White‐Light‐Emitting Diodes: Enhanced Luminescence Characteristics of Remote Yellow Silicate Phosphors Printed on Nanoscale Surface‐Roughened Glass Substrates for White Light‐Emitting Diodes (Advanced Optical Materials 7/2016)

A printed layer of yellow phosphors on a surface-roughened glass substrate for white light-emitting diodes is presented. The layer of well-dispersed phosphors in a glass matrix is broadly applicable for a large scale planar lighting system. When combined with a nanoscale surface-roughening technique of the substrate, enhanced luminescence efficiency is achieved as a result of effective light extraction. Y. S. Cho and co-workers describe this simple processing methodology with experimental evidences on page 1081.