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Adsorption‐Desorption Transient Measurements of the Initial Stages of Growth of Thin Ag Films on W
Author(s) -
Michailov E.
Publication year - 1991
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170260611
Subject(s) - supersaturation , desorption , adsorption , growth rate , thin film , layer (electronics) , analytical chemistry (journal) , chemistry , materials science , nanotechnology , chromatography , organic chemistry , geometry , mathematics
On the basis of precise analysis of series adsorption‐desorption transients (ADT) – registered mass‐spectrometrically (MS) around the transition points from adsorption equilibrium to real film growth, the critical parameters of phase formation process for Ag on W – coverage, impingement rate and supersaturation were estimated. It was established that the film growth starts at coverages ∼ (2.05 – 2.15) × 10 15 cm −2 at hardly appreciable supersaturations, following the “Stranski‐Krastanov” (SK) growth mode – through the formation of three‐dimensional (3D) clusters on the top of complete second Ag layer.