A review on hybrid nanolaminate materials synthesized by deposition techniques for energy storage applications

Azadmanjiri, Jalal; Berndt, C. C.; Wang, James; Kapoor, Ajay; Srivastava, V. K.; Wen, Cuié

doi:10.1039/c3ta14034b

Cited by 117 publications

(86 citation statements)

References 113 publications

(187 reference statements)

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“…Annealing the sample in vacuum promotes the formation of more suboxides in the film composition while keeping the pentoxide dominating, at least on the sample surface. 5 The Al 2p spectrum of the alumina-free sample is shown in Figure 5f. The spectrum is well reproduced by a symmetrical singlet with a BE energy of 74.5 eV and a FWHM of 1.4 eV, which is associated with alumina (Al 2 O 3 ).30…”

Section: Film Compositionmentioning

confidence: 99%

“…Two doublets of appropriately constrained peaks (Nb 3d 5/2 and Nb 3d 3/2 ) are used to reproduce the spectrum. The Nb 3d 3/2 peak for each species is constrained to be at a fixed energy increment of 2.75 eV above the Nb 3d 5/2 peak, and the intensity ratio of the Nb 3d 5 from the dominating spectrum component, is associated with Nb 3d 5/2 and 3d 3/2 electrons emitted from niobium atoms with +4 oxidation state (NbO 2 ). 32 No peaks attributed to metallic niobium are present in the spectrum.…”

Section: Film Compositionmentioning

confidence: 99%

“…16,17 Another electrochermical approach was pionired by Surganov and Mozalev,18 in which one-dimensional (1-D) spatially-ordered metal-oxide nanostructures are synthesized via anodizing a thin layer of Al superimposed on a layer of different valve metal. In 5 this approach, a nanoporous alumina is first formed from the Al layer, this being followed by processing the underlying metal through the alumina nanopores. Up to now, periodic arrays of 1-D hillock-like oxide nano-and microstructures have been synthesized from the Al/Ta, 19 Al/Ti, 20 Al/W, 21 and Al/Nb.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5][6] In the microelectronic industry, NO is considered as a high-permittivity dielectric instead for silicon dioxide in semiconductor devices. 7 NO is also described as a promising substitute for tantalum oxide 35 in solid-electrolyte Ta 2 O 5 /Ta capacitors, 8 due to the advantage of greater natural abundance and lower price of raw material.…”

Section: Introductionmentioning

confidence: 99%

“…ToF-SIMS analysis was carried out in an ION-TOF IV instrument (ION-TOF GmbH, Münster, Germany) with the depth profiles measured using the instrument in dual beam mode. A 10-keV Ar + ion beam of a current of 1.0 pA, rastered over a scan area of 5 × 5 μm, was used as the 5 analysis probe. Surface sputtering was performed using a 3-keV Ar + ion beam at a current of 10 nA, rastered over an area of 200 × 200 μm.…”

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confidence: 99%

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Formation–structure–properties of niobium-oxide nanocolumn arrays via self-organized anodization of sputter-deposited aluminum-on-niobium layers

et al. 2014

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Nanostructured niobium oxide (NO) semiconductor is gaining increasing attention as electronic, optical, and electro-optic material. However, the preparation of stable NO nanofilms with reproducible morphology and behavior remains a challenge. 10Here we show a rapid, well-controlled, and efficient way to synthesize NO films with the self-organized columnlike nanostructured morphologies and advanced functional properties. The films are developed via the growth of a nanoporous anodic alumina layer, followed by the pore-directed 15 anodizing of the Nb underlayer. The columns may grow 30-150 nm wide, up to 900 nm long, with the aspect ratio up to 20, being anchored to a thin continuous oxide layer that separates the columns from the substrate. The as anodized films have a graded chemical composition changing from amorphous Nb 2 O 5 mixed with Al 2 O 3 , Si-, and P-containing species in the surface region to NbO 2 in the lower film layer. The post-anodizing treatments result in the controlled 20 formation of Nb 2 O 5 , NbO 2 , and NbO crystal phases, accompanied by transformation from nearly perfect dielectric to n-type semiconductor behavior of the films. The approach allows for the smooth film growth without early dielectric breakdown, stress-generated defects, or destructive dissolution at the respective interfaces, which is a unique situation in the oxide films on niobium. The functional properties of the NO films, revealed to date, allow for potential applications as nanocomposite capacitor dielectrics and active 25 layers for semiconductor gas microsensors with the sensitivity to ethanol and the response to hydrogen being among best ever reported.

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Section: Film Compositionmentioning

confidence: 99%

Section: Film Compositionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Formation–structure–properties of niobium-oxide nanocolumn arrays via self-organized anodization of sputter-deposited aluminum-on-niobium layers

et al. 2014

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Nanocrystallization by Surface Mechanical Attrition Treatment

Bagheri

Gheytani

Masiha

et al. 2015

Handbook of Mechanical Nanostructuring

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Liquid Metals‐Assisted Synthesis of Scalable 2D Nanomaterials: Prospective Sediment Inks for Screen‐Printed Energy Storage Applications

Azadmanjiri

Reddy²,

Guzzetta

et al. 2021

Adv Funct Materials

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The advents in flexible and smart technology like wearable electronics have accelerated the demand for high‐performance energy‐storage devices. These devices could significantly reduce the size of the next‐generation wearable smart electronics. A selection of suitable printing technology and its product typically offer a reasonable manufacturing pathway like high deposition rate, low materials waste, scalable fabrication, and high‐performance production. Therefore, the production of novel functional inks with desirable rheological properties that authorize high‐resolution printing, are some major challenges of this technology. This work has an emphasis on the recent advancements in supporting and utilizing liquid metals chemistry to synthesis high‐quality and scalable 2D nanomaterials by liquid‐phase free exfoliation and facile sonication‐assisted methods. These are novel concepts in synthesizing 2D nanomaterials particularly for those which either have not intrinsic layered crystal structures or those with strong interaction between their crystal layers which are difficult to synthesized using conventional approaches. It also provides some potentials to make sustainable ink formulation of such 2D nanostructures for the fabrication of high‐quality screen‐printed patterns for sustainable energy applications. Subsequently, it deals with the possibilities and challenges of printing such 2D nanomaterials (namely, 2D metal oxides) for micro‐supercapacitor and micro‐battery applications on an industrially viable scale.

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A review on hybrid nanolaminate materials synthesized by deposition techniques for energy storage applications

Abstract: Nanostructured materials such as nanocomposites and nanolaminates are currently of intense interest in modern materials research.

Cited by 117 publications

References 113 publications

Formation–structure–properties of niobium-oxide nanocolumn arrays via self-organized anodization of sputter-deposited aluminum-on-niobium layers

Formation–structure–properties of niobium-oxide nanocolumn arrays via self-organized anodization of sputter-deposited aluminum-on-niobium layers

Nanocrystallization by Surface Mechanical Attrition Treatment

Liquid Metals‐Assisted Synthesis of Scalable 2D Nanomaterials: Prospective Sediment Inks for Screen‐Printed Energy Storage Applications

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