Systematic Development of New Organic Conductors

新型有机导体的系统开发

• 批准号: 9223481
• 负责人: Dwaine Cowan
• 金额: $ 48万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-06-01 至 1996-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9223481&HistoricalAwards=false
• 关键词: Systematic; Development; New; Organic; Conductors

The goal of this research is to develop systematically new organic semiconductors, metals, and superconductors through a detailed understanding and chemical control of the electronic properties. The research will initially focus on the synthesis of tetramethyltetratellurafulvalene and its charge-transfer and complex radical cation salts; preparation of a series of dicyclobutenotetrachalcogenafulvalenes and their corresponding salts; and the synthesis of a number of tetraoxafulvalenes and their salts. To guide the synthetic program, studies will be conducted on physical properties, electrical conductivity, themoelectric power, magnetic susceptibility, and scanning tunneling microscopy on these salts as well as on new charge- transfer and complex radical cation salts from known donors. The next generation of microelectronic devices is likely to depend on the development of new organic, organometallic, and inorganic materials. Thus, the aim of this research is to develop systematically new organic semiconductors, metal, and superconductors through a detailed understanding and chemical control of the electronic properties. The research will initially focus on the synthesis of selected compounds and their charge- transfer and complex radical cation salts. To guide the synthetic program, studies will be conducted on physical properties, electrical conductivity, thermoelectric power, magnetic susceptibility, and scanning tunneling microscopy on these salts and on new charge-transfer and complex radical cation salts from known donors. A number of new chemical and physical studies are designed to help elucidate the switching and memory mechanism in metal-organic charge transfer salts.

这项研究的目标是通过对电子特性的详细了解和化学控制来系统地开发新型有机半导体、金属和超导体。 该研究最初将集中于四甲基四碲富瓦烯及其电荷转移盐和络合物自由基阳离子盐的合成；系列二环丁烯四硫属富瓦烯及其相应盐的制备；以及多种四氧富瓦烯及其盐的合成。 为了指导合成计划，将对这些盐以及来自已知供体的新电荷转移和复杂自由基阳离子盐进行物理性质、电导率、热电势、磁化率和扫描隧道显微镜的研究。 下一代微电子器件可能依赖于新型有机、有机金属和无机材料的开发。 因此，这项研究的目的是通过对电子特性的详细了解和化学控制来系统地开发新型有机半导体、金属和超导体。 该研究最初将集中于选定化合物及其电荷转移和复杂自由基阳离子盐的合成。 为了指导合成计划，将对这些盐以及来自已知供体的新电荷转移和复杂自由基阳离子盐的物理性质、电导率、热电势、磁化率和扫描隧道显微镜进行研究。 许多新的化学和物理研究旨在帮助阐明金属有机电荷转移盐的开关和记忆机制。