Review on energy storage in lead‐free ferroelectric films

Abstract

Rapidly developing electronics industry is striving for higher energy-storage capability dielectric capacitors for pulsed power electronic devices. Both high dielectric permittivity and high dielectric breakdown strength are essential properties to meet the desired device performance. However, due to materials limitations and their preparation requirements, there are significant challenges which limit the use of current dielectrics in high-energy storage capacitors. In addition material limitations such as, low dielectric permittivity, low breakdown strength, and high hysteresis loss decrease these materials' energy density and efficiency, restricting potential applications. Thus, a thorough understanding of the implementation, optimization and limitations of ferroelectric, relaxor-ferroelectric, and anti-ferroelectric thin films in high-energy storage dielectric capacitors is an essential and important research topic for the incorporation of these materials in near future applications.

Inorganic ferroelectric thin films and their composites for flexible electronic and energy device applications: current progress and perspectives

“…Ferroelectric materials (FEs) and their advancement are becoming a vast area of research interest. [9][10][11][12][13] Sensors are crucial in IoT since electrical impulses can be recognised and processed right away. Due to their asymmetric crystal structure, ferroelectric materials are the best choice for creating sensors since they are extremely sensitive to external stimuli, including mechanical energy, thermal energy, electrical energy, and light energy.…”

“…To the best of our knowledge, there are no reviews focusing on an investigation of IFE-based flexible devices for energy harvesting, IR sensing, and energy storage applications. [4][5][6][7][8][9][11][12][13][19][20][21][22][23][24][25][26][27][28] We are certain that the concepts presented here can encompass the outlook for IFE-based flexible devices and that is the sole aim of this review article.…”

“…2 In fact, recently, dielectric materials have been receiving a great deal of attention in the areas of energy harvesting, sensing, and energy storage applications. [3][4][5][6][7][8][9][10][11][12][13] Fig. 1 shows the domains where dielectric materials make their mark.…”

“…But there are several intrinsic parameters that determine the performance of a dielectric material as an energy harvester, an infra-red (IR) sensor, or an energy storage capacitor. [3][4][5][6][7][8][9][10][11][12][13] For example, energy harvesting applications require dielectric materials that can convert energy from mechanical vibrations and heat fluctuations into electrical energy. [1][2][3][4] On the other hand, IR sensing applications demand dielectric materials with a large spontaneous polarization change w.r.t.…”

“…14 While energy storage demands dielectric materials that can store electrical energy in terms of electrostatic displacement. [11][12][13] Therefore, a dielectric material that can perform the functions of energy harvester, infrared sensing, and energy storage will be a very good option for future energy technology.…”