Fabrication and testing red-emitting ceramic phosphor for laser phosphor projection

该CRD项目旨在开发和应用一种新的荧光粉材料，用于安大略省客户公司正在开发的激光荧光粉照明。将使用商业上可获得的和内部生产的原材料。红色荧光粉的设计和制造将包括将红色荧光粉粘结到掺Ce的Y-Al_2O_3-石榴石陶瓷上，然后将内部生产的粉末转换成0.2-0.5 mm厚的实心薄片，然后将这些薄片粘结到YAG：Ce基片上。在第二阶段，将设计和制造红色增强复合陶瓷，采用适合于获得100%致密透明陶瓷的高温高压烧结工艺，适合于高性能图像投影。这种红色发光增强的新一代红色荧光粉陶瓷将取代现有的红色不足的宽黄色荧光粉(YAG：Ce)。HQP将能够发展新一代陶瓷的设计和制造技能，这种陶瓷能够发出红色，不仅可以用于图像投影，还可以用于高效发光二极管和激光。

This CRD program aims at developing and applying a new phosphor material for use in laser phosphor illumination under development by the client company in Ontario. Both commercially available and in house produced raw materials will be used. The design and fabrication of the red-enhanced phosphor will involve both bonding the red phosphor powder to the yttria-alumina-garnet ceramics doped with cerium (YAG:Ce) and converting the in-house produced powder into thin solid plates, 0.2-0.5mm thick, followed by bonding the plates to YAG:Ce substrate. In the second stage of the program, a composite red-enhanced ceramics will be designed and fabricated using a high temperature high pressure sintering process suitable for obtaining 100% dense transparent ceramics suitable for high performance image projection. This new generation of red-phosphor ceramics with increased red-emission will replace the existing broad yellow emitting phosphor (YAG:Ce) known to be deficient in red color. The HQP will be in the position to develop skills in the design and fabrication of a new generation of ceramics capable of emitting red color that can be used not only in image projection but also in high efficiency light emitting diodes and lasers.