Temperature dependence of the optical properties of Ba0.75Sr0.25TiO3 thin films

Železný, V.; Chvostová, D.; Pajasová, L.; Jelínek, M.; Kocourek, T.; Daniš, S.; Valvoda, V.

doi:10.1016/j.tsf.2013.11.147

Cited by 10 publications

(12 citation statements)

References 15 publications

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“…The solid line is the BP fit of the Eg average at each temperature. From the experimental data, Eg decreases when the temperature increases, according to [14,15,17]. The results of XRD confirm some samples for the temperatures 375 °C, 435 °C, 495 °C, and 549 °C having different crystallinity degrees, which suggests the presence of both crystalline and amorphous phases.…”

Section: Resultsmentioning

confidence: 65%

“…The E g values used in this work were taken from the literature [22][23][24]. The authors explain these differences due to: (a) The change in crystal structure [11]; (b) phase change [15]; (c) the increase in interatomic space due to excess volume and absence of long-range order in the lattice, in addition to the Bupein-Moss effect due to oxygen vacancies [14]; (d) the change in the size of the microstructure [16]; and (e) the presence of amorphous material and the effect of quantum size [25][26][27][28].…”

Section: Resultsmentioning

confidence: 99%

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Temperature–Power Simultaneous Effect on Physical Properties of BaxSr1−x TiO3 Thin Films Deposited by RF–Magnetron Cosputtering for 0 ≤ x ≤1

et al. 2018

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The combined effect on the variation of the in-situ deposition temperature and the variation of the applied power on the deposition rate (DR), gap energy (Eg), and resistivity (ρ) in barium strontium titanate thin films, deposited into RF (radio frequency)–magnetron cosputtering equipment, are presented in this research. The simultaneous action of two magnetrons (BaTiO3 and SrTiO3) is explained using the first and second derivative of Boltzmann’s sigmoidal equation. This found that a deposition gradient is a very novel analysis. Using the color-code lines built through MATLAB® and analyzing the trend information, taking into account the influence of the calculated “x” parameter, by means of the Boltzmann’s sigmoidal equation fit, we propose a method to set up an RF–magnetron cosputtering system to predict the DR(x,T), Eg(x,T), and ρ(x,T) values of BaxSr1−xTiO3 solid solutions with 0 ≤ x ≤ 1 for amorphous and crystalline phases. This method can be a versatile tool to optimize the deposition process with, or without, in situ deposition temperature.

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Section: Resultsmentioning

confidence: 65%

Section: Resultsmentioning

confidence: 99%

Temperature–Power Simultaneous Effect on Physical Properties of BaxSr1−x TiO3 Thin Films Deposited by RF–Magnetron Cosputtering for 0 ≤ x ≤1

et al. 2018

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“…Comparing Eg between 375-495 °C and 45-75 W ranges, when the temperature increases the Eg too, this behaviour can be attributed to Ba content and the amorphous phase. From the experimental data, Eg decreases when the temperature increases according to [14,15,17]. Another possible reason for larger values of Eg in the amorphous phase is the existence of the density of states as explained by Davis and Mott [18].…”

Section: Preprints (Wwwpreprintsorg) | Not Peer-reviewed | Postedmentioning

confidence: 97%

“…The authors explain these differences due to: a) the change in crystal structure [11], b) phase change [15], c) the increase in interatomic space due to excess volume and absence of long-range order in the lattice, in addition to the Burstein-Moss effect due to oxygen vacancies [14] d) the change in size of the microstructure [16], e) the presence of amorphous material and the effect of quantum size [25,26,28].…”

Section: Preprints (Wwwpreprintsorg) | Not Peer-reviewed | Postedmentioning

confidence: 99%

“…In the BST chemical formula have been investigated in some physical properties such as resistive switching [5,6], resistivity (RST) in crystalline and amorphous phases [7,8,9], the thickness [10], the gap energy (Eg) [11,12,13]. The Eg as a function of temperature and its effect on the improvement of crystallinity [14,15] and the amorphous to crystalline phase change [16,17,18].…”

Section: Introductionmentioning

confidence: 99%

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Set-Up Method on Properties of BaXSr1-XTiO3 Thin Films Deposited by RF-Magnetron Co-Sputtering by Projecting Temperature and Stoichiometric Effect

Estrada-Martínez¹,

Melo-Banda²,

Páramo-García³

et al. 2017

Preprint

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Thin films (100-400 nm) of BaxSr1-xTiO3 (0≤x≤1) deposited in RF-magnetron co-sputtering equipment are presented in this research work. The change of deposition rate, gap energy, and resistivity as a function of temperature-applied power change in the growth parameters was studied through the ISO colour-code lines constructed with MATLAB:By analysing the trend information and take into account the influence of the calculated "x" parameter with the Boltzmann profile fitting is proposed a method to allow a controlled set up of the RFmagnetron co-sputtering system and predict the Eg and resistivity values in the BaxSr1-xTiO3 solid solution with 0≤x≤1 for amorphous and crystalline phases. Also, a versatile tool to optimise the deposition process and material properties.keywords: BaxSr1-xTiO3 films; boltzmann modelling; optical band gap; deposition rate; stoichiometric content Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted:

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Investigation of structure, optical, nonlinear optical, dielectrical properties and electronic results of La0.01Ba0.99TiO3, Sm0.5Sr0.5CoO3 and Sm0.5Sr0.5CoO3/La0.01Ba0.99TiO3 thin films grown on quartz substrates using pulsed laser deposition (PLD) technique

Moez

Kim

Ali

2021

J Opt

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Temperature dependence of the optical properties of Ba0.75Sr0.25TiO3 thin films

Cited by 10 publications

References 15 publications

Temperature–Power Simultaneous Effect on Physical Properties of BaxSr1−x TiO3 Thin Films Deposited by RF–Magnetron Cosputtering for 0 ≤ x ≤1

Temperature–Power Simultaneous Effect on Physical Properties of BaxSr1−x TiO3 Thin Films Deposited by RF–Magnetron Cosputtering for 0 ≤ x ≤1

Set-Up Method on Properties of Ba<sub>X</sub>Sr<sub>1-X</sub>TiO<sub>3</sub> Thin Films Deposited by RF-Magnetron Co-Sputtering by Projecting Temperature and Stoichiometric Effect

Investigation of structure, optical, nonlinear optical, dielectrical properties and electronic results of La0.01Ba0.99TiO3, Sm0.5Sr0.5CoO3 and Sm0.5Sr0.5CoO3/La0.01Ba0.99TiO3 thin films grown on quartz substrates using pulsed laser deposition (PLD) technique

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