Vacuum thermal evaporated (AsSe)(1-x)(AgI)(x) films : studies by spectroscopic ellipsometry and atomic-force microscopy (CROSBI ID 208769)
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Podaci o odgovornosti
Hineva, Temenuga ; Szekeres, P ; Petkov, M ; Anastasescu, M ; Gartner, Lu ; Salamon, Krešimir
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Vacuum thermal evaporated (AsSe)(1-x)(AgI)(x) films : studies by spectroscopic ellipsometry and atomic-force microscopy
Vacuum thermal evaporated (AsSe)1-x(AgI)x films with different compositions (x = 5, 15, 20 and 30 mol % ) have been studied by spectroscopic ellipsometry and atomic-force microscopy. The ellipsometric results have shown that the optical constants and optical band gap energy values vary with increasing AgI content in the films. Additional XRD measurements revealed that the films are amorphous with more ordered structures at larger x values. AFM images visualized that randomly distributed hillocks emerged from the smooth film surface yielding an rms roughness of 0.6-1.0 nm with a tendency to increase with increasing AgI content.
Chalcogenide thin films; Optical properties; AFM imaging; Spectroscopic ellipsometry
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