Microwave-assisted synthesis of nanosized MoSe2

Harpeness, R.; Gedanken, Aharon; Weiss, A. M.; Slifkin, M.A.

doi:10.1039/b303740a

Cited by 69 publications

(26 citation statements)

References 29 publications

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“…[50,51] Initially, a stoichiometric amount of selenium (1.24 g) was dissolved in the 40 mL solution containing sodium borohydride (0.2 g) and stirred until the formation of a red colored solution. [50,51] Initially, a stoichiometric amount of selenium (1.24 g) was dissolved in the 40 mL solution containing sodium borohydride (0.2 g) and stirred until the formation of a red colored solution.…”

Section: Methodsmentioning

confidence: 99%

A High Efficacy Self‐Charging MoSe₂ Solid‐State Supercapacitor Using Electrospun Nanofibrous Piezoelectric Separator with Ionogel Electrolyte

Pazhamalai

Krishnamoorthy

Mariappan

et al. 2018

Adv Materials Inter

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compartments, namely, (i) energy harvesting and (ii) energy storage in which the former generates the energy while the latter is used to store the generated energy. [6,7] Renewable energy sources such as solar, wind, hydropower, mechanical energy (piezoelectric/triboelectric nanogenerator), and electrochemical energy (fuel cells) are used as energy harvesting system, whereas batteries and supercapacitors are used as energy storing system in the design of selfcharging power system. [8][9][10][11][12] Renewable power source based self-charging power system such as coupling of the solar cell/ photovoltaics with the electrochemical energy storage are commercialized for making use of the photon energy into useful energy. [13,14] Hitherto, the utilization of biomechanical energy for the selfcharging system is still in research level, and further efforts are needed to be undertaken for practical applications. The concept of self-charging and/or self-powered system for harvesting and storing mechanical and/or biomechanical energy becomes plausible after the research findings of Wang and co-workers for the first time when they designed a self-powered system using nanogenerator (NG) and supercapacitor in 2012. [2] Up to date two different types of self-charging power cells have been reported such as (i) external powering and (ii) internally integrating the system. [8,[15][16][17] In the former case, the mechanical energy harvester is externally connected to the energy storage device using a rectifier, whereas the latter uses an all-in-one integrated system which will be beneficial for several applications in portable and wearable devices due to their miniaturized size. [18,19] The pulsating alternating current output of nanogenerator is the major concern for the practical application of NG based self-charging power cells (SCPCs) due to their low energy conversion efficiency. [7,20] Therefore, the design and development of high-performance self-charging power cell with high energy conversion efficiency are highly essential. In this scenario, integrated self-charging supercapacitor power cell (SCSPC) utilizing supercapacitor as energy storage device attracts much attention compared to batteries mainly due to the fast charging rates of a capacitive type electrode; it can scavenge/store the piezo-electrochemically generated Self-charging supercapacitor power cell (SCSPC) received much attention for harvesting and storing energy in an integrated device, which paves the way for developing maintenance free autonomous power systems for various electronic devices. In this work, a new type of SCSPC device is fabricated comprising 2D molybdenum di-selenide (MoSe 2 ) as an energy storing electrode with polyvinylidene fluoride-co-hexafluoropropylene/ tetraethylammonium tetrafluoroborate (PVDF-co-HFP/TEABF 4 ) ion gelled polyvinylidene fluoride/sodium niobate (PVDF/NaNbO 3 ) as the piezopolymer electrolyte. The fabricated SCSPC delivers a specific capacitance of 18.93 mF cm −2 with a specific energy of 37.90 mJ cm −2 at a specific power...

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Section: Methodsmentioning

confidence: 99%

A High Efficacy Self‐Charging MoSe₂ Solid‐State Supercapacitor Using Electrospun Nanofibrous Piezoelectric Separator with Ionogel Electrolyte

Pazhamalai

Krishnamoorthy

Mariappan

et al. 2018

Adv Materials Inter

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“…Microwaveassisted heating has been gaining importance in the synthesis of semiconducting nanostructures because of its unique effects, such as rapid and selective heating, higher reaction rates, increased product yields, and energy savings [12]. Synthesis of ZnO nanostructures by microwave irradiation is a simple and fast process, it could result linked rods of different morphology at low temperature.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of multi‐linked ZnO rods by microwave heating

Kathalingam

Chae

Rhee

2011

Cryst. Res. Technol.

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Synthesis of linked ZnO micro rods by microwave radiation and its characterization is presented in this report. In this simple microwave assisted solution phase route zinc nitrate and hexamethylenetetramine has been used as the starting materials for the synthesis of linked ZnO rods. Linked ZnO rods with various morphologies such as bipods, tripods, tetrapods and etc have been prepared. The influence of irradiation time of microwave on the formation of linked ZnO rods was investigated. X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM), and energy dispersive spectroscopy (EDS) were used for the characterization of the product. The FESEM images showed ZnO rods of diameter in the range of 100 -200 nm and length around 5000 nm.

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“…Among the layered compounds, MoSe 2 has been recognized as ideal model compounds for the studies involving surfaces, photoreactions, adsorption phenomena and catalysis, scanning tunneling microscopy, spectroscopy and epitaxial growth of thin films [1][2][3]. The extremely anisotropic character of the layer compounds built in at the atomic level, dominates all the properties of such materials, both mechanical and electrical.…”

Section: Introductionmentioning

confidence: 99%

Analysis of current ‐ voltage ‐ temperature characteristics of In and Cu contacts on n‐type MoSe₂ single crystals

Sumesh

Patel

Pathak

et al. 2010

Cryst. Res. Technol.

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The current voltage characteristics of In / Cu with n-type MoSe 2 Schottky diodes were measured over a wide temperature range 50 < T < 300 K. The interface formed by In and MoSe 2 shows ohmic behavior after annealing the contact at 100 °C for 12 h. The ohmic nature was retained at all the measured temperatures. The Cu -nMoSe 2 interface formed a Schottky junction diode with a good rectification ratio. The Schottky barrier height and the ideality factor thereby obtained were 0.72 eV and 1.45, respectively, at room temperature. Below room temperature, the barrier height and the ideality factor vary with decreasing temperature. The changes are significant at low temperatures. Barrier height inhomogeneities at the interface cause deviation in the zero-bias barrier height and the ideality factor at low temperatures, and produce extra current such that I-V characteristics remain consistent with the thermionic emission mechanism.

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Microwave-assisted synthesis of nanosized MoSe2

Cited by 69 publications

References 29 publications

A High Efficacy Self‐Charging MoSe₂ Solid‐State Supercapacitor Using Electrospun Nanofibrous Piezoelectric Separator with Ionogel Electrolyte

A High Efficacy Self‐Charging MoSe₂ Solid‐State Supercapacitor Using Electrospun Nanofibrous Piezoelectric Separator with Ionogel Electrolyte

Synthesis of multi‐linked ZnO rods by microwave heating

Analysis of current ‐ voltage ‐ temperature characteristics of In and Cu contacts on n‐type MoSe₂ single crystals

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Microwave-assisted synthesis of nanosized MoSe2

Cited by 69 publications

References 29 publications

A High Efficacy Self‐Charging MoSe2 Solid‐State Supercapacitor Using Electrospun Nanofibrous Piezoelectric Separator with Ionogel Electrolyte

A High Efficacy Self‐Charging MoSe2 Solid‐State Supercapacitor Using Electrospun Nanofibrous Piezoelectric Separator with Ionogel Electrolyte

Synthesis of multi‐linked ZnO rods by microwave heating

Analysis of current ‐ voltage ‐ temperature characteristics of In and Cu contacts on n‐type MoSe2 single crystals

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A High Efficacy Self‐Charging MoSe₂ Solid‐State Supercapacitor Using Electrospun Nanofibrous Piezoelectric Separator with Ionogel Electrolyte

A High Efficacy Self‐Charging MoSe₂ Solid‐State Supercapacitor Using Electrospun Nanofibrous Piezoelectric Separator with Ionogel Electrolyte

Analysis of current ‐ voltage ‐ temperature characteristics of In and Cu contacts on n‐type MoSe₂ single crystals