“…The capacitance has a small frequency dispersion in the high-frequency range (100 kHz to 1 MHz). Many ferroelectric thin films exhibit the same frequency-dependent dielectric behaviour [25,36-38]. Figure 7 Dielectric constants of the BST films prepared with different Ba 2+ /Sr 2+ ratios.…”
Section: Resultsmentioning
confidence: 99%
“…The capacitance has a small frequency dispersion in the high-frequency range (100 kHz to 1 MHz). Many ferroelectric thin films exhibit the same frequency-dependent dielectric behaviour [25,[36][37][38].…”
Ba x Sr (1-x) TiO 3 (BST) thin films are in situ deposited on a Ti matrix through the micro-arc oxidation technique, using a mixed aqueous solution of Ba(OH) 2 •8H 2 O, Sr(OH) 2 •8H 2 O and 0.05 M EDTA as the electrolyte. The influence of the Ba 2+ /Sr 2+ ratio on the phase composition, microstructure and properties of the BST thin films is investigated. Ba 0.6 Sr 0.4 TiO 3 , Ba 0.5 Sr 0.5 TiO 3 , and Ba 0.4 Sr 0.6 TiO 3 thin films have a cubic phase, while Ba 0.8 Sr 0.2 TiO 3 and Ba 0.7 Sr 0.3 TiO 3 thin films have a tetragonal phase. When the concentration of Ba 2+ in the electrolyte surpasses that of Sr 2+ , the width of micro-arc holes and the surface roughness of the film grow as the Ba 2+ concentration rises. Furthermore, the dielectric and ferroelectric properties of BST films are favorably connected with the surface morphology. When the Ba 2+ concentration is 0.06 M, the film has the best compactness and smoothness. In addition, the highest capacitance and lowest dielectric loss are achieved.
“…The capacitance has a small frequency dispersion in the high-frequency range (100 kHz to 1 MHz). Many ferroelectric thin films exhibit the same frequency-dependent dielectric behaviour [25,36-38]. Figure 7 Dielectric constants of the BST films prepared with different Ba 2+ /Sr 2+ ratios.…”
Section: Resultsmentioning
confidence: 99%
“…The capacitance has a small frequency dispersion in the high-frequency range (100 kHz to 1 MHz). Many ferroelectric thin films exhibit the same frequency-dependent dielectric behaviour [25,[36][37][38].…”
Ba x Sr (1-x) TiO 3 (BST) thin films are in situ deposited on a Ti matrix through the micro-arc oxidation technique, using a mixed aqueous solution of Ba(OH) 2 •8H 2 O, Sr(OH) 2 •8H 2 O and 0.05 M EDTA as the electrolyte. The influence of the Ba 2+ /Sr 2+ ratio on the phase composition, microstructure and properties of the BST thin films is investigated. Ba 0.6 Sr 0.4 TiO 3 , Ba 0.5 Sr 0.5 TiO 3 , and Ba 0.4 Sr 0.6 TiO 3 thin films have a cubic phase, while Ba 0.8 Sr 0.2 TiO 3 and Ba 0.7 Sr 0.3 TiO 3 thin films have a tetragonal phase. When the concentration of Ba 2+ in the electrolyte surpasses that of Sr 2+ , the width of micro-arc holes and the surface roughness of the film grow as the Ba 2+ concentration rises. Furthermore, the dielectric and ferroelectric properties of BST films are favorably connected with the surface morphology. When the Ba 2+ concentration is 0.06 M, the film has the best compactness and smoothness. In addition, the highest capacitance and lowest dielectric loss are achieved.
“…Dari berapa penelitian juga melaporkan suhu yang digunakan hingga 1300 o C [22][23][24][25] . Beberapa penelitian melaporakan bahwa metode ini menghasilkan banyak sekali algomerasi dengan ukuran butir pada rentang 2-5 µm dan impuritas yang tinggi yang menyebabkan buruknya sifat listrik dari material yang dihasilkan dari metode ini [26][27][28][29][30][31][32] .…”
Section: Metode Solid State Reactionunclassified
“…Material ini masuk dalam kategori polimer yang dibuat dari hasil polimerisasi dari vinylidene fluoride monomer (VDF). Polimer ini tersusun dari 59.4 wt% fluorine dan 3 wt% hidrogen [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] . Dari beberapa penelitian yang telah dilakukan material ini memiliki beberapa keunggulan pada sifat-sifatnya.…”
Barium titanate (BaTiO3) is ceramic material that is widely used in various applications..Electrostatic dielectric energy storage capacitor is one of the application of Barium titanate (BaTiO3) material. Composite materials based on barium titanate (BaTiO3) such as Polyvinylidene fluoride (PVDF)/BaTiO3 and BaTiO3/HAp Hydroxyapatite have been developed to improve the electrical properties of the materials. Many research have been reported hat barium titanate in nano phase has a maximum dielectric constant 5000 with particle size range of 30-50 nm. The addition of BaTiO3 composition as a filler to PVDF/BaTiO3 composite caused increasing of dielectric constant compared to the dielectric constant properties of the PVDF. Similar results also found on BaTiO3/HAp composite. From this review, it was also found that the composite of these three materials is a candidate for future material to improve the electrical properties of PVDF which have been applied to electrostatic dielectric energy storage capacitor applications.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
