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的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，并将该封装材料用于具有高光提取效率的发光二极管（led）。该研究提出了一种新型的纳米材料聚合物封装剂，具有前所未有的高折射率（n2.0）。这种材料对发光二极管的光提取极为有益。新封装剂的应用有望使光萃取效率提高20% - 45%。知识上的优点还在于对该纳米复合材料的光学散射特性进行了基本的评估。这种新型密封剂的可用性将对所有使用led的技术领域非常有益，包括标识、照明、通信、成像、生物技术和医学。一种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导致全球范围内光电器件封装和封装的范式转变。高效LED技术在普通照明应用中的广泛应用将导致美国每年节省太瓦时范围内的电能。

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.