Intense visible emissions from d0 ions-doped silicate glasses

Abstract

A series of d0 ions, i.e., Ti4+, Zr4+, Nb5+, Ta6+, Mo6+, and W6+, has been incorporated into silicate glass matrix by utilizing a conventional melt-quenching method, and their optical properties have been examined. When the resultant glasses are excited by ultraviolet light, intense emissions are observed in the blue to orange wavelength regions of the visible spectrum, depending on the kind of d0 ions. We suggest that the nd0 (n = 3, 4, 5) energy levels play an important role in the emergence of intense visible emissions. The results indicate that glasses doped with d0 ions are potential materials in displays and nonlinear devices. © 2008 The Ceramic Society of Japan. All rights reserved.