Synthesis and characterization of micro/nanoscopic Pb(Zr0.52Ti0.48)O3 fibers by electrospinning

Wang, Y.; Furlan, Rogério; Ramos, Idalia; Santiago-Avilés, Jorge J.

doi:10.1007/s00339-003-2152-2

Cited by 74 publications

(47 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[18][19][20][21] Several examples of ferroelectric ceramic nanofibers have been fabricated using a sol-gel in the electrospinning process. [22][23][24] While the direct piezoelectric responses of ceramic fibers were demonstrated, 25,26 they are brittle. This problem was recently addressed by electrospinning of multi-material piezoelectric polymer fibers containing ferroelectric polymer PVDF.…”

mentioning

confidence: 97%

Highly piezoelectric biocompatible and soft composite fibers

Morvan

Büyüktanir

West

et al. 2012

Applied Physics Letters

View full text Add to dashboard Cite

We report the fabrication of highly piezoelectric biocompatible soft fibers containing barium titanate ferroelectric ceramic particles dispersed in electrospun poly lactic acid (PLA). These fibers form mats that have two orders of magnitude larger piezoelectric constant per weight than single crystal barium titanate films. We propose that the observed apparent piezoelectricity results from the electrospinning induced polar alignment of the ferroelectric particles that pole the fibers similar to ferroelectret polymer foams that are poled by corona discharge. Due to the biocompatibility of PLA that encases the ferroelectric particles, these mats can be used in biological applications such as bio-sensors, artificial muscles, and energy harvesting devices.Piezoelectricity (a linear coupling between electric and mechanical signals) was discovered in non centro-symmetric crystals by the Curie brothers in 1880. 1 Since then piezoelectricity has been observed in ceramics, 2 certain synthetic 3 and biological polymers, 4,5 and ferroelectric liquid crystals. 6,7 Today piezoelectric materials are used in ultrasonic and hydroacoustic devices, 8 for frequency standards, 9 and in electromechanical actuators and sensors. 10 Recently certain cellular polymers internally charged by corona discharge (ferroelectrets) have been found to behave like soft sensitive piezoelectrics. 11 In addition to the corona charges in the voids in these foams, they usually also have to be inflated further with high pressure gas. 12 As a result, these ferroelectrets have long-term stability issues. 13 Here, we demonstrate high converse piezoelectric response of fiber mats composed of ferroelectric barium titanate (BT) nanoparticles dispersed in polylactic acid (PLA) and show that the effective piezoelectric constant per weight is two orders of magnitude larger than that of single crystal BT and of pure piezoelectric ceramic fibers. We propose that this unexpected super-piezoelectricity is due to the electrospinning-induced polar alignment of the particles, and the large surface area of the fibers, similar to ferroelectrets, however without the need of corona discharge and inflation processes.Electrospun fibers are formed by drawing a solution through a high electric field gradient generated between a nozzle and a collection plate 14-17 by electric fields of about 1-2 kV/cm, which is smaller than the breakdown field of 3 kV/cm of dry air. This produces very thin fibers with diameters ranging from hundreds of nanometers to several microns. Previously fibers of ferroelectric polymers, such as polyvinylidene fluoride (PVDF), have been electrospun and studied for electro-mechanical energy conversion applications. [18][19][20][21] Several examples of ferroelectric ceramic nanofibers have been fabricated using a sol-gel in the electrospinning process. [22][23][24] While the direct piezoelectric responses of ceramic fibers were demonstrated, 25,26 they are brittle. This problem was recently addressed by electrospinning of multi-material piezoelectric polymer...

show abstract

mentioning

confidence: 97%

Highly piezoelectric biocompatible and soft composite fibers

Morvan

Büyüktanir

West

et al. 2012

Applied Physics Letters

View full text Add to dashboard Cite

show abstract

“…It is an easy and cost-effective process to obtain micro and nanofibers [1][2][3] . Huang et al [1] compare in detail this technique with others used to obtain polymeric fibers and, also give extensive information about the use of different types of polymers with electrospinning.…”

Section: Introductionmentioning

confidence: 99%

Characterization of an electrospinning process using different PAN/DMF concentrations

et al. 2007

View full text Add to dashboard Cite

Abstract:We performed an extensive characterization of an electrospinning process to evaluate how the process parameters and precursor solution characteristics affect the fibers morphology. The work was conducted using precursor solutions with different concentrations of polyacrylonitrile (PAN) diluted in a fixed amount of N,N dimethylformamide (DMF). Fibers obtained with this process can find important applications in the field of nanosensors. The characteristics of the electrospun fibers were analyzed as a function of the solution viscosity, applied voltage and distance between the needle tip (positive electrode) and the collector plate (grounded electrode). The electrical current was monitored during the deposition process and its behavior was correlated with the characteristics of the fibers obtained. Our results demonstrate that the diameter of the fibers increases with increasing viscosity and applied voltage. The number of deposited fibers also increases with the applied voltage. Also, viscosity and applied voltage strongly affect the shape, length and morphology of the fibers. Of particular interest, we demonstrated that by monitoring the electrical current it is possible to control the fibers morphology and bead concentration. The distance between tip and collector plate determines the way the fibers arrive on the collector plate. A main contribution of this study was the definition of conditions to controllably obtain fibers that are smooth and that present diameters in the range between 140 and 300 nm.

show abstract

“…Larsen et al 64 have demonstrated successfully the electrospinning of titania, silica, and alumina nanofibers using viscous inorganic sols. Others [65][66][67] have also demonstrated the synthesis of PZT and silica nanofibers using same approach. In order to improve the viscoelasticity required for electrospinning, a solution consisting of a polymer as a host for carrying ceramic precursor has been employed by Li and Xia.…”

Section: Electrospinning Of Metallic Nanowires (Mnws)mentioning

confidence: 92%

“…109 The phase contrast images obtained in amplitude modulation AFM can give comprehensive information about the different elements present in the medium at the nanoscale without affecting the compositional or morphological features of the medium. An example of such approach was given by Aviles et al 67 where they identified different domains within an electrospun PZT microfiber through phase contrast images using scanning probe microscope as shown in Fig. 10.…”

Section: A Compositional and Morphological Analysismentioning

confidence: 98%

Electrospun metallic nanowires: Synthesis, characterization, and applications

Khalil¹,

Lalia²,

Hashaikeh³

et al. 2013

Journal of Applied Physics

View full text Add to dashboard Cite

Metals are known to have unique thermal, mechanical, electrical, and catalytic properties. On the other hand, metallic nanowires are promising materials for variety of applications such as transparent conductive film for photovoltaic devices, electrodes for batteries, as well as nano-reinforcement for composite materials. Whereas varieties of methods have been explored to synthesize metal nanowires with different characteristics, electrospinning has also been found to be successful for that purpose. Even though electrospinning of polymeric nanofibers is a well-established field, there are several challenges that need to be overcome to use the electrospinning technique for the fabrication of metallic nanowires. These challenges are mainly related to the multi-steps fabrication process and its relation to the structure evolution of the nanowires. In addition to reviewing the literature, this article identifies promising avenues for further research in this area with particular emphasis on the applications that nonwoven metal wires confined in a nano-scale can open.

show abstract

Synthesis and characterization of micro/nanoscopic Pb(Zr0.52Ti0.48)O3 fibers by electrospinning

Cited by 74 publications

References 22 publications

Highly piezoelectric biocompatible and soft composite fibers

Highly piezoelectric biocompatible and soft composite fibers

Characterization of an electrospinning process using different PAN/DMF concentrations

Electrospun metallic nanowires: Synthesis, characterization, and applications

Contact Info

Product

Resources

About