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Issue 34, 2012
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Structural properties of solution processed Ge23Sb7S70 glass materials

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Abstract

Solution-processing of chalcogenide glass materials has many benefits for the fabrication of photonic devices. We report on the structural properties of Ge23Sb7S70 glass during solution-processing. The molecular and micro-structure of the bulk glass and the n-propylamine solution, as well as the spin-coated thin films and post-irradiated films are analyzed by Raman spectroscopy, scanning electron microscopy and energy dispersive X-ray spectroscopy. We find the vibrational spectral fingerprint of Ge4S104−-units in the amine solutions as well as in the spin-coated films, indicating a similar molecular structure of solutions and solution-processed films, which differs from the bulk glass. Moreover, the spin-coated films exhibit nanopores, and change their composition during irradiation such that sulfur escapes from the film while oxygen gets absorbed.

Graphical abstract: Structural properties of solution processed Ge23Sb7S70 glass materials

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Publication details

The article was received on 10 Apr 2012, accepted on 21 Jul 2012 and first published on 31 Jul 2012


Article type: Paper
DOI: 10.1039/C2JM32235H
Citation: J. Mater. Chem., 2012,22, 17848-17852
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    Structural properties of solution processed Ge23Sb7S70 glass materials

    M. Waldmann, J. D. Musgraves, K. Richardson and C. B. Arnold, J. Mater. Chem., 2012, 22, 17848
    DOI: 10.1039/C2JM32235H

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