Synthesis and Organization of Electronic Molecular and Polymeric Materials

电子分子和高分子材料的合成与组织

• 批准号: 1005810
• 负责人: Timothy Swager
• 金额: $ 51万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-07-01 至 2014-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1005810&HistoricalAwards=false
• 关键词: Synthesis; Organization; Electronic; Molecular; Polymeric

TECHNICAL SUMMARY: This program is supported by the DMR Solid State and Materials Chemistry Program and the CHE Macromolecular, Supramolecular, and Nanochemistry Program.This effort is directed at the synthesis of functional organic materials and methods for their assembly. Specific themes include the organization of liquid crystalline materials using novel molecular shapes such as rigid triptycene units to enhance liquid crystal alignment. Similar organizational forces can be applied at surfaces and investigations focusing on large skeletal rearrangements caused by specific photochemical reactions will be used to create specific surface alignments. In the area of molecular semiconductors, investigations of the role of long-range and short-range order on the electronic transport properties will be performed. Different global alignments in devices seek to determine if combined Pt dz2 and p-orbital interactions can lead to high mobility in oriented soft crystal phases. Other investigations will focus on open-shell organic materials in liquid crystals. Polyradicals that are strongly electronically coupled intramolecularly will be interrogated to examine if magnetic ordering can play a role in electron transport (i.e. magnetoresistance). Complex polycyclic carbon network materials will be synthesized using Diels Alder reactions in an effort to create higher acene structures containing phenylene units and the synthesis of carbon nanotubes.NON-TECHNICAL SUMMARY: Molecular based electronic materials and associated technology is rapidly becoming part of everyday life. Presently, the impact of these technologies is limited by the intrinsic performance of the materials. This research will push forward new design paradigms that seek to produce materials with enhanced electronic transport. It will further develop materials having new types of electronic interactions that can lead to new physical phenomena that can be the basis of future technologies. The students trained in this effort will be prepared to contribute to this emerging industry. In addition, the PI will continue his efforts to create higher diversity in the workforce by continuing to promote and organize workshops that seek to empower the scientific careers of disadvantaged Americans.

技术摘要：该计划得到了 DMR 固态和材料化学计划以及 CHE 高分子、超分子和纳米化学计划的支持。这项工作旨在合成功能性有机材料及其组装方法。 具体主题包括使用新颖的分子形状（例如刚性三蝶烯单元）来组织液晶材料，以增强液晶排列。 类似的组织力可以应用于表面，并且针对特定光化学反应引起的大型骨骼重排的研究将用于创建特定的表面排列。 在分子半导体领域，将研究长程和短程有序对电子传输特性的作用。 器件中不同的全局排列试图确定 Pt dz2 和 p 轨道相互作用的组合是否可以导致定向软晶相的高迁移率。 其他研究将集中在液晶中的开壳有机材料。 将研究分子内强电子耦合的多自由基，以检查磁有序是否可以在电子传输中发挥作用（即磁阻）。 复杂的多环碳网络材料将使用狄尔斯阿尔德反应来合成，以努力创建含有亚苯基单元的更高并苯结构并合成碳纳米管。非技术摘要：基于分子的电子材料和相关技术正在迅速成为日常生活的一部分。 目前，这些技术的影响受到材料固有性能的限制。 这项研究将推动新的设计范式，寻求生产具有增强电子传输的材料。 它将进一步开发具有新型电子相互作用的材料，这些材料可以产生新的物理现象，从而成为未来技术的基础。 接受过这项培训的学生将准备好为这个新兴行业做出贡献。 此外，PI 将继续努力通过继续促进和组织研讨会，寻求增强弱势美国人的科学职业能力，从而在劳动力中创造更高的多样性。