硅氧烷
材料科学
折射率
锆
热稳定性
硅氢加成
高折射率聚合物
固化(化学)
混合材料
复合材料
溶胶凝胶
聚合物
化学工程
光电子学
纳米技术
有机化学
催化作用
化学
冶金
工程类
作者
Yong Ho Kim,Jun-Young Bae,Jungho Jin,Byeong‐Soo Bae
摘要
We report a zirconium-phenyl siloxane hybrid material (ZPH) that can be used as a robust LED encapsulant. The ZPH encapsulant was fabricated via hydrosilylation-curing of sol–gel derived multifunctional (vinyl- and hydride-functions) siloxane resins containing phenyl-groups and Zr–O–Si heterometallic phase for achieving a high refractive index (n ≈ 1.58). In thermal aging, the ZPH LED encapsulant exhibited superior performances with a high optical transparency (∼88% at 450 nm) and exhibited high thermal stability (no yellowing at 180 °C for 1008 h), compared to a commercial LED encapsulant (OE-6630, Dow Corning Corporation). This suggests potential for ZPH to be a robust LED encapsulant.
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