TY  - JOUR
ID  - SisLab3538
UR  - https://eprints.uet.vnu.edu.vn/eprints/id/eprint/3538/
A1  - Bui, Dinh Tu
A1  - Nguyen, Dang Co
A1  - Le, Viet Cuong
A1  - Pham, Duc Thang
Y1  - 2019/04/25/
N2  - Lead-free Bi0.5(Na0.80K0.20)0.5TiO3 (BNKT) ferroelectric films were synthesized on Pt/Ti/SiO2/Si substrates via the chemical solution deposition. The influence of the crystallization temperature on the microstructures, the ferroelectric and energy-storage properties of the films was investigated in detail. The results showed that the BNKT films have reached the well crystallized state in the single-phase perovskite structure at 700oC. Ferroelectric and energystorage properties of the films were significantly enhanced by increasing the crystallization
temperature. The remnant polarization (2Pr) and maximum polarization (2Pm) reached the highest values of 18.4 µC/cm2 and 61.2 µC/cm2, respectively, under the electric field of 300 kV/cm. Thanks to the strong enhancement in 2Pm and the large Pmax - Pr value, the highest energy-storage density (Jreco) and efficiency of 2.3 J/cm3 and 58.2%, respectively, were obtained. These results indicate that the BNKT films have application potentials in advanced
capacitors.
PB  - Elsevier B.V
JF  - Journal of Science: Advanced Materials and Devices
SN  - 2468-2179
TI  - Effect of Crystallization Temperature on Energy-Storage Density and Efficiency of Lead-Free Bi0.5(Na0.8K0.2)0.5TiO3 Thin Films Prepared by Sol-Gel Method
AV  - public
ER  -