pi-functional organic materials for molecular and nanoelectronics

点击翻译按钮获取中文摘要

Electronic organic materials have all indications of becoming the materials of choice for a number of high-tech applications, including displays, solar cells, memories, sensors, etc. Therefore, our ability to understand and to design the electronic function is of paramount importance for development of future energy, communications and even medical and security technologies. Most of these special electronic properties are enabled highly delocalized pi-electron system in certain classes of organic molecules (pi-functional materials). Our research program is set to develop new approaches to synthesis and self-assembly of the new pi-functional materials, in order to control the electronic properties, both at the molecular and supramolecular level (i.e. in bulk solids). Performing the studies at three different levels - single molecules, molecular films and conjugated polymers, we look for a generalized understanding of how electronic conjugation and intermolecular interactions control the transport of electrical charge through the molecules, and how to apply these properties to build functional organic/molecular devices. The research program is structured such as to involve the synthesis and studies of materials applicable in current technologies (molecular semiconductors and conjugated polymers for thin film transistors) as well as those developing new concepts with potential applications in more distant future (eg, funcitonal molecular devices with multitermini electrical input/output). Since facile photo- and air-promoted degradation of organics is one of the major factors limiting their wide application in optoelectronics, we will pay a particular attention to stability of our materials; some of semiconducting molecules that we synthesize are stable in air up to almost 400oC. We expect that performing the suggested research will significantly impact our knowledge at the interface of organic chemistry, solid state physics and electronics, and yield the materials of practical importance for the optoelectronic technologies.