Organophosphorus pi-conjugated materials for organic electronics

这项拟议的研究涉及合成可能用于电子设备的新型功能分子，如用于平板显示器的有机薄膜晶体管(OTFT)和有机发光二极管(OLED)以及一般照明应用。我们的研究策略使用了所谓的“自下而上”的方法，在这种方法中，智能分子材料和更大的组件是使用原子和分子积木以受控的方式构建的。该计划的独特之处在于使用元素磷，这种元素被结合到以碳为基础的所谓有机分子中，以组装具有与硅半导体类似的电子性能的材料。材料中磷中心的存在为它们提供了非凡的特征，包括发射颜色、强度和可调性。此外，目标更大的超分子组装还旨在通过使用过渡金属作为组成部分来提高材料的捕光能力，从而提高材料的效率。这种新型材料的主要优势之一是它们的尺寸。有机电子器件可以比最小的硅半导体器件小约10到100倍，并且可以比现有材料消耗更少的电力，从而更高效地运行。由于可持续能源转换已成为我们日常生活的一个重要方面，产生不同颜色的光的替代方法，包括白光，以及节能集成电路，是该计划中新的有机磷材料可以实现的重要方面。OLED已经在数码相机、手机甚至电视机的平板显示器中得到了很好的应用，但也可以在仪表板照明或背光等汽车部件中找到，并可能在不久的将来完全取代更多普遍存在的技术。

The proposed research deals with the synthesis of novel functional molecules that can potentially be used in electronic devices, such as organic thin-film transistors (OTFTs) and organic light-emitting diodes (OLEDs) for flat-panel displays as well as general lighting applications. Our research strategy uses the so-called 'bottom-up' approach, in which smart molecular materials and larger assemblies are constructed in a controlled fashion using atoms and molecular building blocks. The unique aspect of the program is the use of the element phosphorus that is incorporated into carbon-based, so-called organic molecules to assemble materials with electronic properties similar to those of silicon semiconductors. The presence of the phosphorus centers within the materials provides them with extraordinary features that include emission color, intensity and tunability. The targeted larger 'supramolecular' assemblies are furthermore intended to increase the efficiency of the materials by improving their light-harvesting capabilities using transition metals as integral components. One of the major advantages of the novel materials is their size. Organic electronic devices can be about 10 to 100 times smaller than the smallest silicon semiconductor devices and can be operated much more efficiently to consume much less power than established materials. Since sustainable energy conversion has become an important aspect of our daily lives, alternative ways to generate light of different colors, including white light, as well as energy efficient integrated circuits, are important aspects that can be accomplished with the new organophosphorus materials within this program. OLEDs are already well established in flat panel displays of digital cameras, cell phones and even TV sets, but can also be found in automotive parts such as dashboard illumination or back lights, and may replace more of the commonly established technologies completely in the near future.