Surface morphology of as-deposited and illuminated As-Se chalcogenide thin films

M. L. Trunov, P. Nagy, V. Takáts, P. M. Lytvyn, S. Kökényesi, E. Kálmán

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The role of the composition and of the related changes of the structure in the formation of the surface of amorphous AsxSe1-x (0 <x <0.5) layers before and after light treatment was investigated by direct measurements of the surface roughness at nanometer-scale and surface deformations at micrometer-scale under influence of illumination. It was established that the surface roughness of the films, deposited by vacuum thermal evaporation, decreased with increasing As content, especially in compositions 0.1 ≤ x ≤ 0.3, where the maximum light stimulated surface deformations (localized expansion) occurs. Both relate to the rigidity percolation range and the maximum photoplastic effects, which are not directly connected to the known photodarkening effect, since it is minimal for these compositions.

Original languageEnglish
Pages (from-to)1993-1997
Number of pages5
JournalJournal of Non-Crystalline Solids
Volume355
Issue number37-42
DOIs
Publication statusPublished - Oct 1 2009

Fingerprint

Surface morphology
Thin films
surface roughness
thin films
Surface roughness
Chemical analysis
Photochromism
Vacuum evaporation
Thermal evaporation
rigidity
Rigidity
micrometers
Lighting
illumination
evaporation
vacuum
expansion

Keywords

  • Atomic force and scanning tunneling microscopy
  • Chalcogenides
  • Films and coatings
  • Laser-matter interactions
  • Optical microscopy
  • Photoinduced effects
  • Vapor phase deposition

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry

Cite this

Surface morphology of as-deposited and illuminated As-Se chalcogenide thin films. / Trunov, M. L.; Nagy, P.; Takáts, V.; Lytvyn, P. M.; Kökényesi, S.; Kálmán, E.

In: Journal of Non-Crystalline Solids, Vol. 355, No. 37-42, 01.10.2009, p. 1993-1997.

Research output: Contribution to journalArticle

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