Nanoscale synthesis and optical features of nickel nanoparticles

Hemalatha, M.; Suriyanarayanan, N.; Prabahar, S.

doi:10.1016/j.ijleo.2013.09.069

Cited by 19 publications

(8 citation statements)

References 23 publications

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“…The obtained diffraction pattern is in good agreement with the standard Ni nanoparticles diffraction pattern provided by International Centre for Diffraction Data (ICDD), PDF file No. 01-070-1849[40],[44]. No other phase was observed in the diffractogram indicating that printed Ni nanoparticles had a single phased cubic structure, which is consistent with the observed Ni morphology using SEM.Further, X-Ray diffractograms of the printed Ni annealed at different temperatures 145 • C (Ni145), 200 • C (Ni200) and…”

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confidence: 79%

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Nickel Based RTD Fabricated via Additive Screen Printing Process for Flexible Electronics

et al. 2019

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A novel nickel (Ni)-based resistance temperature detector (RTD) was successfully developed for temperature monitoring applications. The RTD was fabricated by depositing Ni ink on a flexible polyimide substrate using the screen printing process. Thermogravimetric analysis was performed to study the thermal behavior of the Ni ink, and it was observed that the Ni ink can withstand up to 200 • C before the decomposition of the binder in the ink system. Scanning electron microscopy and white light interferometry were used to analyze the surface morphology of the printed Ni. X-ray diffractometry was used to obtain structural information, phase, and crystallite size of the deposited Ni nanoparticles. Energy dispersive X-ray spectroscopy was used to obtain semi-quantitative information of the elements present in the fabricated RTD. The capability of the RTD to detect temperatures varying from −60 • C to 180 • C, in steps of 20 • C, was investigated at a constant relative humidity of 20%RH. The results of the RTD demonstrated a linear response with resistive changes as high as 113% at 180 • C when compared with its base resistance at −60 • C. An average TCR of 0.44%/ • C was calculated for the printed RTD with a response time of <10 s. The obtained results demonstrated the feasibility of employing Ni on flexible substrates for the development of flexible temperature sensors. INDEX TERMS Flexible temperature sensor, nickel, RTD, screen printing, TCR, TGA, XRD. PAUL D. FLEMING received the B.Sc. degree in physics from The Ohio State University, Columbus, OH, USA, in 1964, and the master's degree in physics and the Ph.D. degree in chemical physics

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confidence: 79%

“…Further, it is evident from Fig. 6(c) that the printed Ni particles exhibited typical cubic or multiangular morphology [39], [40]. In addition, spherical Ni particles were also observed due to low temperature sintering (curing) of the Ni particles [39].…”

Section: Resultsmentioning

confidence: 88%

Nickel Based RTD Fabricated via Additive Screen Printing Process for Flexible Electronics

et al. 2019

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“…The step size and the dwell time of the measurements were 0.1° and 2 s, respectively. Bragg reflections were observed corresponding to (111), (200), and (220) planes of a typical face-centered cubic (fcc) Ni. − No other phase was observed in the diffractogram indicating that printed Ni particles had a single phase cubic structure, as observed in the SEM. The crystallite size ( D ) of the printed Ni was calculated to be 22 nm using Scherrer’s formula shown in eq . …”

Section: Results and Discussionmentioning

confidence: 91%

Impact of Substrate and Process on the Electrical Performance of Screen-Printed Nickel Electrodes: Fundamental Mechanism of Ink Film Roughness

Altay

Jourdan

Turkani

et al. 2018

ACS Appl. Energy Mater.

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In recent years, traditional printing methods have been integrated to print flexible electronic devices and circuits. Since process requirements for electronics differ from those for graphic printing, the fundamentals require rediscovery mainly to optimize manufacturing techniques and to find cost reduction methods without compromising functional performance. In addition, alternative inks need to be formulated to increase the variety of functional inks and to pioneer new product developments. In this report, we investigate a thermoplastic-based nickel ink prototype to print electrodes using a screen-printing process. Process fundamentals are explored, and cost reduction methods are addressed by studying the effect of substrate roughness, print direction, and number of ink layers on the electrical performance of printed nickel. Multilayered electrodes are printed on paper and heat stabilized engineered film. A novel fundamental mechanism is found that explains the effect of substrate roughness on ink film roughness in screen printing, including the roughness measurement of the screen mesh wire that is reported for the first time. Results demonstrated that (i) surface roughness of substrates does not have significant effect on printed ink film roughness in screen printing; (ii) ink film thickness is higher on nonabsorbent materials, while line gain is higher on absorbent materials; (iii) the effect of electrode orientation on electrical performance is insignificant; and (iv) the effect of substrate roughness on the electrical performance for the first print layer can be eliminated by printing multiple layers. The results significantly affect substrate choice and number of ink layers, which are considered the major cost factors in the manufacturing of printed electronics.

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“…The intensity of the emission is highest for nanocomposite F9 while for the other two samples the emission intensity decreases. The changes in the emission intensity and the blue shifts of the emission band can be due to a quantum size confinement effect [29].…”

Section: Surface Characteristics -Contact Angle Measurementsmentioning

confidence: 99%

Photophysical and surface characteristics of electrospun polysulfone/nickel fibers

Pascariu

Airinei²,

Homocianu³

et al. 2015

Materials Research Bulletin

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Nanoscale synthesis and optical features of nickel nanoparticles

Cited by 19 publications

References 23 publications

Nickel Based RTD Fabricated via Additive Screen Printing Process for Flexible Electronics

Nickel Based RTD Fabricated via Additive Screen Printing Process for Flexible Electronics

Impact of Substrate and Process on the Electrical Performance of Screen-Printed Nickel Electrodes: Fundamental Mechanism of Ink Film Roughness

Photophysical and surface characteristics of electrospun polysulfone/nickel fibers

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