Forming glasses from Se and Te

Bruno Bureau, Catherine Boussard-Pledel, Pierre Lucas, Xianghua Zhang, Jacques Lucas

Research output: Contribution to journalReview article

85 Scopus citations

Abstract

Despite being close neighbors on the Periodic Table, selenium and tellurium present a totally different abilities to form glasses. Se is a very good glass former, and gives rise to numerous glass compositions which are popular for their transparency in the infrared range and their stability against crystallization. These glasses can be shaped into sophisticated optical devices such as optical fibers, planar guides or lenses. Nevertheless, their transparencies are limited at about 12 μm (depending on the thickness of the optical systems) due to the relatively small mass of the Se element. On the other hand, tellurium is heavier and its use in substitution for Se permits to shift the IR cutoff beyond 20 μm. However, the semimetallic nature of Te limits its glass formation ability and this glass family is known to be unstable and consequently has found application as phase change material in the Digital Versatile Disk (DVD) technology. In this paper, after a review of selenide glasses and their applications, it will be shown how, in a recent past, it has been possible to stabilize tellurium glasses by introducing new elements like Ga or I in their compositions.

Original languageEnglish (US)
Pages (from-to)4337-4350
Number of pages14
JournalMolecules
Volume14
Issue number11
DOIs
StatePublished - Nov 2009

Keywords

  • Glass
  • Infrared
  • Selenium
  • Tellurium

ASJC Scopus subject areas

  • Analytical Chemistry
  • Chemistry (miscellaneous)
  • Molecular Medicine
  • Pharmaceutical Science
  • Drug Discovery
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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  • Cite this

    Bureau, B., Boussard-Pledel, C., Lucas, P., Zhang, X., & Lucas, J. (2009). Forming glasses from Se and Te. Molecules, 14(11), 4337-4350. https://doi.org/10.3390/molecules14114337