Flexible piezoelectric nanogenerators based on a fiber/ZnO nanowires/paper hybrid structure for energy harvesting

Liao, Qingliang; Zhang, Zheng; Zhang, Xiaohui; Mohr, Markus; Fecht, Hans‐Jörg

doi:10.1007/s12274-014-0453-8

Cited by 153 publications

(87 citation statements)

References 31 publications

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“…The rise-time of the electromotive force is related to the shock front propagation time through the ferroelectric sample thickness (Shkuratov et al 2010). Values of functional parameters (generated voltage, current, and power) of cellulose/SbSI nanogenerators presented in this article are hard to compare to data reported for piezoelectric papers (Kumar et al 2011;Liao et al 2014;Zhang et al 2016). Different researchers applied various excitation methods (i.e., bending, pressing, and ultrasonic waves).…”

Section: Resultsmentioning

confidence: 88%

Novel piezoelectric paper based on SbSI nanowires

et al. 2017

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A novel piezoelectric paper based on antimony sulfoiodide (SbSI) nanowires is reported. The composite of tough sonochemically produced SbSI nanowires (with lateral dimensions 10-100 nm and length up to several micrometers) with very flexible cellulose leads to applicable, elastic material suitable to use in fabrication of, for example, piezoelectric nanogenerators. For mechanical energy harvesting, cellulose/SbSI nanocomposite may be used. Due to its high values of electromechanical coefficient (k 33 = 0.9) and piezoelectric coefficient (d 33 = 1 9 10 -9 C/N), SbSI is a very attractive material for such devices. The preliminary investigations of a simple cellulose/SbSI nanogenerator for shock pressure (p = 3 MPa) and sound excitation (f = 175 Hz, L p = 90 dB) allowed to determine its open circuit voltage 2.5 V and 24 mV, respectively. For a load resistance equal to source impedance (Z S = 2.90(11) MX), maximum output power density (P L = 41.5 nW/cm 3 for 0.05-mm-thick sheet of this composite) of the cellulose/SbSI nanogenerator was observed. Cellulose/SbSI piezoelectric paper may also be useful to construct gas nanosensors and actuators.

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Section: Resultsmentioning

confidence: 88%

Novel piezoelectric paper based on SbSI nanowires

et al. 2017

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“…[14][15][16][17] These devices can generate signals under certain environment physical or chemical signals changes, and then operate in a manner. [18][19][20][21][22] In general, they consist of numerous circuits or intricate layered matrix arrays, and are manufactured by complicated producing processes, which lead to an intensive energy consumption and limit their wide applications.…”

Section: Introductionmentioning

confidence: 99%

Flexible and Highly Sensitive Strain Sensors Fabricated by Pencil Drawn for Wearable Monitor

Liao

Yan

et al. 2015

Adv Funct Materials

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461

361

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1wileyonlinelibrary.com schemes, the fl exible functional sensors are competitive and attractive candidates for promoting the advancement of sensing system. Recently, for the achievement of sensing devices, the printing technique has attracted widespread attention and been pursued to deposit various materials, like carbon materials, [ 13,23,24 ] polymers, [ 25,26 ] metals, [ 12,27 ] and semiconductors, [ 28,29 ] because the process is low energy consumption while maintaining the unique properties of the materials. By this way, the fl exible devices can be cheaper and easily produced.Graphite, one of carbon allotropes, has been increasing wide and keen interests of researchers, due to a wonder material of graphene. [ 9,[30][31][32] Pencil, a day-to-day material, is a nanocomposite of graphite and intercalated clay. [33][34][35] Being layered or pelleted, pencil lead can be exfoliated by using a gentle force. The drawing process can easily deposit graphite onto a rough paper, which contains massive amounts of cellulose fi bers and offer a naturally porous structure. [ 13,36 ] Pencil-trace drawn on printing papers is perhaps the simplest and easiest way of constructing graphite-based devices. The pen-on-paper (PoP) approach, a basic printing technique, offers a unique method to fabricate fl exible devices, such as strain sensors, [ 35 ] biosensors, [ 19,37 ] microfl uidic chips, [ 38 ] electronic devices, [ 34,39 ] photoconductive sensors, [ 29,40 ] and energy-storage devices. [ 33,41,42 ] Most of these devices have a response to force-induce changes in capacitance [ 33 ] and resistivity. [ 35 ] The microcontact-reversible sensing can effectively translate the microstructural deformations into electrical signals on active fl exible substrates. [ 6,9,43,44 ] As the potential to make fl exible, lightweight, portable, biocompatible, economical, and environment-friendly products, the PoP approach has an important role on the breakthroughs toward fl exible and wearable sensing devices.Herein, we demonstrate that the application of PoP approach can be expanded further to crucial fl exible sensing devices. We evaluated the repeatability of bending-unbending and the robustness of the strain sensors applied by loading. The strain sensors have a rapid respond to microdeformation changes and can be used to monitor various structural change and even human motion through facilitative and effective installing designs. Typically, the microdeformation of <0.13% strain can be detected. Compared with the recently reported fl exible sensing devices, the strain sensors behave signifi cant Flexible and Highly Sensitive Strain Sensors Fabricated by Pencil Drawn for Wearable MonitorXinqin Liao , Qingliang Liao , Xiaoqin Yan , Qijie Liang , Haonan Si , Minghua Li , Hualin Wu , Shiyao Cao , and Yue Zhang * Functional electrical devices have promising potentials in structural health monitoring system, human-friendly wearable interactive system, smart robotics, and even future multifunctional intelligent room. Here, a low-cost fabrication s...

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“…The light absorption performance is higher than other structures, because of the light scattering effect. Therefore, ZnO NAs have been widely used in optoelectronic, electrochemical, and electronic devices, such as nanogenerators [31][32][33][34], sensors [35][36][37][38], light-emitting diodes [39,40], ultraviolet (UV) detectors [41][42][43][44][45], solar cells [46][47][48][49], field emission devices [50,51], and biosensors [52][53][54][55].…”

Section: Introductionmentioning

confidence: 99%

Design and tailoring of patterned ZnO nanostructures for energy conversion applications

Kang

Liao

et al. 2017

Sci. China Mater.

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ZnO is a typical direct wide-bandgap semiconductor material, which has various morphologies and unique physical and chemical properties, and is widely used in the fields of energy, information technology, biomedicine, and others. The precise design and controllable fabrication of nanostructures have gradually become important avenues to further enhancing the performance of ZnO-based functional nanodevices. This paper introduces the continuous development of patterning technologies, provides a comprehensive review of the optical lithography and laser interference lithography techniques for the controllable fabrication of ZnO nanostructures, and elaborates on the potential applications of such patterned ZnO nanostructures in solar energy, water splitting, light emission devices, and nanogenerators. Patterned ZnO nanostructures with highly controllable morphology and structure possess discrete three-dimensional space structure, enlarged surface area, and improved light capture ability, which realize the efficient carrier regulation, achieve highly efficient energy conversion, and meet the diverse requirements of functional nanodevices. The patterning techniques proposed for the precise design of ZnO nanostructures not only have important guiding significance for the controllable fabrication of complex nanostructures of other materials, but also open up a new route for the further development of functional nanostructures.

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Flexible piezoelectric nanogenerators based on a fiber/ZnO nanowires/paper hybrid structure for energy harvesting

Cited by 153 publications

References 31 publications

Novel piezoelectric paper based on SbSI nanowires

Novel piezoelectric paper based on SbSI nanowires

Flexible and Highly Sensitive Strain Sensors Fabricated by Pencil Drawn for Wearable Monitor

Design and tailoring of patterned ZnO nanostructures for energy conversion applications

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