CAREER: Electron Injection in Nanostructured Materials: New Paradigm of Transparent Conducting Oxides

职业：纳米结构材料中的电子注入：透明导电氧化物的新范例

• 批准号: 0847319
• 负责人: Jung-Kun Lee
• 金额: $ 40万
• 依托单位: University of Pittsburgh
• 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: 2009-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0847319&HistoricalAwards=false
• 关键词: CAREER; Electron; Injection; Nanostructured; Materials

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).Technical: This CAREER project includes integrated research and education activities. The research explores novel nanocomposite materials that allow independent control of the carrier concentration and mobility of transparent conducting oxides for potential electro-optical applications. This will be accomplished through the self-assembly of high carrier concentration metallic nanoparticles in high mobility transparent conducting oxide materials. The project examines how microstructure and morphology of embedded nanoparticles influence the electrical and optical properties of such systems and determines the fundamental mechanisms responsible for the improved conductivity. The goals of the research activities are: i) Establishment of fundamental correlations between basic physics of nanocomposite based transparent conducting oxides and experimental observations of improved electrical conductivity and transparency; ii) Development of a basic understanding of the electron delocalization of metal nanoparticles embedded in a transparent conducting oxide matrix with different electronic and optical properties; and iii) Elucidation of the influence of solid-ion interactions on the nucleation, growth, and subsequent crystallization of nanoparticles embedded transparent conducting oxide films.Non-technical: The project addresses basic electronic/photonic materials research issues in a topical area of materials science with high technological relevance. Improvements in transparent conducting oxide conductivity have the potential to increase the energy conversion efficiencies of solar cells as well as increase the speed and energy efficiency of optoelectronic devices. The educational component of this CAREER award is expected to enhance the infrastructure of the renewable energy research at the University of Pittsburgh. The PI plans to develop a new course, Energy Applications of Nanostructured Materials, focusing on the correlation between solar energy and nanomaterials. This course is expected to be integrated with a new Nanotechnology Certificate at the University of Pittsburgh, which should make the Materials Science and Engineering program at the University more visible in nanoscience and sustainability educations. In addition, the results obtained through research activities will be utilized to develop a prototype solar cell for outreach to high school students with an emphasis on under-represented groups.

该奖项是根据2009年的《美国复苏与再投资法》（公法111-5）进行资助的。技术项目包括综合研究和教育活动。该研究探讨了新型的纳米复合材料，这些材料允许独立控制透明传导氧化物的载体浓度和迁移率，以实现潜在的电光应用。这将通过高载体浓度金属纳米颗粒的自组装来实现。该项目研究了嵌入式纳米颗粒的微观结构和形态如何影响此类系统的电气和光学特性，并确定负责改善电导率的基本机制。研究活动的目标是：i）基于纳米复合材料的透明导电氧化物的基本物理学与提高的电导率和透明度的实验观察之间建立基本相关性； ii）对嵌入具有不同电子和光学特性的透明导电基质中的金属纳米颗粒的电子离域化的基本理解；和iii）阐明固体离子相互作用对纳米颗粒的成核，生长和随后的结晶的影响，嵌入了透明导电氧化物膜的透明透明。没有技术：该项目解决了与高技术相关的材料科学领域中基本的电子/光子材料研究的基本电子/光子材料研究。透明导电电导率的改善具有提高太阳能电池的能量转化效率，并提高光电设备的速度和能源效率。预计该职业生涯奖的教育组成部分将增强匹兹堡大学可再生能源研究的基础设施。 PI计划开发新的课程，即纳米结构材料的能源应用，重点是太阳能与纳米材料之间的相关性。预计该课程将与匹兹堡大学的新纳米技术证书融合在一起，该课程应使大学的材料科学与工程计划在纳米科学和可持续性教育方面更加可见。此外，通过研究活动获得的结果将用于开发一个原型太阳能电池，以向高中生推广，重点是代表性不足的群体。