Synthesis, properties, and anti-reflective applications of new colorless polyimide-inorganic hybrid optical materials
Journal
Composites Science and Technology
Journal Volume
70
Journal Issue
5
Pages
769-775
Date Issued
2010
Author(s)
Wang, Y.-W.
Abstract
We report the synthesis, properties and anti-reflective applications of new colorless polyimide-inorganic hybrid thin films prepared from 1,4-bis(3,4-dicarboxyphenoxy)-2,5-di-tert-butylbenzene dianhydride (DDBBDA)/oxydianiline (ODA) with silica or titania precursors. The experimental results suggest that the prepared hybrid films have good thermomechanical properties, excellent transparence, tunable refractive indices of 1.550-1.847, and low optical birefringence. The nanocrystalline titania domain size analyzed form TEM and XRD is in the range of 10-20. nm in the hybrid materials. Three-layer anti-reflective films on glass or polymer substrates processed from the hybrid precursors have a relatively low reflection of less than 0.5% in the visible range. These results indicate that the newly prepared colorless polyimide-inorganic hybrid materials have potential applications for optical devices. © 2010 Elsevier Ltd.
Type
journal article