On photoinduced volume changes in chalcogenide glasses

S. Kugler, J. Hegedüs, R. Lukács

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We proposed a new explanation of photo-induced volume changes in chalcogenide glasses. In our computer simulation we observed covalent bond breaking in the network caused by excited electrons, whereas holes contribute to the formation of inter-chain bonds. The interplay between photo-induced bond breaking and inter-chain bond formation leads to either volume expansion or shrinkage. In the non-ideal case, only a part of the processes is reversible and the total expansion includes the reversible and irreversible changes. Finally we investigate the structural properties of flatly and obliquely deposited chalcogenide thin films. Different void sizes can cause different photoinduced volume changes.

Original languageEnglish
Pages (from-to)37-42
Number of pages6
JournalJournal of Optoelectronics and Advanced Materials
Volume9
Issue number1
Publication statusPublished - Jan 2007

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Glass
Covalent bonds
glass
Structural properties
expansion
covalent bonds
shrinkage
Thin films
Electrons
voids
Computer simulation
computerized simulation
causes
thin films

Keywords

  • Chalcogenide glasses
  • Computer simulation
  • Photoinduced volume changes

ASJC Scopus subject areas

  • Materials Science(all)
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

Cite this

On photoinduced volume changes in chalcogenide glasses. / Kugler, S.; Hegedüs, J.; Lukács, R.

In: Journal of Optoelectronics and Advanced Materials, Vol. 9, No. 1, 01.2007, p. 37-42.

Research output: Contribution to journalArticle

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