Achieving Molecular Level Control over the Chemical, Electrochemical, and Electrical Properties of Crystalline Si Surfaces

实现对晶体硅表面化学、电化学和电学性质的分子水平控制

• 批准号: 0911682
• 负责人: Nathan Lewis
• 金额: $ 59.5万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2013-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0911682&HistoricalAwards=false
• 关键词: Achieving; Molecular; Level; Control; over

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). The Analytical and Surface Chemistry (ASC) Program of the Division of Chemistry will support the research project of Prof. Nathan Lewis of California Institute of Technology (Caltech). Prof. Lewis and his students will develop a detailed understanding of the chemical reactivity of well-defined, planar Si surfaces and thereby form the basis for transferring this chemistry to more complex structures; explore and characterize mixed-alkyl monolayers on Si(111) to optimize their electrical properties while retaining the ability to perform further, desirable functionalization reactions; make well-defined, transparent Si/conductive polymer junctions having a variety of barrier heights; and study the fundamental aspects of self-assembly, thus developing methodologies that will enable the spontaneous organization of isotropic semiconductor rod suspensions into oriented electrode arrays. This research project involves manipulating the properties of Si and it is therefore of importance in technologies such as photovoltaics, photoelectrochemical cells, and to processes such as etching and lithography in which the chemistry of Si surfaces is heavily exploited. The project will provide excellent training opportunities to undergraduate students, graduate students and postdoctoral fellows who wish to specialize in a cutting edge research area of great relevance to national competitiveness in the renewable energy, information, and optical communications industries.

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。化学系的分析与表面化学（ASC）项目将支持加州理工学院（Caltech）的Nathan Lewis教授的研究项目。Lewis教授和他的学生将详细了解定义良好的平面Si表面的化学反应性，从而为将这种化学反应转化为更复杂的结构奠定基础；探索和表征Si（111）上的混合烷基单层，以优化其电性能，同时保留进一步进行理想功能化反应的能力；制作具有各种势垒高度的清晰透明的硅/导电聚合物结；并研究自组装的基本方面，从而开发出能够将各向同性半导体棒悬浮物自发组织成定向电极阵列的方法。该研究项目涉及控制硅的性质，因此它在诸如光伏、光电化学电池等技术以及诸如蚀刻和光刻等工艺中具有重要意义，其中硅表面的化学性质被大量利用。该项目将为希望在可再生能源、信息和光通信行业从事与国家竞争力密切相关的前沿研究领域的本科生、研究生和博士后提供良好的培训机会。