Multifunctional Molecular Interfaces to Metal Oxide Surfaces

金属氧化物表面的多功能分子界面

• 批准号: 0911543
• 负责人: Robert Hamers
• 金额: $ 60.36万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2013-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0911543&HistoricalAwards=false
• 关键词: Multifunctional; Molecular; Interfaces; Metal; Oxide

Professor Robert Hamers of the University of Wisconsin-Madison is supported by the Analytical and Surface Chemistry Program in the Division of Chemistry to investigate the use of molecular layers as electronic interfaces to oriented single crystals of TiO2 in the anatase and rutile forms, and extending to other oxides including SrTiO3. Studies will focus primarily on single crystals but will also use nanocrystalline materials as appropriate. The studies are aimed at achieving a fundamental understanding of how differences in surface structure impact the resulting molecular layers and the electronic properties of the interfaces. The structural and electronic properties of these grafted layers on well-defined single crystals of oxide semiconductors will be evaluated using a variety of chemical, structural, electronic, and spectroelectrochemical probes. Oxide semiconductors are the basis for several new and emerging types of dye-sensitized solar cells, quantum dot solar cells, and photocatalysis devices. The ability to integrate these materials with molecular and nanostructured sensitizers could lead to the development of inexpensive solar cells made by simple wet-chemical methods. The educational activities include mentoring of 8th grade students on science projects in renewable energy, summer internships for high school students, and year-round research opportunities for undergraduates and graduate students.

威斯康星大学麦迪逊分析的罗伯特·哈默斯（Robert Hamers）教授得到化学分析和表面化学计划的支持，以研究分子层用作电子界面与剖析酶和金红蛋白形式的TIO2的电子界面的使用，并扩展到包括SRTIO3在内的其他氧化物。研究将主要关注单晶，但还将适当使用纳米晶体材料。研究旨在实现对表面结构差异如何影响所得分子层和接口的电子特性的基本理解。这些移植层在氧化物半导体的明确单晶上的结构和电子特性将使用各种化学，结构，电子和光谱电化学探针进行评估。氧化物半导体是染料敏化的太阳能电池，量子点太阳能电池和光催化装置的几种新型和新兴类型的基础。将这些材料与分子和纳米结构敏化剂相结合的能力可能会导致通过简单的湿化学方法制造的廉价太阳能电池的发展。教育活动包括指导八年级学生有关可再生能源科学项目的指导，高中生的暑期实习以及本科生和研究生的全年研究机会。