Structural and electrical properties of samarium-substituted bismuth titanate ferroelectric thin films on Pt/TiOx/SiO2/Si substrates

2005 ◽  
Vol 484 (1-2) ◽  
pp. 188-195 ◽  
Author(s):  
Xiaobing Hu ◽  
Ashish Garg ◽  
Zoe H. Barber
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Bismuth Titanate ◽  
Ferroelectric Thin Films ◽  
Si Substrates ◽  
Structural And Electrical Properties

Structural and Ferroelectric Properties of SrBi2Ta2O9 Thin Films

1994 ◽  
Vol 361 ◽  
Author(s):  
Kazushi Amanuma ◽  
Takashi Hase ◽  
Yoicht Mtyasaka
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Structural Change ◽  
Electrical Properties ◽  
Ferroelectric Properties ◽  
Si Substrates ◽  
Average Grain Size ◽  
Structural And Electrical Properties ◽  
Sims Analysis ◽  
Film Preparation

ABSTRACTStructural and electrical properties were investigated for chemically prepared SrBi2Ta2O9(SBT) thin films on Pt/Ti/SiO2/Si substrates. Good ferroelectric properties were obtained with a Pt top electrode: Pr=10.0μC/cm2 and Ec-34kV/cm. Au top electrodes resulted in smaller Pr. However, no fatigue was observed up to 109 switching cycles regardless of the top electrode material. Grains were spherical, not columnar, and the average grain size was 200nm. A marked structural change took place in the bottom Pt/Ti electrode during film preparation. The SIMS analysis indicates the reaction between Bi and Pt

Ti-site Substitution Using the Higher-valent Cation for Enhancing the Ferroelectric Properties of Nd3+−substituted Bismuth Titanate Thin Films

2003 ◽  
Vol 784 ◽  
Author(s):  
Hiroshi Uchida ◽  
Seiichiro Koda ◽  
Hirofumi Matsuda ◽  
Takashi Iijima ◽  
Takayuki Watanabe ◽  
...  
Keyword(s):  
Thin Films ◽  
Coercive Field ◽  
Chemical Solution Deposition ◽  
Remanent Polarization ◽  
Bismuth Titanate ◽  
Ferroelectric Properties ◽  
Ferroelectric Thin Films ◽  
Chemical Solution ◽  
Solution Deposition ◽  
Si Substrates

ABSTRACTTi-site substitution using the higher-valent cation was performed on ferroelectric thin films of neodymium-substituted bismuth titanate, (Bi,Nd)4Ti3O12(BNT), in order to improve its ferroelectric properties by compensating the space charge in BIT-based crystal. Ti-site-substituted BNT films, (Bi3.50Nd0.50)1-(x/12)(Ti3.00-xVx)O15(x= 0 ∼ 0.09), were fabricated on (111)Pt/Ti/ SiO2/(100)Si substrates using a chemical solution deposition (CSD) technique. V5+-substitution enhanced the remanent polarization of BNT film without change in the coercive field. V5+-substitution also exhibited the possibilities for improving the endurance against leakage current and fatigue degradation.

Structural and Electrical Properties of Vanadium Tungsten Oxide Thin Films Grown on Pt/TiO2/SiO2/Si Substrates

2008 ◽  
Vol 569 ◽  
pp. 73-76
Author(s):  
Sung Pill Nam ◽  
Sung Gap Lee ◽  
Young Hie Lee
Keyword(s):  
Thin Films ◽  
Dielectric Properties ◽  
Electrical Properties ◽  
Dielectric Loss ◽  
Annealing Temperature ◽  
Rf Sputtering ◽  
Dielectric Constants ◽  
Si Substrates ◽  
Structural And Electrical Properties ◽  
Tungsten Oxide Thin Films

The V1.9W0.1O5 thin films deposited on Pt/Ti/SiO2/Si substrates by RF sputtering method exhibited fairly good TCR and dielectric properties. It was found that film crystallinity, dielectric properties, and TCR properties were strongly dependent upon the annealing temperature. The dielectric constants of the V1.9W0.1O5 thin films annealed at 300°C were 37.7, with a dielectric loss of 2.535, respectively. Also, the TCR values of the V1.9W0.1O5 thin films annealed at 300°C were about -3.7%/K.

Improved photoluminescence and electrical properties of Eu- and Gd-codoped bismuth titanate ferroelectric thin films

2008 ◽  
Vol 103 (8) ◽  
pp. 086104 ◽  
Author(s):  
Kaibin Ruan ◽  
Xinman Chen ◽  
Tong Liang ◽  
Guangheng Wu ◽  
Dinghua Bao
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Bismuth Titanate ◽  
Ferroelectric Thin Films
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