SBIR Phase I: Titania-Loaded Silicone with High Refractive Index for Light-Emitting Diode Encapsulation

这个小型企业创新第一阶段研究项目涉及开发一种具有非常高折射率(超过2.0)的新型聚合物封装材料，并将这种封装材料用于具有高抽光效率的发光二极管(LED)。这项拟议的工作引入了一类新的基于纳米材料的聚合物密封剂，具有前所未有的高折射率(n 2.0)。这种材料将对发光二极管中的光提取非常有利。这种新型封装剂的使用有望使光提取效率提高20%-45%。智能的优点还在于对这种纳米复合材料的光学散射性能进行了基本的评估。这种新型密封剂的上市将对所有使用LED的技术领域非常有利，包括标志、照明、通信、成像、生物技术和医学。新型高折射率封装剂的开发将对LED技术产生巨大影响，因为几乎所有的LED都是封装和封装的。该计划的成功完成可能会导致光电子器件封装和封装方面的全球典范转变。在普通照明应用中广泛部署高效LED技术将在美国每年节省约太瓦时的电能。

This Small Businesses Innovation Phase I research project concerns the development of a new class of polymer encapsulation materials with a very high refractive index (exceeding 2.0) and the use of the encapsulant material for light-emitting diodes (LEDs) with high light-extraction efficiency. The proposed effort introduces a new class of nanomaterial-based polymer encapsulants with an unprecedented high refractive index (n 2.0). Such materials would be extremely beneficial for light extraction in light-emitting diodes. Increases of 20 % - 45 % in light extraction efficiency are expected from the employment of the new encapsulant. The intellectual merit also lies in the fundamental assessment of the optical scattering properties of this nanocomposite. The availability of the new encapsulant would be very beneficial to all technical fields employing LEDs including signage, lighting, communications, imaging, biotechnology, and medicine. The development of a new high-index encapsulant would have a tremendous impact on LED technology because virtually all LEDs are packaged and encapsulated. A successful completion of the program could result in a worldwide paradigmatic shift in the packaging and encapsulation of optoelectronic devices. The broad deployment of efficient LED technology for general lighting applications would result in electrical energy savings in the TWh range per year in the United States.