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

Mathieu Hubert; Laurent Calvez; Franck Tessier; Pierre Lucas; Xiang Hua Zhang

doi:10.1016/j.materresbull.2012.08.056

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

Mathieu Hubert, Laurent Calvez, Franck Tessier, Pierre Lucas, Xiang Hua Zhang

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The chemical etching of the 80GeSe ₂-20Ga ₂Se ₃ 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 100 nm 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.

Original language	English (US)
Pages (from-to)	4076-4081
Number of pages	6
Journal	Materials Research Bulletin
Volume	47
Issue number	12
DOIs	https://doi.org/10.1016/j.materresbull.2012.08.056
State	Published - Dec 2012

Keywords

A. Chalcogenides
A. Glasses
A. Microporous materials
D. Optical properties
D. Surface properties

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.materresbull.2012.08.056

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@article{4abaedab191040f6ade8c6897d031516,

title = "Nanoporous surface of infrared transparent chalcogenide glass-ceramics by chemical etching",

abstract = "The chemical etching of the 80GeSe 2-20Ga 2Se 3 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 100 nm 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.",

keywords = "A. Chalcogenides, A. Glasses, A. Microporous materials, D. Optical properties, D. Surface properties",

author = "Mathieu Hubert and Laurent Calvez and Franck Tessier and Pierre Lucas and Zhang, {Xiang Hua}",

note = "Funding Information: This work has been supported by the French DGA (D{\'e}l{\'e}gation G{\'e}n{\'e}rale pour l{\textquoteright}Armement) . This research was also supported by NSF-ECCS under grant no. 1201865 .",

year = "2012",

month = dec,

doi = "10.1016/j.materresbull.2012.08.056",

language = "English (US)",

volume = "47",

pages = "4076--4081",

journal = "Materials Research Bulletin",

issn = "0025-5408",

publisher = "Elsevier Ltd",

number = "12",

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TY - JOUR

T1 - Nanoporous surface of infrared transparent chalcogenide glass-ceramics by chemical etching

AU - Hubert, Mathieu

AU - Calvez, Laurent

AU - Tessier, Franck

AU - Lucas, Pierre

AU - Zhang, Xiang Hua

N1 - Funding Information: This work has been supported by the French DGA (Délégation Générale pour l’Armement) . This research was also supported by NSF-ECCS under grant no. 1201865 .

PY - 2012/12

Y1 - 2012/12

N2 - The chemical etching of the 80GeSe 2-20Ga 2Se 3 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 100 nm 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.

AB - The chemical etching of the 80GeSe 2-20Ga 2Se 3 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 100 nm 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.

KW - A. Chalcogenides

KW - A. Glasses

KW - A. Microporous materials

KW - D. Optical properties

KW - D. Surface properties

UR - http://www.scopus.com/inward/record.url?scp=84868200652&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84868200652&partnerID=8YFLogxK

U2 - 10.1016/j.materresbull.2012.08.056

DO - 10.1016/j.materresbull.2012.08.056

M3 - Article

AN - SCOPUS:84868200652

SN - 0025-5408

VL - 47

SP - 4076

EP - 4081

JO - Materials Research Bulletin

JF - Materials Research Bulletin

IS - 12

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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