PFI-TT: Optimizing Next-Generation Materials for Organic Light Emitting Diode (OLED) Applications

该PFI项目更广泛的影响/商业潜力在于有机发光二极管（OLED）器件提供的节能显示器和照明领域。OLED是最节能的发光方式，在显示器中提供更高的颜色质量和对比度（真正的黑色），并且设备可以弯曲，允许独特的形状。尽管经过多年的研究，这项技术仍然受到发射蓝光的材料寿命短的限制，这阻碍了大规模的商业应用。稳定的蓝光发射化合物将大大增加手机和电视显示器的寿命，以及采用OLED技术的普通照明，这将彻底改变这些行业。消费者对他们的移动的手机的最大需求是更长的电池寿命，而OLED提供了显示技术的最低能耗。稳定的蓝色也是白色在一般照明应用中的应用限制。考虑到美国20%的电力用于照明，采用比白炽灯照明效率高90-98%的技术将大大减少温室气体排放并节省数十亿美元。该项目将评估最近发现的具有上级稳定性和颜色特性的复合物在OLED器件中的应用。拟议的项目将评估最近发现的CCC-NHC钳形复合物作为蓝色发射体组件的设备特性。一个模块化的，有效的合成提供了访问的复杂性，可以系统地改变，以评估设备的功能和特点，在一个逻辑的方式。这些复合物已被证明具有上级目前使用的材料的空气和水稳定性。通过采用复杂的阻挡层技术来保护发射极对于器件制造来说代表了显著的成本和工程挑战。最初将使用旋涂制造（最快的现成工艺）制备器械，并评估与商业化和工业制造相关的关键特性。最有前途的候选人将在通过热蒸发沉积（TED）制备的设备中进行评估，该设备提供了与商业制造工艺更相关的设备特性。另外的优点是，通过容易地改变器件制造条件或发射器的结构，这些材料产生与一般照明应用相关的白色光。该项目的成功完成将导致技术的许可证或形成一个公司，生产发光材料的OLED显示和照明行业。这个奖项反映了NSF的法定使命，并已被认为是值得支持的评估使用基金会的智力价值和更广泛的影响审查标准。

The broader impact/commercial potential of this PFI project are in the area of energy efficient displays and lighting provided by Organic Light Emitting Diode (OLED) devices. OLEDs are the most energy efficient means of producing light, provide higher color quality and contrast (a true black) in displays, and the devices are bendable allowing unique shapes. Despite many years of research this technology is still limited by short lifetimes of the materials that emit blue light, which has prevented large scale commercial applications. Stable blue light emitting compounds will dramatically increase the lifetime of cell phone and television displays and general lighting employing OLED technologies, which will revolutionize these industries. The greatest want of consumers for their mobile phones is longer battery life, and OLEDs provide minimum energy consumption of display technologies. Stable blues are also the limitation of applications for white in general lighting applications. Considering that 20% of the electricity generated in the US is consumed in lighting, employing technology that is 90-98% more efficient than incandescent lighting will dramatically reduce greenhouse gas emissions and save billions of dollars. This project will evaluate recently discovered complexes with superior stability and color characteristics for application in OLED devices. The proposed project will evaluate the in-device characteristics of recently discovered CCC-NHC pincer complexes as the blue emitter component. A modular, efficient synthesis provides access to complexes that can be altered systematically to evaluate device functionality and characteristics in a logical manner. These complexes have been demonstrated to have superior air- and water-stability to currently employed materials. The protection of the emitters by employ of sophisticated barrier technology represents a significant cost and engineering challenge for device manufacture. Devices will be prepared, initially, with spin coating fabrication, the fastest readily-available processes, and evaluated for key characteristics relevant to commercialization and industrial manufacturing. The most promising candidates will be evaluated in devices prepared by thermal evaporative deposition (TED), which provides device characteristics more relevant to commercial manufacturing processes. An additional advantage is that through easy alteration in device fabrication conditions or the structure of the emitter, these materials produce white light relevant for general lighting applications. Successful completion of the project will lead to licensing of the technologies or to the formation of a company to produce the emitting materials for the OLED display and lighting industries.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.