Optical properties and surface structuring of Ge20Sb5S75 amorphous chalcogenide thin films deposited by spin-coating and vacuum thermal evaporation

Šlang, Stanislav; Janíček, Petr; Pálka, Karel; Loghina, Liudmila; Vlček, Miroslav

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Optical properties and surface structuring of Ge20Sb5S75 amorphous chalcogenide thin films deposited by spin-coating and vacuum thermal evaporation

Šlang, Stanislav; Janíček, Petr; Pálka, Karel; Loghina, Liudmila; Vlček, Miroslav

10.1016/j.matchemphys.2017.10.025

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URI: https://hdl.handle.net/10195/72611

Datum publikování: 2018

Typ dokumentu: article

Abstrakt:

Thin amorphous films of Ge20Sb5S75 composition have been deposited by spin-coating and vacuum thermal evaporation techniques. Their optical properties were investigated by spectroscopic ellipsometry in UV-NIR spectral region. We report on the comparison of thermo- and photo-induced changes in optical parameters, structure and chemical resistance of studied samples. Induced changes of films structure connected with changes of chemical stability were exploited for their surface structuring by photolithography and electron beam lithography.

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