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Possible mechanism of Ag photodiffusion in a‐As 2 S 3 thin films
Author(s) -
Sava Florinel,
Popescu Mihai,
Lőrinczi Adam,
Velea Alin
Publication year - 2013
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201248517
Subject(s) - chalcogenide , thin film , mechanism (biology) , materials science , amorphous solid , optoelectronics , absorption (acoustics) , laser , irradiation , layer (electronics) , diode , diffusion , optics , nanotechnology , composite material , crystallography , chemistry , physics , quantum mechanics , nuclear physics , thermodynamics
Monitoring the silver photodiffusion in thin amorphous As 2 S 3 film is addressed with a new experimental setup. A possible photo‐diffusion mechanism of silver into the a‐As 2 S 3 thin film under green laser diode light ( λ = 532 nm) irradiation is proposed. The proposed mechanism is based on a gradual filling of the structural voids existing in the network of the thin chalcogenide layer. This mechanism is supported by XRD measurements, optical absorption, and modeling data.