Synthesis, characterization and ferroelectric properties of lead-free K0.5Na0.5NbO3 nanotube arrays

Zhou, Di; Gu, Haoshuang; Hu, Yongming; Tian, Huyong; Wang, Zhao; Qian, Zheli; Wang, Yu

doi:10.1063/1.3592636

Cited by 18 publications

(2 citation statements)

References 36 publications

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“…AAO template-assisted synthesis is a cost-effective method, compared with lithography and FIB [69,70]. ZnO nanopillars array [71], Sb 2 S 3 NWs array [72], lead zirconate titanate tubes array [73,74], K 0.5 Na 0.5 NbO 3 (KNN) nanotubes (NTs) array [75] and BiScO 3 -PbTiO 3 NTs array [76] have been synthesized to fabricate piezoelectric nanogenerators.…”

Section: Mechanical Energy Conversionmentioning

confidence: 99%

Ordered nanostructures arrays fabricated by anodic aluminum oxide (AAO) template-directed methods for energy conversion

Zhang¹,

Zhou²,

Zhao³

et al. 2021

Nanotechnology

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Clean and efficient energy conversion systems can overcome the depletion of the fossil fuel and meet the increasing demand of the energy. Ordered nanostructures arrays convert energy more efficiently than their disordered counterparts, by virtue of their structural merits. Among various fabrication methods of these ordered nanostructures arrays, anodic aluminum oxide (AAO) template-directed fabrication have drawn increasing attention due to its low cost, high throughput, flexibility and high structural controllability. This article reviews the application of ordered nanostructures arrays fabricated by AAO template-directed methods in mechanical energy, solar energy, electrical energy and chemical energy conversions in four sections. In each section, the corresponding advantages of these ordered nanostructures arrays in the energy conversion system are analysed, and the limitation of the to-date research is evaluated. Finally, the future directions of the ordered nanostructures arrays fabricated by AAO template-directed methods (the promising method to explore new growth mechanisms of AAO, green fabrication based on reusable AAO templates, new potential energy conversion application) are discussed.

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Section: Mechanical Energy Conversionmentioning

confidence: 99%

Ordered nanostructures arrays fabricated by anodic aluminum oxide (AAO) template-directed methods for energy conversion

Zhang¹,

Zhou²,

Zhao³

et al. 2021

Nanotechnology

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“…Zhong et al 26 prepared a BiScO 3 −PbTiO 3 nanotube array using the sol−gel template and the nanotube arrays with aggregation states were obtained by etching with The relationship between the tube wall thickness and piezoelectric property was specially studied. Zhou et al 27 also prepared a K 0.5 Na 0.5 NbO 3 nanotube array using the sol−gel template with the sol-filling process of negative pressure deposition and obtained a nanotube array with aggregation states by etching with 4 mol/L NaOH solution. Kim et al 28 prepared ultrathin-walled Pb(Zr,Ti)O 3 nanotube arrays by template sol filling with spin coating and investigated the relationship between the aspect ratio of nanotubes and the etching time of the NaOH solution.…”

mentioning

confidence: 99%

Ferroelectricity and Piezoelectricity of Na_0.5Bi_0.5TiO₃ Nanotube Arrays: Implications for Functional Electronic Devices

Zhu

2021

ACS Appl. Nano Mater.

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Piezoelectric and ferroelectric properties of lead-free sodium bismuth titanate Na 0.5 Bi 0.5 TiO 3 (NBT) nanotube arrays were studied using piezoresponse force microscopy. The nanotube arrays prepared by sol filling in the porous anodic aluminum oxide template with an exposure height of 30−55 nm and vertical arrangement demonstrated enhanced piezoelectric properties compared with the other nanotube structures and a large piezoelectric coefficient with regular domain states. We further prepared a metal/NBT nanotube arrays/metal capacitor for the study of ferroelectric and piezoelectric properties. The piezoelectric properties of NBT nanotube arrays were found to be much improved in a capacitor and finite element modeling attributes such improvement to the uniform electric potential distribution from the tip of the nanotube in the capacitor. The improved piezoelectric properties could make NBT nanotube arrays as a promising candidate for piezoelectric nanostructure devices.

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Electrospun (K,Na)NbO₃ Piezoceramic Fibers for Self‐Powered Tactile Sensing Application

Ichangi,

Derichsweiler,

Mathur

et al. 2023

Adv Eng Mater

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This study investigates the electrical properties of electrospun ceramic fiber mats based on potassium sodium niobate ((K,Na)NbO3;KNN) for potential applications in soft‐robotic tactile sensors. The rheological studies of electrospinning solutions exhibit shear thinning behavior, with a viscosity plateau between shear rates of 1–100 s−1. The thermal decomposition behavior of the KNN samples is analyzed using thermogravimetric analysis; the samples show multistep decomposition processes leading into a phase pure perovskite structure. For the electrospun KNN fiber mats, the electrical characterization reveals ferroelectric hysteresis loops with a high leakage current of ≈270 nA at 20 kV cm−1 and switching current behavior. The ferroelectric results indicate that a full polarization of KNN‐fiber mats is not possible due to their electrical breakdown at high electrical fields. The integration of KNN short fibers into a soft‐bending actuator demonstrates successful tactile sensing capabilities. The experimental findings reported here highlight the potential of electrospun KNN fiber mats for flexible and autonomous device applications in soft robotics.

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Synthesis, characterization and ferroelectric properties of lead-free K0.5Na0.5NbO3 nanotube arrays

Cited by 18 publications

References 36 publications

Ordered nanostructures arrays fabricated by anodic aluminum oxide (AAO) template-directed methods for energy conversion

Ordered nanostructures arrays fabricated by anodic aluminum oxide (AAO) template-directed methods for energy conversion

Ferroelectricity and Piezoelectricity of Na_0.5Bi_0.5TiO₃ Nanotube Arrays: Implications for Functional Electronic Devices

Electrospun (K,Na)NbO₃ Piezoceramic Fibers for Self‐Powered Tactile Sensing Application

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Synthesis, characterization and ferroelectric properties of lead-free K0.5Na0.5NbO3 nanotube arrays

Cited by 18 publications

References 36 publications

Ordered nanostructures arrays fabricated by anodic aluminum oxide (AAO) template-directed methods for energy conversion

Ordered nanostructures arrays fabricated by anodic aluminum oxide (AAO) template-directed methods for energy conversion

Ferroelectricity and Piezoelectricity of Na0.5Bi0.5TiO3 Nanotube Arrays: Implications for Functional Electronic Devices

Electrospun (K,Na)NbO3 Piezoceramic Fibers for Self‐Powered Tactile Sensing Application

Contact Info

Product

Resources

About

Ferroelectricity and Piezoelectricity of Na_0.5Bi_0.5TiO₃ Nanotube Arrays: Implications for Functional Electronic Devices

Electrospun (K,Na)NbO₃ Piezoceramic Fibers for Self‐Powered Tactile Sensing Application