OPTICAL AND STRUCTURAL PROPERTIES OF NANO-SIZED BARIUM STRONTIUM TITANATE (Ba0.6Sr0.4TiO3) THIN FILM

2008 ◽  
Vol 22 (09) ◽  
pp. 693-700 ◽  
Author(s):  
S. BOBBY SINGH ◽  
H. B. SHARMA ◽  
H. N. K. SARMA ◽  
SUMITRA PHANJOUBAM
Keyword(s):  
Thin Films ◽  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Sol Gel ◽  
Processing Technique ◽  
Cubic Phase ◽  
Bst Thin Films ◽  
Barium Strontium ◽  
Free Films ◽  
Quartz Substrates

Barium strontium titanate ( Ba 0.6 Sr 0.4 TiO 3) or BST thin films on quartz substrates have been prepared by using a modified sol-gel processing technique. The starting materials are barium 2-ethylhexanoate Ba[CH 3( CH 2)3 CH(C 2 H 5) CO 2]2, strontium 2-ethylhexanoate Sr[CH 3( CH 2)3 CH(C 2 H 5) CO 2]2 and titanium (IV) isopropoxide Ti[CH 3 CH 3 CHO ]4. The precursors Ti[CH 3 CH 3 CHO ]4 except were synthesized in the laboratory. Transparent and crack-free films were fabricated on quartz substrates by spin coating. The as-fired films were found to be amorphous, which crystallized to cubic phase after annealing at 550°C in air for 1 hr. In this paper, we report the structural and optical properties of BST thin films prepared by the modified sol-gel process.

Electrical and Structural Diagnostics of Barium Strontium Titanate (BST) Thin Films

2011 ◽  
Vol 1292 ◽  
Author(s):  
Supriya Ketkar ◽  
Manoj Kumar Ram ◽  
Ashok Kumar ◽  
Thomas Weller ◽  
Andrew Hoff
Keyword(s):  
Thin Films ◽  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Sol Gel ◽  
Electrical Characterization ◽  
Film Structure ◽  
Production Costs ◽  
Bst Thin Films ◽  
Barium Strontium ◽  
Metal Insulator Metal

ABSTRACTThe properties of radio frequency, rf magnetron sputtered Barium Strontium Titanate (Ba1-xSrxTiO3), BST, thin films were investigated and compared with BST thin films deposited by sol-gel method with the aim of determining relationships between the oxide deposition parameters, the film structure, and the electric field dependence. This work presents noncontact electrical characterization of BST films using Corona Kelvin metrology (C-KM) which has been employed earlier only in the silicon industry. The films were structurally characterized using thickness profilometer, X-ray diffraction (XRD) and atomic force microscopy (AFM) techniques. The use of sol-gel technique to fabricate small area metal-insulator-metal (MIM) structures is found to be beneficial from the point of saving fabrication time and production costs.

TUNABLE BAND-PASS FILTER USING INTERDIGITAL CAPACITOR BY BARIUM STRONTIUM TITANATE (BST) THIN FILMS

2006 ◽  
Vol 86 (1) ◽  
pp. 141-148 ◽  
Author(s):  
TAE-SOON YUN ◽  
HEE NAM ◽  
KI-CHUL YOON ◽  
JONG-CHUL LEE ◽  
HYUN-SUK KIM ◽  
...  
Keyword(s):  
Thin Films ◽  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Bst Thin Films ◽  
Interdigital Capacitor ◽  
Barium Strontium ◽  
Band Pass

Sol-gel-derived pyroelectric barium strontium titanate thin films for infrared detector applications

2000 ◽  
Vol 71 (6) ◽  
pp. 667-670 ◽  
Author(s):  
J.-G. Cheng ◽  
J. Tang ◽  
A.-J. Zhang ◽  
X.-J. Meng ◽  
J.-H. Chu
Keyword(s):  
Thin Films ◽  
Strontium Titanate ◽  
Barium Strontium Titanate ◽  
Infrared Detector ◽  
Sol Gel ◽  
Barium Strontium
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