relation: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/4131/
title: 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
creator: Nguyen, Dang Co
creator: Bui, Dinh Tu
creator: Le, Viet Cuong
creator: Pham, Duc Thang
subject: Engineering Physics
subject: ISI/Scopus indexed conference
description: 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 700 °C. Ferroelectric and energy-storage 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 an applied 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.
publisher: Elsevier B.V
date: 2019-09
type: Article
type: PeerReviewed
format: application/pdf
language: en
identifier: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/4131/1/Nguyen%20Dang%20Co_Journal%20of%20Science%20Advanced%20Materials%20and%20Devices.pdf
identifier:   Nguyen, Dang Co and Bui, Dinh Tu and Le, Viet Cuong and Pham, Duc Thang  (2019) 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.  Journal of Science: Advanced Materials and Devices, 4  (3).   pp. 370-375.  ISSN 2468-2179     
relation: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/4131/2/S2468217919300528