New Functional Organoboron Materials for Optoelectronics and Energy Conversion

设计复杂的芳基硼烷是下一代有机光电材料的关键组成部分。它们的潜在应用范围从用于平板显示器和照明的有机发光二极管(OLED)到用于太阳能转换的有机光伏器件(OPV)、场效应晶体管(OFET)和锂电池的电极材料。在这个方案中，我们结合了4个国际领先的研究小组的专业知识(2个来自德国，2个来自中国)，其中3个专门从事新型含硼材料的设计和合成，1个专门从事有机器件的制造，以启动一个雄心勃勃的合作项目，以设计和合成新的基于硼的材料，并探索它们在光电子器件中的应用。我们建议开发新的和非传统的合成方法来创造几类新型的掺硼多环芳烃(PAH)，抗芳香族化合物，芳香族芳香族化合物，以及不同类型的含硼杂原子的共轭体系，并研究它们在有机电子器件如OLED，OPV，等中的应用和全聚合物太阳能电池(ALL-PSC)。需要应对的关键科学挑战是：(A)开发适用于大量新化合物的简便有效的合成方法，特别是模块化合成方法；(B)在环境条件下实现化学稳定性；(C)了解和调整影响B-PAHs和B，X-PAHs的电子和光物理性质的关键因素；(D)确定相应材料在光电子器件中应用的范围和限制。根据我们最近的发现，某些全氟烷基取代的芳烃在增强电子受体性能的同时可以显著提高化合物的稳定性，我们提出了各种合成策略来制备各种全氟烷基取代的芳烃，这些芳烃将连接到硼烷和波列宾中的硼中心，并可用于其他类型的硼基材料，以应对上述挑战(A)和(B)。通过复杂的合成方法，合成了几种新型的硼(B)和硼杂原子(B，X)掺杂的多环芳香族化合物，并对它们的性质进行了研究。含有B，N-螯合单元的新型杂化材料也将被准备用于太阳能电池。将在项目内将新化合物纳入有机电子设备(有机发光二极管、有机电致发光二极管、全功率开关、场效应管)，并对其效率进行评估。这些目标被分成8个工作包，平均分配给4名首席调查员。

Sophisticatedly designed aryl boranes are key building blocks for next-generation organic optoelectronic materials. Their potential applications range from organic light-emitting diodes (OLEDs) for flat displays and lighting to organic photovoltaic devices (OPVs) for solar energy conversion, field-effect transistors (OFETs), and electrode materials in lithium batteries. In this proposal, we combine the expertise of 4 internationally leading research groups (2 from Germany and 2 from China) including 3 which specialize in the design and synthesis of novel boron-containing materials, and 1 which specializes in the fabrication of organic devices to embark on an ambitious collaborative project to design and synthesize new boron-based materials and to explore their applications in optoelectronic devices.We propose to develop new and unconventional synthetic methodologies for the creation of several classes of novel boron-doped polycyclic aromatic hydrocarbons (PAH), antiaromatic boroles, aromatic borepins, and different types of boron-heteroatom containing conjugated systems and to investigate their use in organic electronic devices such as OLEDs, OPVs, and all polymer solar cells (all-PSCs). Key scientific challenges to be addressed are: (a) developing facile and efficient synthetic methods, especially modular synthetic approaches, that are applicable to a large library of new compounds; (b) achieving chemical stability under ambient conditions; (c) understanding and tuning the key factors that influence the electronic and photophysical properties of B-PAHs and B,X-PAHs; (d) establishing the scope and limitation of corresponding materials for applications in optoelectronic devices. On the basis of our recent findings that certain perfluoroalkyl-substituted arene groups on boron can provide a dramatic increase in stability of the compounds while enhancing electron acceptor properties, we propose synthetic strategies for the preparation of a variety of perfluoroalkyl-substituted arenes which will be attached to boron centers in both boroles and borepins, and can be used for other types of boron-based materials, to approach challenges (a) and (b) above. Several types of novel boron (B) and boron-heteroatom (B,X)-doped polycyclic aromatic compounds will be prepared using sophisticated synthetic approaches and their properties will be explored. New hybrid materials containing B,N-chelate units will also be prepared for applications in solar cells. New compounds will be incorporated into organic electronic devices (OLEDs, OPVs, all-PSCs, OFETs) within the project, and their efficiencies will be evaluated. The objectives have been grouped into 8 work packages, distributed equally among the 4 principal investigators.