Fundamental Studies and Device Applications of Ionic Transition Metal Complexes

技术支持：本项目旨在了解离子过渡金属配合物（iTMCs）配置为固态电致发光器件的操作机制。这些材料可以具有效率（10 Lm/W）和亮度（300 cd/m2），并且可以使用由溶液处理的单层有机材料来制造。与主流有机发光二极管相反，它们不需要低功函数电极，因此为电致发光器件提供了具有降低的封装要求的潜力，该电致发光器件可以沉积在几乎任何衬底上。此外，iTMC实现了独特的器件制造范例，例如通过软接触层压，以及不需要有机层图案化的大面积照明面板的开发。然而，为了实现这一潜力，需要在理解和功能方面取得进展。也就是说，它们的色域需要扩展到光谱的蓝色部分，并且它们的寿命实际上未经测试。一个目标将是合成新型的iTMC，显示蓝色发射和改善的稳定性的设备。其目的是更深入地了解混合导体的器件物理特性，并阐明过渡金属配合物的器件相关降解途径。该项目还将解决在最低封装条件下提高稳定性的器件制造，以及覆盖光谱可见部分的发射。该研究预计将影响其他材料类，如陶瓷，和其他技术，如燃料电池和photopolics.Non-Technical：该项目提供综合教育和研究培训的研究生和本科生在一个跨学科领域，包括化学，工程，材料科学和物理.该项目汇集了来自康奈尔大学材料科学工程系，普林斯顿大学化学系以及西蒙斯学院物理和化学系的教师。康奈尔大学和西蒙斯大学（一所以本科生为主的女子学院）之间的伙伴关系将涉及超过35名本科生的研究。此外，化学和物理联络（化学和物理专业的学生组织）将把一个突出发光二极管的新演示纳入其每年为初中和高中教室举办的外联活动。

Technical: This project seeks to understand the mechanism of operation of ionic transition metal complexes (iTMCs) configured as solid-state electroluminescent devices. These materials can have efficiencies (10 Lm/W) and brightness (300 cd/m2 ), and can be fabricated using a single layer of organic material processed from solution. Contrary to mainstream organic light emitting diodes, they do not require low work function electrodes, and as a result offer potential for electroluminescent devices with reduced encapsulation requirements that can be deposited on practically any substrate. Additionally, iTMCs enable unique device fabrication paradigms, such as by soft-contact lamination, as well as the development of large-area illumination panels that do not require patterning of the organic layer. However, in order to realize this potential, advances in understanding and functionality are needed. Namely, their color gamut needs to be extended to the blue part of the spectrum, and their lifetime is practically untested. A goal will be to synthesize novel iTMCs that show blue emission and improved stability in devices. The aim is to obtain deeper understanding of the device physics of mixed conductors, and elucidate device-relevant degradation pathways for transition metal complexes. The project will also address device fabrication with improved stability under minimal encapsulation conditions, and emission that covers the visible part of the spectrum. The research is expected to impact other materials classes, such as ceramics, and other technologies, such as fuel cells and photovoltaics.Non-Technical: This project provides integrated education and research training to graduate and undergraduate students in an interdisciplinary field including chemistry, engineering, materials science and physics. This project brings together faculty from the Departments of Materials Science & Engineering of Cornell University, the Department of Chemistry at Princeton University, as well as from the Departments of Physics and Chemistry at Simmons College. The partnership between Cornell and Simmons (a predominately undergraduate women's college) will involve over 35 undergraduate students in research. In addition, the Chemistry and Physics Liaison (a student organization for chemistry and physics majors) will incorporate a new demonstration highlighting light emitting diodes into its yearly outreach activities for middle school and high school classrooms.