DIELECTRIC PROPERTIES OF ATOMIC LAYER DEPOSITED THIN-FILM BARIUM STRONTIUM TITANATE

2008 ◽  
Vol 102 (1) ◽  
pp. 29-36 ◽  
Author(s):  
M. TYUNINA ◽  
M. PLEKH ◽  
J. LEVOSKA ◽  
M. VEHKAMÄKI ◽  
M. HATANPÄÄ ◽  
...  
Keyword(s):  
Thin Film ◽  
Dielectric Properties ◽  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Atomic Layer ◽  
Barium Strontium

Radio Frequency (RF) Magnetron Sputtered Barium Strontium Titanate (BST) Thin Film

2017 ◽  
Vol 727 ◽  
pp. 942-946 ◽  
Author(s):  
Juan Li ◽  
Cong Chun Zhang ◽  
Yan Lei Wang ◽  
Yang Gao ◽  
Xiao Lin Zhao
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Dielectric Properties ◽  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Perovskite Phase ◽  
Rf Magnetron Sputtering ◽  
Barium Strontium ◽  
Metal Insulator Metal ◽  
Bst Thin Film

Barium strontium titanate (BST) thin films with excellent dielectric properties are deposited by on-axis RF magnetron sputtering system. The effects of composition of the target and oxygen partial pressure on the microstructure of BST thin film have been investigated. The dielectric properties of the thin films are investigated. The results show that composition of BST thin film deposited with pure argon ambient by the target with 30atm% excess of Ba and Sr is stoichiometric. Perovskite phase can be observed in the thin film annealed in oxygen at 750 °C for 30 min. A metal-insulator-metal (MIM) capacitor is fabricated by microfabrication technique. The capacitance value at 2 GHz is 0.417 pF and 1.42 pF for 50 nm and 90 nm BST thin film respectively, and the leakage current density is 6×10-6 A/cm2 and 5.35×10-8 A/cm2 respectively.

Preparation of Barium Strontium Titanate Thin Film by Spray Deposition

2002 ◽  
Vol 45 (1) ◽  
pp. 3-12
Author(s):  
Y. Takeshima ◽  
K. Nishita ◽  
K. Tanaka ◽  
Y. Sakabe
Keyword(s):  
Thin Film ◽  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Spray Deposition ◽  
Barium Strontium ◽  
Titanate Thin Film

Synthesis and characterizations of metal ions doped barium strontium titanate (BST) nanomaterials for photocatalytic and electrical applications: A mini review

2021 ◽  
Vol 112 (8) ◽  
pp. 665-677
Author(s):  
Kiflom Gebremedhn Kelele ◽  
Aschalew Tadesse ◽  
Tegene Desalegn ◽  
Suresh Ghotekar ◽  
Ruthramurthy Balachandran ◽  
...  
Keyword(s):  
Solid Solution ◽  
Dielectric Properties ◽  
Barium Titanate ◽  
Metal Ions ◽  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Metal Ion ◽  
Dielectric Characteristics ◽  
Characterization Methods ◽  
Barium Strontium

Abstract The ferroelectric barium strontium titanate (Ba1-xSrxTiO3) is a homogeneous solid solution prepared from the mixture of barium titanate (BaTiO3), strontium titanate (SrTiO3) and titanium (IV) isopropoxide. Barium strontium titanate (BST) nanomaterials with improved permittivity and dielectric properties due to their nano-properties have attracted great interest for extensive and versatile applications as super capacitors, dielectrics, ceramics and catalysts. Introduction of metal ion dopants into the parent system of BST significantly alters its structural, morphological, electrical, optical and dielectric characteristics. This review is aimed at addressing synthesis, characterization methods, photocatalytic and electrical applications of metal ions doped BST nanomaterials. The effect of doping BST, through metal ions, on its properties and application with most probable reasons have been thoroughly discussed.

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