Degradation of Ag/Si multilayers during heat treatments

K. Kapta, A. Csik, L. Daróczi, Z. Papp, D. L. Beke, G. A. Langer, A. L. Greer, Z. H. Barber, M. Kis-Varga

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2 Citations (Scopus)


Microstructure changes during annealing of nano-crystalline silver and amorphous silicon multilayers (Ag/a-Si) have been studied by X-ray diffraction and transmission electron microscopy. The dc-magnetron sputtered Ag/a-Si multilayers remained stable even after annealing at 523K for 10h, and microstructural changes occurred only above 600K. The degradation of Ag/a-Si multilayers can be described by the increase of size of Ag grains, formation of grooves and pinholes at Ag grain boundaries and by the diffusion of silicon atoms through the silver grain boundaries and along the Ag/a-Si interfaces. This results in thinning of a-Si layers, and in formation of Ag granulates after longer annealing times.

Original languageEnglish
Pages (from-to)85-89
Number of pages5
Issue number1
Publication statusPublished - Sep 12 2003



  • Ag/a-Si
  • Grain boundary diffusion
  • Interfaces mass transport
  • Multilayer

ASJC Scopus subject areas

  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films

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