Thin Films of Barium Strontium Titanate from the Viewpoint of Light-Based Applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F18%3A43953337" target="_blank" >RIV/49777513:23640/18:43953337 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/ICTON.2018.8473895" target="_blank" >http://dx.doi.org/10.1109/ICTON.2018.8473895</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ICTON.2018.8473895" target="_blank" >10.1109/ICTON.2018.8473895</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thin Films of Barium Strontium Titanate from the Viewpoint of Light-Based Applications

Popis výsledku v původním jazyce

In this paper we report results from optical transmittance spectroscopy complemented with data on structure from XRD measurements to determine optical properties of a series of as-deposited and annealed (at 900 C) BaSrTiO3 (BST) thin films deposited by RF magnetron sputtering. The members of the series differ by the substrate temperature and additional oxygen to accompany argon in the deposition chamber. The perovskite structure with weak preferred [110] orientation was detected for annealed BST thin films whilst the as-deposited films were amorphous. Dispersive optical properties – refractive indices, absorption coefficients and optical band gaps were determined from transmittance spectra. After annealing refractive indices increase to prove the densification of material accompanied by the thickness shrinkage. Optical band gaps calculated either by Tauc procedure or determined as iso-absorption levels are also found to be deposition dependent.

Název v anglickém jazyce

Thin Films of Barium Strontium Titanate from the Viewpoint of Light-Based Applications

Popis výsledku anglicky

In this paper we report results from optical transmittance spectroscopy complemented with data on structure from XRD measurements to determine optical properties of a series of as-deposited and annealed (at 900 C) BaSrTiO3 (BST) thin films deposited by RF magnetron sputtering. The members of the series differ by the substrate temperature and additional oxygen to accompany argon in the deposition chamber. The perovskite structure with weak preferred [110] orientation was detected for annealed BST thin films whilst the as-deposited films were amorphous. Dispersive optical properties – refractive indices, absorption coefficients and optical band gaps were determined from transmittance spectra. After annealing refractive indices increase to prove the densification of material accompanied by the thickness shrinkage. Optical band gaps calculated either by Tauc procedure or determined as iso-absorption levels are also found to be deposition dependent.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

International Conference on Transparent Optical Networks

ISBN

978-1-5386-6604-3

ISSN

2162-7339

e-ISSN

neuvedeno

Počet stran výsledku

4

Strana od-do

—

Název nakladatele

IEEE Computer Society

Místo vydání

Bucharest

Místo konání akce

Bukurešť

Datum konání akce

1. 7. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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