Haze-Free Highly Transparent Glass Substrates with Nanostructured Surface by Using Self-Assembled Ag Etch Masks

Abstract

Nano- or micro-structured glass substrates have been widely used for displays, but have a significant drawback called haze that blurs the images. To eliminate haze while maintaining high total optical transmittance (T-total), the optimized design of textured structures on single- and double-side glass substrates was investigated using a rigorous coupled-wave analysis method. With optimized truncated cone-shaped nanostructures having period (Lambda) = 200 nm, top-diameter to bottom-diameter ratio (R) = 0.4 and height (h) >= 150 nm on both sides of glass substrates, we achieved a haze-free substrate with an average T-total = 99.5% in the wavelength (lambda) range 300-800 nm. (C) 2015 The Electrochemical Society. All rights reserved.