eprintid: 4131
rev_number: 16
eprint_status: archive
userid: 438
dir: disk0/00/00/41/31
datestamp: 2020-12-08 09:32:58
lastmod: 2020-12-08 09:32:58
status_changed: 2020-12-08 09:32:58
type: article
metadata_visibility: show
creators_name: Nguyen, Dang Co
creators_name: Bui, Dinh Tu
creators_name: Le, Viet Cuong
creators_name: Pham, Duc Thang
creators_id: cond@vnu.edu.vn
creators_id: buidinhtu@vnu.edu.vn
creators_id: cuonglv@vnu.edu.vn
creators_id: pdthang@vnu.edu.vn
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
ispublished: pub
subjects: Phys
subjects: isi_scopus_conf
divisions: fac_physic
abstract: 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.
date: 2019-09
date_type: published
publisher: Elsevier B.V
official_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/4131/2/S2468217919300528
full_text_status: public
publication: Journal of Science: Advanced Materials and Devices
volume: 4
number: 3
pagerange: 370-375
refereed: TRUE
issn: 2468-2179
citation:   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     
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/4131/1/Nguyen%20Dang%20Co_Journal%20of%20Science%20Advanced%20Materials%20and%20Devices.pdf