Structural, dielectric and electrical characteristics of yttrium modified 0.7BiFeO3-0.3PbTiO3

NiO–Ti nanocomposites for contact electrification and energy harvesting: experimental and DFT+U studies

“…Hence a in dielectric permittivity was observed at higher frequency, which could be expressed by the Maxwell-Wagner theory. 37,38 The dielectric loss increased in the higher frequency region, attaining a maximum peak and then decreasing. The increase in the dielectric loss value in the lowfrequency regime was associated with the dominant resistive component.…”

Material strategies to enhance the performance of piezoelectric energy harvesters based on lead-free materials

“…The permittivity as well as the dielectric loss increase with the increase of the temperature. The BiFeO 3 -PbTiO 3 ceramic shows an increase of conductivity up to 350 • C and change of the permittivity and dielectric loss [201]. A temperature dependence of d 33 piezoelectric coefficient has been reported for the (1 − x)BiFeO 3 -xBaTiO 3 ceramics [202].…”

Nanocrystalline triple perovskite compounds A3Fe2BO9(A = Sr, Ba; B = W, Te) with ferromagnetic and dielectric properties for triboelectric energy harvesting

“…Complex impedance spectroscopy (CIS) is a powerful tool to identify the various contributions of the grain, grain boundary, and electrode towards the electrical properties of any material. 71 The electrical response of different individual components can be distinguished based on different relaxation times. The Nyquist plot (resistive part of impedance (Z 0 ) and the reactive component of impedance (Z 00 ) of synthesized materials at 25 1C are shown in Fig.…”