MRI: Development of a System for Thin Film Deposition of Highly Ordered Organic Materials.

MRI：开发高度有序有机材料薄膜沉积系统。

• 批准号: 0722451
• 负责人: Randall Headrick
• 金额: $ 18.85万
• 依托单位: University of Vermont & State Agricultural College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0722451&HistoricalAwards=false
• 关键词: MRI; Development; System; Thin; Film

Technical abstractThis project is to develop a unique system for microlithography of organic materials from solution using a direct-write process. The instrument will be capable of depositing a variety of materials, including organic semiconductors, functionalized proteins, and polymeric materials. The work will build on a recent discovery that by directing the crystallization of thin film materials laterally across the surface of a substrate, crystalline domain sizes larger than one millimeter can be obtained for a variety of organic semiconductor materials. The large grain sizes represent a several order-of-magnitude improvement over commonly used techniques. Single crystal films have much lower defect densities than polycrystalline films, and exhibit improved electronic and mechanical properties. Thus, the goal of several research projects that will use this new instrument will be to correlate structural ordering of new materials with electrical, optical, and mechanical properties. The materials to be studied initially have applications in the areas of organic electronics, organic photovoltaics, synthetic collagen, and biocompatible materials that could be used for stents. The capability to easily fabricate highly ordered thin films of new materials will enable rapid progress in both fundamental studies of materials and the development of new materials for applications in the areas mentioned above.Non-technical abstractThis project is to develop a system that implements a new inexpensive method for writing patterns of carbon-based soft materials with a high degree of alignment of the molecules making up the material. The ordering arrangement of molecules has a large influence on the properties of the materials and hence the suitability for practical applications. The new instrument will allow research on how certain types of molecular ordering influence properties of materials that might make them suitable for forming electronic switches, or to generate electricity from light. The instrument will produce a much higher degree of ordering than conventional methods, and will therefore assist in the development of materials for bright inexpensive displays, as well as for highly efficient carbon-based solar cells as a source of electricity. Other materials that will be investigated have applications as synthetic strands of the material that give skin its elastic properties, and as bio-compatible materials that can be used for hold blocked arteries open to allow blood to flow freely. The crucial capability to easily fabricate highly ordered thin films of a broad range of materials will enable rapid progress in both fundamental studies and advanced applications in the areas mentioned above.

技术摘要本项目是开发一种独特的系统，用于从溶液中使用直写工艺对有机材料进行微光刻。 该仪器将能够沉积各种材料，包括有机半导体、功能化蛋白质和聚合物材料。这项工作将建立在最近的一项发现，即通过引导薄膜材料的结晶横向跨越衬底的表面，可以获得大于一毫米的结晶域尺寸的各种有机半导体材料。大晶粒尺寸代表了比常用技术的几个数量级的改进。单晶膜具有比多晶膜低得多的缺陷密度，并且表现出改进的电子和机械性能。 因此，将使用这种新仪器的几个研究项目的目标将是将新材料的结构排序与电学，光学和机械性能相关联。 待研究的材料最初应用于有机电子学、有机光致发光学、合成胶原蛋白和可用于支架的生物相容性材料领域。 容易地制造高度有序的新材料薄膜的能力将使材料的基础研究和新材料的开发应用在上述领域的快速进步。非技术abstractionThis项目是开发一个系统，实现了一个新的廉价的方法写入图案的碳基软材料与高度排列的分子组成的材料。分子的有序排列对材料的性质有很大的影响，因此对实际应用的适用性也有很大的影响。新仪器将允许研究某些类型的分子排序如何影响材料的性质，这些材料可能适合形成电子开关或从光中发电。 该仪器将产生比传统方法更高的有序度，因此将有助于开发用于明亮廉价显示器的材料，以及作为电力来源的高效碳基太阳能电池。将被研究的其他材料具有作为材料的合成股线的应用，该材料赋予皮肤其弹性特性，并且作为可用于保持阻塞的动脉开放以允许血液自由流动的生物相容性材料。容易制造各种材料的高度有序薄膜的关键能力将使上述领域的基础研究和高级应用取得快速进展。