Abstract

We have investigated the diffusion products occurring after photodiffusion of Ag in GeS2 films at room temperature and after annealing up to 430 °C. Quantitative data regarding the host film composition and the amount of diffused silver has been gathered using Rutherford backscattering spectrometry. The structure of the glassy host and the changes appearing after silver photodiffusion and annealing are characterized using Raman spectroscopy. The crystalline diffusion products are depicted and their size calculated using X-ray diffraction. We have found that silver reacts with the host to form Ag2S and Ag2GeS3 and this leads to formation of Ge-rich backbone and overall nanostructured heterogeneous medium. Annealing at temperatures close to the glass transition temperature affects the backbone and brings about the appearance of a new diffusion product - Ag8GeS6.

Original languageEnglish (US)
Pages (from-to)1454-1459
Number of pages6
JournalJournal of Non-Crystalline Solids
Volume353
Issue number13-15 SPEC. ISS.
DOIs
StatePublished - May 15 2007

Fingerprint

Crystallization
Silver
silver
Annealing
crystallization
Thin films
annealing
products
thin films
Rutherford backscattering spectroscopy
glass transition temperature
Spectrometry
Raman spectroscopy
backscattering
Crystalline materials
X ray diffraction
Temperature
room temperature
Chemical analysis
diffraction

Keywords

  • Chalcogenides
  • Photoinduced effects
  • Raman spectroscopy
  • Rutherford backscattering
  • X-ray diffraction

ASJC Scopus subject areas

  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials

Cite this

Crystallization effects in annealed thin GeS2 films photodiffused with Ag. / Balakrishnan, Murali; Kozicki, Michael; Poweleit, Christian D.; Bhagat, Shekhar; Alford, Terry; Mitkova, Maria.

In: Journal of Non-Crystalline Solids, Vol. 353, No. 13-15 SPEC. ISS., 15.05.2007, p. 1454-1459.

Research output: Contribution to journalArticle

Balakrishnan, Murali ; Kozicki, Michael ; Poweleit, Christian D. ; Bhagat, Shekhar ; Alford, Terry ; Mitkova, Maria. / Crystallization effects in annealed thin GeS2 films photodiffused with Ag. In: Journal of Non-Crystalline Solids. 2007 ; Vol. 353, No. 13-15 SPEC. ISS. pp. 1454-1459.
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abstract = "We have investigated the diffusion products occurring after photodiffusion of Ag in GeS2 films at room temperature and after annealing up to 430 °C. Quantitative data regarding the host film composition and the amount of diffused silver has been gathered using Rutherford backscattering spectrometry. The structure of the glassy host and the changes appearing after silver photodiffusion and annealing are characterized using Raman spectroscopy. The crystalline diffusion products are depicted and their size calculated using X-ray diffraction. We have found that silver reacts with the host to form Ag2S and Ag2GeS3 and this leads to formation of Ge-rich backbone and overall nanostructured heterogeneous medium. Annealing at temperatures close to the glass transition temperature affects the backbone and brings about the appearance of a new diffusion product - Ag8GeS6.",
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AU - Kozicki, Michael

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AU - Alford, Terry

AU - Mitkova, Maria

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