Improving energy storage properties of K0.5Bi0.5TiO3 with LiNbO3 as substituent

Eco-friendly, lead-free 0.965K0.5Bi0.5TiO3-0.035LiNbO3 (KLN35) was synthesized using conventional solid state reaction route. The formation of KLN35 with pseudocubic structure is confirmed using X-ray diffraction study. XPS results further confirms the formation of the sample. Addition of Nb5+ in th...

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Bibliographic Details
Published inMaterials today : proceedings
Main Authors Pappachan, Seethal, Rashid, A., Giridharan, N.V.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.03.2023
Subjects
Energy storage density
Polarization hysteresis curve
Relaxor
Energy storage density
Relaxor
Polarization hysteresis curve
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Summary:Eco-friendly, lead-free 0.965K0.5Bi0.5TiO3-0.035LiNbO3 (KLN35) was synthesized using conventional solid state reaction route. The formation of KLN35 with pseudocubic structure is confirmed using X-ray diffraction study. XPS results further confirms the formation of the sample. Addition of Nb5+ in the B-site induced ferroelectric disorder generating polar nano regions resulting in low remanent polarization and hence thin polarization hysteresis loop. The synthesized samples has a recoverable energy density of 1.2 J/cm3 and an efficiency of 55%, which affirms that K0.5Bi0.5TiO3 based systems can be refined for the use as electrostatic capacitors.
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2023.03.204