High performance surface-modified TiO₂/silicone nanocomposite.

ABSTRACT: The mismatch of refractive index (RI) between light emitting diode (LED) chips and packaging resins severely lowers the lighting emitting efficacy of LED. The RI can be enhanced by the introduction of high RI nanoparticles but meanwhile it is a great challenge to maintain the high transparency for resins due to the agglomeration of nanoparticles. In this work, a facile strategy is proposed to fabricate silicone nanocomposites with a high transparency (>88%, less than 2% decrease relative to pure silicone resin), largely enhanced RI (an increase from 1.42 to 1.60) and improved thermal stability (73 °C increase in weight loss of 50%). Specifically, the ultra-fine monodispersed TiO₂/silicone composites are prepared by direct solvent mixing of 1 wt% surface modified TiO₂

SUBMITTER: Huang P 

PROVIDER: S-EPMC5519632 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature