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Nanoporous surface of infrared transparent chalcogenide glass–ceramics by chemical etching

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Title: Nanoporous surface of infrared transparent chalcogenide glass–ceramics by chemical etching
Authors: Hubert, Mathieu1, Calvez, Laurent1 laurent.calvez@univ-rennes1.fr, Tessier, Franck1, Lucas, Pierre2 pierre@arizona.edu, Zhang, Xiang-Hua1
Source: Materials Research Bulletin. Dec2012, Vol. 47 Issue 12, p4076-4081. 6p.
Subjects: Porous materials, Nanostructured materials, Chalcogenides, Glass-ceramics, Crystal etching, Thickness measurement, Solution (Chemistry)
Abstract: Abstract: The chemical etching of the 80GeSe2–20Ga2Se3 chalcogenide glass–ceramics was performed in acidic and basic solutions. Etching in acid solution is shown to preferentially dissolve the crystalline phase while basic solutions preferentially attack the glassy phase. The selective etching of the crystals creates a porous layer with a thickness of some hundreds of nanometers composed of pores of 100nm in size on the surface of the glass–ceramics. It is shown that the creation of the porous layer increases the infrared transmission of the materials and allows the functionalization with silane molecules. The functionalized glass–ceramics show enhanced detection sensitivity. Therefore, they represent promising materials for the design of optical elements for sensing applications in the infrared range. [Copyright &y& Elsevier]
Copyright of Materials Research Bulletin is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 83165262
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PubTypeId: academicJournal
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  Data: Nanoporous surface of infrared transparent chalcogenide glass–ceramics by chemical etching
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  Data: <searchLink fieldCode="AR" term="%22Hubert%2C+Mathieu%22">Hubert, Mathieu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Calvez%2C+Laurent%22">Calvez, Laurent</searchLink><relatesTo>1</relatesTo><i> laurent.calvez@univ-rennes1.fr</i><br /><searchLink fieldCode="AR" term="%22Tessier%2C+Franck%22">Tessier, Franck</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lucas%2C+Pierre%22">Lucas, Pierre</searchLink><relatesTo>2</relatesTo><i> pierre@arizona.edu</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Xiang-Hua%22">Zhang, Xiang-Hua</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Materials+Research+Bulletin%22">Materials Research Bulletin</searchLink>. Dec2012, Vol. 47 Issue 12, p4076-4081. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Porous+materials%22">Porous materials</searchLink><br /><searchLink fieldCode="DE" term="%22Nanostructured+materials%22">Nanostructured materials</searchLink><br /><searchLink fieldCode="DE" term="%22Chalcogenides%22">Chalcogenides</searchLink><br /><searchLink fieldCode="DE" term="%22Glass-ceramics%22">Glass-ceramics</searchLink><br /><searchLink fieldCode="DE" term="%22Crystal+etching%22">Crystal etching</searchLink><br /><searchLink fieldCode="DE" term="%22Thickness+measurement%22">Thickness measurement</searchLink><br /><searchLink fieldCode="DE" term="%22Solution+%28Chemistry%29%22">Solution (Chemistry)</searchLink>
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  Data: Abstract: The chemical etching of the 80GeSe2–20Ga2Se3 chalcogenide glass–ceramics was performed in acidic and basic solutions. Etching in acid solution is shown to preferentially dissolve the crystalline phase while basic solutions preferentially attack the glassy phase. The selective etching of the crystals creates a porous layer with a thickness of some hundreds of nanometers composed of pores of 100nm in size on the surface of the glass–ceramics. It is shown that the creation of the porous layer increases the infrared transmission of the materials and allows the functionalization with silane molecules. The functionalized glass–ceramics show enhanced detection sensitivity. Therefore, they represent promising materials for the design of optical elements for sensing applications in the infrared range. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Materials Research Bulletin is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.materresbull.2012.08.056
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      – Code: eng
        Text: English
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        PageCount: 6
        StartPage: 4076
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      – SubjectFull: Porous materials
        Type: general
      – SubjectFull: Nanostructured materials
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      – SubjectFull: Chalcogenides
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      – SubjectFull: Glass-ceramics
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      – SubjectFull: Crystal etching
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      – SubjectFull: Thickness measurement
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      – SubjectFull: Solution (Chemistry)
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              Text: Dec2012
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