Abstract:
:Amorphous thin films from Ge-As-Te system were prepared by pulsed laser deposition to study their intrinsic photostability, morphology, chemical composition, structure and optical properties. Photostability of fabricated layers was studied by spectroscopic ellipsometry within as-deposited as well as relaxed (annealed) layers. For irradiation, laser sources operating at three wavelengths in band gap region of the studied materials were employed. The results show that lowest values of photorefraction accompanied with lowest changes of band gap values were exhibited by Ge20As20Te60 thin films, which are therefore considered as the layers with highest photostability in relaxed state. The structure of the films is discussed based on Raman scattering spectroscopy data.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Hawlová P,Verger F,Nazabal V,Boidin R,Němec Pdoi
10.1038/srep09310subject
Has Abstractpub_date
2015-03-23 00:00:00pages
9310issn
2045-2322pii
srep09310journal_volume
5pub_type
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