High‐Performance NiCo<sub>2</sub>O<sub>4</sub> Nanofilm Photodetectors Fabricated by an Interfacial Self‐Assembly Strategy

Hu, Linfeng; Wu, Limin; Liao, Meiyong; Fang, Xiaosheng

doi:10.1002/adma.201004109

Cited by 188 publications

(130 citation statements)

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“…Porous NiCo 2 O 4 nanofl akes and nanosheets have been reported to be synthesized by a hydrothermal method and subsequent thermal decomposition at elevated temperatures. [ 16,31,41,47 ] [ 28 ] Copyright 2011, Wiley-VCH. b) TEM image of core-ring structured NiCo 2 O 4 nanoplatelets.…”

Section: Synthesis Of Nico 2 O 4 Nanostructuresmentioning

confidence: 99%

“…[ 18 ] The high surface-to-volume ratios and rationally designed morphologies of NiCo 2 O 4 nanostructures make them promising materials for application in the fi elds of photoelectric response, such as photodetectors, [ 28 ] photoelectrochemical cells, [ 1 ] photo voltaic devices, [ 91 ] and photocatalysis. [ 18 ] Photodetectors, for photon detection in the visible or ultraviolet regions, has exhibited extensive applications in the fi eld of environmental and biological research, sensors, etc.…”

Section: Photoelectronic Performancementioning

confidence: 99%

“…For example, we fabricated a high-performance NiCo 2 O 4 nanofi lm photodetector with hexagonal NiCo 2 O 4 nanoplatelets by a simple oil/water interfacial assembly strategy. [ 28 ] The NiCo 2 O 4 photodetector nanodevice is based on a two-layer NiCo 2 O 4 nanofi lm, which is fabricated from hexagonal NiCo 2 O 4 nanoplatelets by repeating the oil/water interfacial assembly strategy twice. [ 95 ] The high crystal quality of hexagonal NiCo 2 O 4 nanoplatelets facilitates highly efficient optical absorption and more photogenerated carriers, decreasing the resistance of an individual NiCo 2 O 4 nanoplatelet.…”

Section: Photoelectronic Performancementioning

confidence: 99%

“…[ 42 ] The extensive applications of NiCo 2 O 4 has encouraged the exploration of precise syntheses of particular NiCo 2 O 4 nanostructures. So far, the synthesis of 1D nanowires, [ 43,44 ] nanorods, [ 25,45 ] nanotubes, [ 46 ] 2D nanosheets, [ 15,16,18,28,38,47 ] nanofl akes, [ 31 ] and 3D hierarchical structures [ 48 ] such as urchin-like structures, [49][50][51][52][53] nanofl owers, [ 17 ] and arrays composed of nanowires, [ 11,[54][55][56][57][58] nanorods, [ 59,60 ] nanofl akes, [ 32 ] and nanosheets, [ 61 ] have been comprehensively investigated. One-dimensional NiCo 2 O 4 nanostructured materials provide effi cient pathways for the transport of electrons and ions, leading to faster diffusion kinetics and a higher rate capability for energy-storage applications.…”

Section: Introductionmentioning

confidence: 99%

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Nickel Cobaltite Nanostructures for Photoelectric and Catalytic Applications

Liu

et al. 2015

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Bimetallic oxide nickel cobaltite (NiCo2 O4 ) shows extensive potential for innovative photoelectronic and energetic materials owing to their distinctive physical and chemical properties. In this review, representative fabrications and applications of NiCo2 O4 nanostructures are outlined for photoelectronic conversion, catalysis, and energy storage, aiming to promote the development of NiCo2 O4 nanomaterials in these fields through an analysis and comparison of their diverse nanostructures. Firstly, a brief introduction of the spinel structures, properties, and morphologies of NiCo2 O4 nanomaterials are presented. Then, the advanced progress of NiCo2 O4 nanomaterials for both photoelectronic conversion and energy fields is summarized including such examples as solar cells, electrocatalysis, and lithium ion batteries. Finally, further prospects and promising developments of NiCo2 O4 nanomaterials in these significant fields are proposed.

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Section: Synthesis Of Nico 2 O 4 Nanostructuresmentioning

confidence: 99%

Section: Photoelectronic Performancementioning

confidence: 99%

Section: Photoelectronic Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nickel Cobaltite Nanostructures for Photoelectric and Catalytic Applications

Liu

et al. 2015

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“…Properties of nano-objects with varying size and atomic level structure have been investigated in hopes to find candidates for technological applications, such as photodetectors, 1 optical modulators, 2 photovoltaic cells, 3 and nanoelectronics. 4 Graphene, composed solely of carbon which is one of the most abundant elements on earth, bears all of the properties required for harnessing it for the above-mentioned applications.…”

mentioning

confidence: 99%

Real-time monitoring of graphene patterning with wide-field four-wave mixing microscopy

Koivistoinen

Aumanen

Hiltunen

et al. 2016

Applied Physics Letters

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The single atom thick two-dimensional graphene is a promising material for various applications due to its extraordinary electronic, optical, optoelectronic, and mechanical properties. The demand for developing graphene based applications has entailed a requirement for development of methods for fast imaging techniques for graphene. Here, we demonstrate imaging of graphene with femtosecond wide-field four-wave mixing microscopy. The method provides a sensitive, non-destructive approach for rapid large area characterization of graphene. We show that the method is suitable for online following of a laser patterning process of microscale structures on single-layer graphene.

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Electrical Transport Properties of Large, Individual NiCo₂O₄ Nanoplates

Liao

et al. 2012

Adv Funct Materials

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308

217

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Understanding the electrical transport properties of individual semiconductor nanostructures is crucial to advancing their practical applications in high‐performance nanodevices. Large‐sized individual nanostructures with smooth surfaces are preferred because they can be easily made into nanodevices using conventional photolithography procedures rather than having to rely on costly and complex electron‐beam lithography techniques. In this study, micrometer‐sized NiCo2O4 nanoplates are successfully prepared from their corresponding hydroxide precursor using a quasi‐topotactic transformation. The Co/Ni atomic arrangement shows no changes during the transformation from the rhombohedral LDH precursor (space group R$ \bar 3 $m) to the cubic NiCo2O4 spinel (space group Fd $ \bar 3 $m), and the nanoplate retains its initial morphology during the conversion process. In particular, electrical transport within an individual NiCo2O4 nanoplate is further investigated. The mechanisms of electrical conduction in the low‐temperature range (T < 100 K) can be explained in terms of the Mott's variable‐range hopping model. At high temperatures (T > 100 K), both the variable‐range hopping and nearest‐neighbor hopping mechanisms contribute to the electrical transport properties of the NiCo2O4 nanoplate. These initial results will be useful to understanding the fundamental characteristics of these nanoplates and to designing functional nanodevices from NiCo2O4 nanostructures.

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High‐Performance NiCo₂O₄ Nanofilm Photodetectors Fabricated by an Interfacial Self‐Assembly Strategy

Cited by 188 publications

References 32 publications

Nickel Cobaltite Nanostructures for Photoelectric and Catalytic Applications

Nickel Cobaltite Nanostructures for Photoelectric and Catalytic Applications

Real-time monitoring of graphene patterning with wide-field four-wave mixing microscopy

Electrical Transport Properties of Large, Individual NiCo₂O₄ Nanoplates

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High‐Performance NiCo2O4 Nanofilm Photodetectors Fabricated by an Interfacial Self‐Assembly Strategy

Cited by 188 publications

References 32 publications

Nickel Cobaltite Nanostructures for Photoelectric and Catalytic Applications

Nickel Cobaltite Nanostructures for Photoelectric and Catalytic Applications

Real-time monitoring of graphene patterning with wide-field four-wave mixing microscopy

Electrical Transport Properties of Large, Individual NiCo2O4 Nanoplates

Contact Info

Product

Resources

About

High‐Performance NiCo₂O₄ Nanofilm Photodetectors Fabricated by an Interfacial Self‐Assembly Strategy

Electrical Transport Properties of Large, Individual NiCo₂O₄ Nanoplates