Linear-like lead-free relaxor antiferroelectric (Bi0.5Na0.5)TiO3-NaNbO3 with giant energy-storage density/efficiency and super stability against temperature and frequency

• Published in: Journal of materials chemistry. A, Materials for energy and sustainability Vol. 7; no. 8; pp. 3971 - 3978
• Main Authors: Qi, He, Zuo, Ruzhong
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 19.02.2019
• Subjects: ambient temperature; Antiferroelectricity; Ceramics; Data processing; Density; Efficiency; electric field; Electric fields; Electric power systems; energy; Energy storage; Ferroelectric materials; Frequency ranges; High temperature; hysteresis; Hysteresis loops; Lead free; Permittivity; phase transition; Phase transitions; Polarization; Power efficiency; Raman spectra; Raman spectroscopy; Relaxors; Solid solutions; Temperature dependence; Temperature effects; Temperature measurement; Transmission electron microscopy; X-ray diffraction

A novel lead-free polar dielectric ceramic with linear-like polarization responses was found in (1 − x )(Bi 0.5 Na 0.5 )TiO 3 - x NaNbO 3 ((1 − x )BNT- x NN) solid solutions, exhibiting giant energy storage density/efficiency and super stability against temperature and frequency. High-resolution tra...