Adding an electroactive response to 3D printed materials: Printing a piezoelectret

Kierzewski, Iain; Bedair, Sarah S.; Hanrahan, Brendan; Tsang, Harvey; Hu, Liangbing; Lazarus, Nathan

doi:10.1016/j.addma.2019.100963

Cited by 21 publications

(17 citation statements)

References 29 publications

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“…The formation of the piezoelectric β-crystal structure of PVDF can be enhanced by printing with a high voltage applied between the nozzle and the bed, as shown in [97], [98]. It should be noted that an effect similar to that of a piezoelectric material can be achieved using an electret, which can be 3D printed as well [99].…”

Section: B Sensing Materialsmentioning

confidence: 99%

A Review of Extrusion-Based 3D Printing for the Fabrication of Electro- and Biomechanical Sensors

et al. 2021

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In this review paper, we focus on the 3D printing technologies that consist of the extruding of fluid material in lines to form structures for electro-and biomechanical applications. Our paper reviews various 3D print technologies, materials, sensing technologies and applications of extrusion-based 3D printing. We also discuss how to overcome some of the challenges with 3D printed sensors, such as the anisotropy of the conductors as well as the drift and nonlinearity of the materials.

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Section: B Sensing Materialsmentioning

confidence: 99%

A Review of Extrusion-Based 3D Printing for the Fabrication of Electro- and Biomechanical Sensors

et al. 2021

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“…Moreover, the technology can also be applied to make the electrets. [114] Figure 7. a) Schematic of binder jetting technology. b) Low-magnification image of BT specimen sintered at 1400 °C.…”

Section: (10 Of 29)mentioning

confidence: 99%

Additive Manufacturing of Piezoelectric Materials

Cheng

Wang

et al. 2020

Adv Funct Materials

222

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The development of energy harvesting devices can not only effectively extend the service life of electronic equipment, but also bring convenience to equipment with power supplies that cannot be changed easily. Although the existing green energy sources can provide power to electronic devices efficiently, it is difficult to apply them to micro and small electronic devices with power on the order of mW or µW because of their demanding use conditions and large power generation. For these reasons, the energy generated by mechanical vibration and human movement has become a popular energy choice for microelectronic devices. [7-10] At present, there are several ways to convert the mechanical energy generated by vibration or moving objects into the electrical energy required by electronic equipment, including electromagnetic, [11,12] electrostatic, [13,14] and piezoelectric effect. [15,16] Compared with electromagnetic and electrostatic techniques, piezoelectric materials stand out because of their high energy conversion efficiency and strong piezoelectric sensitivity. [17,18] They can directly convert the applied mechanical stress into available electrical energy and are easy to integrate into the system, thus attracting extensive attention. These materials have been applied in many fields such as piezoelectric sensors, [19,20] actuators, [21,22] ultrasonic transducers, [23,24] and energy harvesters. [25,26] From this, we can see that piezoelectric materials show great development potential for emerging functional materials and have become the focus of future research regarding renewable clean energy and advanced energy storage materials. [27] The traditional piezoelectric device is fabricated by subtractive manufacturing. This process is not only complicated, long production cycle, low utilization rate of materials, high manufacturing cost, but it also mainly employs cutting technology such as scribing, broaching, sawing, or etching for piezoelectric devices with complex geometric shapes, which greatly limits operating conditions, density and work surroundings of piezoelectric devices. In addition, the mechanical stress generated by the traditional process will cause grain loss, strength degradation,

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“…So far, numerous works have been documented to shed light on the material preparation, the charge retention capacity, and the expending application scale of those available polymer counterparts 20–22 . For example, experiments reveal that the inflation would tune the electromechanical property of cellular piezo‐electret films, particularly in the thickness direction 23 .…”

Section: Introductionmentioning

confidence: 99%

Polymer electrets and their applications

Wang

et al. 2020

J of Applied Polymer Sci

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Polymer electrets have revealed great potential application in electromechanical devices because of the low weight, large quasi‐piezoelectric sensitivity, and excellent flexibility. For an electret, a permanent and macroscopic electric field exists on the surface, principally led by a macroscopic electrostatic charge on the surface or a net orientation of polar groups inside the object. Here, progress in the development of polymer electrets is reviewed. After a brief retrospect of the research courses and those typical polymer electrets that are classified into fluorine polymer and nonfluorine polymer, we present a survey on the charging methods, including corona, soft X‐ray, contact, thermal and monoenergetic particle beams. The latest representative applications (i.e., power harvesting, sensors, field effect transistors, and biomedicine) based on polymer electrets are also summarized. Finally, we complete this review with a discussion on perspectives and challenges in this field.

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Adding an electroactive response to 3D printed materials: Printing a piezoelectret

Cited by 21 publications

References 29 publications

A Review of Extrusion-Based 3D Printing for the Fabrication of Electro- and Biomechanical Sensors

A Review of Extrusion-Based 3D Printing for the Fabrication of Electro- and Biomechanical Sensors

Additive Manufacturing of Piezoelectric Materials

Polymer electrets and their applications

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