Title Page
Contents
Abstract 6
국문요약 7
1. Introduction 11
1.1. Background 11
2. Experiments 14
2.1. Sol-gel Processing 14
2.2. Mechanical exfoliate of Fluorphlogopite mica 16
2.3. Fabrication 18
2.4. Measurement 20
3. Results and discussion 21
3.1. Characterization 21
3.2. Electrical properties of BST thick films 25
3.3. Mechanical stability of BST thick films 31
4. Conclusion 33
References 35
[Figure. 1] (a) depicts the synthesis flowchart for the BST solution, and (b) displays the findings of the thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC)... 15
[Figure. 2] Top view atomic force microscopy images of split MICA 17
[Figure. 3] Schematic of the process used to produce flexible BST thick film on F-Mica substrate with PT coating. 19
[Figure. 4] (a) Digital photo of a curved BST thick film, (b) X-ray diffraction pattern of the film, (c) Lateral watch scanning electron microscopy image, (d) Atomic force microscopy... 23
[Figure. 5] shows the EDS spectra of BST deposited on a Pt-coated mica substrate using the spin coating process. The spectra indicate the presence of barium (Ba), strontium (Sr), and titanium (Ti). 24
[Figure. 6] (a) Shows the characteristics of the electric field polarization (E-P), while (b) shows the dielectric constant and the loss tangent (tan δ). In the inset of (b) we provide a schematic... 27
[Figure. 7] (a) Shows the electric field versus leakage current density (E-J) curves for BST thick films in the unflexed, flexed, and flexed/concave conditions. (b) shows the ln(J) as a... 30
[Figure. 8] (a) Shows field dependent capacitance and loss tangent (tan δ) for elastic BST thick films in unbent and bent states. In (b), we show the tunability of dielectric the elastic BST thick... 32