Electrical, structural, and chemical properties of semiconducting metal oxide nanofiber yarns

Lotus, A. F.; Bender, Edward T.; Evans, E. A.; Ramsier, R. D.; Reneker, Darrell H.; Chase, George G.

doi:10.1063/1.2831362

Cited by 46 publications

(27 citation statements)

References 15 publications

(14 reference statements)

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“…In this approach, colloidal dispersions of nanosized charged particles are set into an oriented motion by the application of an external electric field. [133][134][135] The use of electrospinning was demonstrated for the production of Co, [136] Mn, [137] Fe, [138] In, [139] Ti, [140] Zr, [141] Ni, [142] and Zn [143] oxide NWs. [43] Polycrystalline oxides are typically obtained by electrophoretic deposition, [93][94][95] although the possibility of growing single-crystal nanostructures with processes assisted by mild annealing was also demonstrated.…”

Section: Synthesis Of Metal Oxide Nanowires and Nanorodsmentioning

confidence: 99%

Recent Developments and Perspectives for Memristive Devices Based on Metal Oxide Nanowires

Milano

Porro

Valov

et al. 2019

Adv Elect Materials

107

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Memristive devices are considered one of the most promising candidates to overcome technological limitations for realizing next‐generation memories, logic applications, and neuromorphic systems in the modern nanoelectronics and information technology. Despite the continuous efforts, understanding the resistive switching mechanism underlying memristive/neuromorphic behavior still represents a challenge. Metal oxide nanowire‐based memristors appear suitable model systems for a deeper understanding of the involved physical/chemical phenomena due the possibility for localizing and investigating the switching mechanism. In practical aspects, nanowire‐based devices can be grown using a bottom‐up approach, thus being considered reliable candidates for going beyond the current scaling limitations of the top‐down approach by the standard lithography. In addition, taking into advantage of the high surface‐to‐volume ratio of these nanostructures, new device functionalities can be achieved by exploiting surface effects. In the literature, a variety of nanowire‐based devices such as single nanowires, nanowire arrays, and networks are reported to exhibit memristive behavior, explained by different switching mechanisms. This work provides a comparative review and a comprehensive analysis of device performances and physical phenomena responsible for memristive and neuromorphic behavior in such nanostructures. The analysis of the state‐of‐art of memristor devices based on nanowires and nanorods represent a milestone toward the development of nanowire‐based artificial neural networks.

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Section: Synthesis Of Metal Oxide Nanowires and Nanorodsmentioning

confidence: 99%

Recent Developments and Perspectives for Memristive Devices Based on Metal Oxide Nanowires

Milano

Porro

Valov

et al. 2019

Adv Elect Materials

107

View full text Add to dashboard Cite

show abstract

“…The ropes show sensitivity 4.5% at a NH 3 concentration of 1000 ppm. Metal oxide microyarns, in particular, consisting of nanofibers or nanotubes prepared using electrospinning [19,25], may not be fabricated in this manner because nanotube forests are required but are not readily prepared. Lotus et al [25] reported metal oxide nanofiber yarns.…”

Section: Introductionmentioning

confidence: 98%

“…Metal oxide microyarns, in particular, consisting of nanofibers or nanotubes prepared using electrospinning [19,25], may not be fabricated in this manner because nanotube forests are required but are not readily prepared. Lotus et al [25] reported metal oxide nanofiber yarns. They first prepared nanofibers by electrospinning polymer solution containing metal oxide precursor, then aligned and twisted them into microyarns.…”

Section: Introductionmentioning

confidence: 98%

Enhancement of ethanol gas sensing response based on ordered V2O5 nanowire microyarns

Jin

Yan

et al. 2015

Sensors and Actuators B: Chemical

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“…13 Zinc oxide can be synthesized by various techniques including hydrothermal synthesis, 14 electro deposition, arc discharge method, 15 wet chemical methods, thermal decomposition method, 16 sol-gel methods, vacuum evaporation, 17 direct precipitation, 18 RF plasma synthesis, 19 and electrospinning techniques. 21 It is the most versatile and simple technique for the synthesis of ZnO nanofibers due to its greater efficiency and low cost. 21 It is the most versatile and simple technique for the synthesis of ZnO nanofibers due to its greater efficiency and low cost.…”

Section: Introductionmentioning

confidence: 99%

Silanization of ZnO nanofibers by tetraethoxysilane

Khan

Rasheed

Rafiq

et al. 2017

J of Applied Polymer Sci

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Zinc oxide (ZnO) nanofibers are synthesized by electrospinning technique and then silanized to tailor its structural, optical, and electrical properties. The modification of ZnO nanofibers by chemical treatment of tetraethoxysilane (TEOS) is clearly evident from the appearance of relevant Fourier transform infrared peak at about 1000 cm 21 corresponding to ZnAOASi bond. The height of this peak increases linearly with increase in concentration of silane up to 400 lL, and afterward become plateau up to 500 lL. Diffuse reflectance spectroscopy measurement shows that band gap decreases from 3.35 eV for pure zinc oxide nanofibers to 3.11 eV with successive increase in concentration of TEOS from 100 to 500 lL. The electrical characteristics of modified ZnO nanofibers are analyzed by impedance spectroscopy. It is observed that impedance of ZnO nanofibers increases (resistance from 1.69 3 10 8 to 2.618 3 10 9 ohm and capacitance from 2.043 3 10 212 to 7.618 3 10 213 F) with increase of TEOS concentration. This study provides guidelines for tailoring the electrical properties of ZnO nanofibers.

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Electrical, structural, and chemical properties of semiconducting metal oxide nanofiber yarns

Cited by 46 publications

References 15 publications

Recent Developments and Perspectives for Memristive Devices Based on Metal Oxide Nanowires

Recent Developments and Perspectives for Memristive Devices Based on Metal Oxide Nanowires

Enhancement of ethanol gas sensing response based on ordered V2O5 nanowire microyarns

Silanization of ZnO nanofibers by tetraethoxysilane

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