Selenium-molybdenum-based colouration of alkali silicate glasses

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Abstract

The interaction between selenium and molybdenum in reduced alkali silicate melts, resulting in red glasses has been studied. The oxidation state of Mo is Mo(VI) as evidenced by XANES and ESCA results. Selenium is present in a reduced state, as indicated by ultraviolet/visible spectroscopy and XANES. The colour is described by ultraviolet/visible spectra and CIE colour coordinates. The main absorption peaks are at 450 and 540 nm. Similar bands are reported for MoOSe32-. Several commonly used glass components must be avoided in the batch, as they prevent formation of the red colour.

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  • Physical Sciences
  • Natural Sciences
Original languageEnglish
Pages (from-to)213-221
JournalGlass Technology: European Journal of Glass Science and Technology Part A
Volume48
Issue number5
Publication statusPublished - 2007
Publication categoryResearch
Peer-reviewedYes