarland教授将探索新型氢传感器的概念。此外，该研究还将得到扩展，并将在不同温度下对其他气体（包括 O2、CO、CO2、NO2、C2H2 等）的吸附和反应进行测试，作为金属半导体基板特性的函数。化学吸附和反应产生的电子激发将得到验证并用作新型固态气体传感器的基础。该项目将涉及学生和两名合作者，教授。阿鲁纳瓦·马宗达尔和亨利·温伯格。 UCSB 将分摊设备费用。