Mechanical and electronic properties of vanadium oxide nanotubes

Sipos, Bence; Duchamp, Martial; Magrez, Arnaud; Forró, Lászlø; Barišić, N.; Kis, András; Seo, Jin Won; Bieri, Fabian; Krumeich, Frank; Nesper, Reinhard; Patzke, Greta R.

doi:10.1063/1.3103280

Cited by 29 publications

(19 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[87][88][89][90] The NWs morphology and dimensions, aspect ratio and area density, as well as their ordering, can be tailored by the anodization process parameters (voltage) and the choice of template characteristics. [105] Hydrothermal techniques were widely used to produce a large variety of metal oxide nanostructures, like oxides of Ti, [106][107][108][109] V, [110][111][112][113][114][115] Cd, [116,117] Zn, [75,[118][119][120][121][122][123] Fe, [124][125][126] Mn, [127,128] Mo, [129,130] Co. [131] On the other hand, electrospinning techniques are characterized by the formation of nanosized fibers induced by the application of high voltages to precursor solutions that are jetted over a substrate. In this approach, colloidal dispersions of nanosized charged particles are set into an oriented motion by the application of an external electric field.…”

Section: Synthesis Of Metal Oxide Nanowires and Nanorodsmentioning

confidence: 99%

“…Ultrasonic stirring or microwave heating can assist the process . Hydrothermal techniques were widely used to produce a large variety of metal oxide nanostructures, like oxides of Ti, V, Cd, Zn, Fe, Mn, Mo, Co . On the other hand, electrospinning techniques are characterized by the formation of nanosized fibers induced by the application of high voltages to precursor solutions that are jetted over a substrate .…”

Section: Synthesis Of Metal Oxide Nanowires and Nanorodsmentioning

confidence: 99%

See 1 more Smart Citation

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

Milano

Porro

Valov

et al. 2019

Adv Elect Materials

116

View full text Add to dashboard Cite

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.

show abstract

Section: Synthesis Of Metal Oxide Nanowires and Nanorodsmentioning

confidence: 99%

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

116

View full text Add to dashboard Cite

show abstract

“…Monoclinic VO 2 (M) shows a reversible rst-order metalinsulator transition (MIT) at 68 C. 6 When the insulating VO 2 (M) is converted into the metallic rutile phase (R), drastic changes occur in both electrical and optical properties. 7,8 As a result, VO 2 has been attracting much attention owing to the potential applications in high-tech elds, such as, sensors, 9,10 catalysts, 11 lithium-ion batteries, 12 storage medium, 13 smart windows [14][15][16][17] and so on. Since the size and morphology of nanostructures affect the physical and chemical properties greatly.…”

Section: Introductionmentioning

confidence: 99%

Hexagonal VO₂ particles: synthesis, mechanism and thermochromic properties

et al. 2018

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…Recently, there has been some newly reported VO 2 nanostructures (W‐doped VO 2 @SiO 2 nanoparticles,[11b] VO 2 nanonets,[11c] TiO 2 (R)/VO 2 (M)/TiO 2 (A) multilayer film[11d]) in smart window applications, where the nanoparticles, nanonets, and multilayer films showed T lum /Δ T sol = 50.6%/14.7%, 46.3%/10.7%, 29.0%/10.2%, respectively. VO 2 nanostructures have also been found to promising candidates for sensors and other device applications, including single‐domain switches, flexible strain sensors, field‐effect transistors, solid‐state thermal memories, and batteries . As a result, the low temperature synthesis of crystalline VO 2 nanostructures is of great importance.…”

Section: Introductionmentioning

confidence: 99%

Single‐Crystalline W‐Doped VO₂ Nanobeams with Highly Reversible Electrical and Plasmonic Responses Near Room Temperature

Wang

Duchamp

Xue

et al. 2016

Adv Materials Inter

View full text Add to dashboard Cite

VO 2 with high valence metal cations. [17][18][19][20][21] Tungsten (W 6+ ) cations have been found to be the most efficient dopants for lowering τ c at a rate of ≈20-28 K per at%. [22] In the past, high temperature evaporation, [23][24][25][26] sol-gel methods, [27] and magnetron sputtering [28] have been used to fabricate nanostructured VO 2 materials using complex equipment. In contrast, hydrothermal synthesis is an alternative facile method to prepare nanostructured metal oxides at relatively low temperatures (<300 °C), owing to the increased solubility of oxides in hot water under a high autogenous vapor pressure. [29] Nanostructured VO 2 materials, including nanopowders [30,31] and nanoasterisks, [33] have been synthesized under hydrothermal conditions below 300 °C with polycrystalline characteristics, complicating studies of the single-domain metal-insulator phase transition. Hydrothermally synthesized nanorods [32] have previously been reported to be micron-sized or larger in length, limiting their use in smart applications. To the best of our knowledge, there is still no report of the hydrothermal synthesis and investigation of uniform single-crystalline W-doped VO 2 nanobeams that are below 100 nm in width and 500 nm in length, although high temperature evaporation has been used to fabricate similar structures. [34] In this paper, we report a simple hydrothermal process to synthesize W-doped single-crystalline VO 2 nanobeams and propose a rolling mechanism to explain their structural evolution from the starting 2D V 2 O 2 -H 2 O 2 layered material to vanadium oxide nanowires/nanobeams and nanopowders. A uniform distribution of W dopants in the VO 2 nanobeams results in a high doping efficiency and a unique surface plasmon resonance (SPR). The SPR is favored in thermochromic smart window applications to enhance their solar modulation ability ΔT sol (defined as the solar transmission difference above and below τ c ). It occurs only in the metallic state of VO 2 , leading to enhanced absorption at high temperature and consequently reducing transmission above τ c without compromising the transmission in the insulating state below τ c . Results and DiscussionN 2 H 4 ·H 2 O is an effective reagent to synthesize VO 2 by reducing the V 2 O 5 starting material (2V 2 O 5 +N 2 H 4 ·H 2 O→4VO 2 +N 2 +3H 2 O). [35] However, residual H 2 O 2 in the Single-crystalline vanadium dioxide (VO 2 ) nanostructures are of great interest because of their single-domain metal-to-insulator transition. In this paper, singlecrystalline W-doped VO 2 nanobeams are synthesized for optical and electrical applications. As a result of differences in the polarization of the beams along their transverse and longitudinal axes, dual-surface plasmon resonance peaks at 1344 and 619 nm are generated, resulting in an increase in the solar modulating abilities of the VO 2 nanobeams. The conductivity of the single-crystalline W-doped VO 2 nanobeams changes by three to four orders of magnitude at the transition temperature, which is of great import...

show abstract

Mechanical and electronic properties of vanadium oxide nanotubes

Cited by 29 publications

References 34 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

Hexagonal VO₂ particles: synthesis, mechanism and thermochromic properties

Single‐Crystalline W‐Doped VO₂ Nanobeams with Highly Reversible Electrical and Plasmonic Responses Near Room Temperature

Contact Info

Product

Resources

About

Mechanical and electronic properties of vanadium oxide nanotubes

Cited by 29 publications

References 34 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

Hexagonal VO2 particles: synthesis, mechanism and thermochromic properties

Single‐Crystalline W‐Doped VO2 Nanobeams with Highly Reversible Electrical and Plasmonic Responses Near Room Temperature

Contact Info

Product

Resources

About

Hexagonal VO₂ particles: synthesis, mechanism and thermochromic properties

Single‐Crystalline W‐Doped VO₂ Nanobeams with Highly Reversible Electrical and Plasmonic Responses Near Room Temperature