项目名称: 金属/半导体肖特基结构中催化诱导热电子现象研究
项目编号: No.61204129
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 信息四处
项目作者: 曾志刚
作者单位: 上海大学
项目金额: 24万元
中文摘要: 针对金属表面催化氧化反应在金属-半导体肖特基纳米二极管结构上会激发热电子并形成化学电流的现象,本项目提出通过改变半导体的表面状态的方法,来探讨Pt/半导体肖特基势垒与热电子电流之间的关系,摸索形成化学电流的最优条件,为探讨该结构电子器件在快速高灵敏化学传感器和新型微能源器件方面的应用奠定理论和实验基础。该研究综合了热电子能量转换和催化表面化学学科的最新研究成果,是一个集表面化学、半导体物理、材料科学等多学科交叉性研究,项目的提出有充分的理论和实验依据。
中文关键词: 纳米肖特基二极管;纳米催化燃烧;热电子发射;微能源器件;热电
英文摘要: Some fraction of the energy released by an exothermic catalytic oxidation on metal surface can be dissipated to form an excited (or hot) electron, which may be captured in an electronic circuit using metal-semiconductor Schottky diode structure and thus produce a chemicurrent. In this project, the Schottky barrier will be modulated by modifying or changing the surface state of semiconductor interface in order to find out the relationship between barrier height and surface reaction-induced current and determine the optimal condition of Schottky nanodiode to produce hot electrons. The research results will lay the theoretical and practical foundation for developing new micropower or fast chemical detector with high response.This proposed project integrates the up-to-date outcomes of thermoelectric energy converting and catalysis surface chemistry, belonging to a multi-disciplinary intersectional research program. Based on the above analysis, it can be inferred that the proposed project exhibits extremely strong theoretical and experimental basis.
英文关键词: nano schottky diode;nano catalytical combustion;thermionic emission;micro power devices;thermoelectric