期刊
ACS APPLIED MATERIALS & INTERFACES
卷 6, 期 5, 页码 3115-3121出版社
AMER CHEMICAL SOC
DOI: 10.1021/am500315y
关键词
LED encapsulant; zirconium oligosiloxane; thermal stability; hybrid material; packaging; optical applications
资金
- National Research Foundation of Korea (NRF)
- Korea government (MSIP) [NRF-2013R1A2A2A05005911]
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 approximate to 1.58). In thermal aging, the ZPH LED encapsulant exhibited superior performances with a high optical transparency (similar to 88% at 450 nm) and exhibited high thermal stability (no yellowing at 180 degrees 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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