Fabrication of lead-free piezoelectric (Bi0.5Na0.5)TiO3–BaTiO3 ceramics using electrophoretic deposition

Kim, Minsu; Ito, Ryo; Kim, Sang–Wook; Khanal, Gopal Prasad; Fujii, Ichiro; Suzuki, Tohru; Uchikoshi, Tetsuo; Moriyoshi, Chikako; Kuroiwa, Yoshihiro; Wada, Satoshi

doi:10.1007/s10853-017-1717-y

Cited by 15 publications

(6 citation statements)

References 19 publications

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“…Current research mainly considers three aspects for improving the piezoelectric performance of lead-free piezoelectric ceramics. On one hand, the piezoelectric performance is improved through different preparation methods and preparation processes, while on the other hand, the piezoelectric properties of the material are improved through the doping modification of the material composition [50,54]. In addition, the output characteristics can be improved by designing a new structure [55].…”

Section: Piezoelectric Effect and Piezoelectric Materials Of Pementioning

confidence: 99%

Combination of Piezoelectric and Triboelectric Devices for Robotic Self-Powered Sensors

2021

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Sensors are an important part of the organization required for robots to perceive the external environment. Self-powered sensors can be used to implement energy-saving strategies in robots and reduce their power consumption, owing to their low-power consumption characteristics. The triboelectric nanogenerator (TENG) and piezoelectric transducer (PE) are important implementations of self-powered sensors. Hybrid sensors combine the advantages of the PE and TENG to achieve higher sensitivity, wider measurement range, and better output characteristics. This paper summarizes the principles and research status of pressure sensors, displacement sensors, and three-dimensional (3D) acceleration sensors based on the self-powered TENG, PE, and hybrid sensors. Additionally, the basic working principles of the PE and TENG are introduced, and the challenges and problems in the development of PE, TENG, and hybrid sensors in the robotics field are discussed with regard to the principles of the self-powered pressure sensors, displacement sensors, and 3D acceleration sensors applied to robots.

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Section: Piezoelectric Effect and Piezoelectric Materials Of Pementioning

confidence: 99%

Combination of Piezoelectric and Triboelectric Devices for Robotic Self-Powered Sensors

2021

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“…First, the covalency and ionicity of alkaline metals lithium (Li), Na, and K (designated as MA) were investigated based on For piezoelectric perovskites, alkaline and alkaline-earth metals are traditionally regarded as representative ionic species occupying the site of Pb or A [17]. Although there are more modern systems such as BNT [10][11][12][13] and BNT-based solid solutions [18], we focused on traditional systems, namely, BiFeO 3 [19] and GaFeO 3 [20], since our work was on the efficient use of ubiquitous alkaline and alkaline-earth metals. Both species of traditional systems are ionic; their formal ionic charges are 1+ and 2+, respectively.…”

Section: Calculationmentioning

confidence: 99%

“…One of the authors, N. Takesue [9], confirmed with molecular orbital calculation that (Bi 1/2 Na 1/2 )TiO 3 (BNT) [10,11] could be such a substitute. This substance is now widely recognized as a potential substitute and has been studied through many types of fabrication [11][12][13], long before N. Takesue's confirmation [9]. In addition to BNT, many excellent Pb-free piezoelectrics have been discovered [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

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Molecular Orbital Calculation of Lead-Free Perovskite Compounds for Efficient Use of Alkaline and Alkaline Earth Metals

Takesue¹,

Saito

2020

Crystals

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The effective ionic charges of lead-free perovskite dielectric complex compounds were investigated with molecular orbital calculation. The base model was a double perovskite cluster that consisted of octahedral oxygen cages with a transition metal ion of titanium, niobium, or zirconium located at each of their centers, and alkali and/or alkaline earth metal ions located at the body center, corners, edge centers, or face centers of the cluster. The results showed significant covalent bonds between the transition metals and the oxygens, and the alkali metals, especially sodium and oxygen. On the other hand, the alkaline earth metals have weak covalency. Calculation was also performed with the replacement of some of the oxygens with chlorine or fluorine; such replacement enhances the covalency of the transition metals. These trends provide good guidelines for the design properties of lead-free perovskite piezoelectrics based on ubiquitous sodium use.

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“…The conversion of mechanical energy (from waste vibrations) into electrical energy can be done by electromagnetic [36][37][38][39], piezoelectric [33,40], or electrostatic [41][42][43] mechanisms of transduction. The piezoelectric transduction mechanism is the most efficient mechanism for microelectronics [44], wireless sensors [45], and nanoelectronics [46] because they are easy to fabricate [47,48] and are able to harvest energy at variable frequencies [49][50][51]. This phenomenon was discovered by Pierre and Jacques Curie in 1880 [52] as having a direct effect (i.e., conversion of mechanical energy to electrical energy [53]), as expressed in Equation (1) [54] and a converse effect (i.e., the conversion of electrical energy to mechanical energy [55]), as expressed in Equation (2) [56].…”

Section: Introductionmentioning

confidence: 99%

A Review on Mechanisms for Piezoelectric-Based Energy Harvesters

2018

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From last few decades, piezoelectric materials have played a vital role as a mechanism of energy harvesting, as they have the tendency to absorb energy from the environment and transform it to electrical energy that can be used to drive electronic devices directly or indirectly. The power of electronic circuits has been cut down to nano or micro watts, which leads towards the development of self-designed piezoelectric transducers that can overcome power generation problems and can be self-powered. Moreover, piezoelectric energy harvesters (PEHs) can reduce the need for batteries, resulting in optimization of the weight of structures. These mechanisms are of great interest for many researchers, as piezoelectric transducers are capable of generating electric voltage in response to thermal, electrical, mechanical and electromagnetic input. In this review paper, Fluid Structure Interaction-based, human-based, and vibration-based energy harvesting mechanisms were studied. Moreover, qualitative and quantitative analysis of existing PEH mechanisms has been carried out.

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Fabrication of lead-free piezoelectric (Bi0.5Na0.5)TiO3–BaTiO3 ceramics using electrophoretic deposition

Cited by 15 publications

References 19 publications

Combination of Piezoelectric and Triboelectric Devices for Robotic Self-Powered Sensors

Combination of Piezoelectric and Triboelectric Devices for Robotic Self-Powered Sensors

Molecular Orbital Calculation of Lead-Free Perovskite Compounds for Efficient Use of Alkaline and Alkaline Earth Metals

A Review on Mechanisms for Piezoelectric-Based Energy Harvesters

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