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Title: Structure, electrical characteristics, and high-temperature stability of aerosol jet printed silver nanoparticle films

Authors:
; ORCiD logo; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1297261
Grant/Contract Number:
FE0026170
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 120; Journal Issue: 7; Related Information: CHORUS Timestamp: 2016-12-26 03:02:05; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics
Country of Publication:
United States
Language:
English

Citation Formats

Rahman, Md Taibur, McCloy, John, Ramana, C. V., and Panat, Rahul. Structure, electrical characteristics, and high-temperature stability of aerosol jet printed silver nanoparticle films. United States: N. p., 2016. Web. doi:10.1063/1.4960779.
Rahman, Md Taibur, McCloy, John, Ramana, C. V., & Panat, Rahul. Structure, electrical characteristics, and high-temperature stability of aerosol jet printed silver nanoparticle films. United States. doi:10.1063/1.4960779.
Rahman, Md Taibur, McCloy, John, Ramana, C. V., and Panat, Rahul. 2016. "Structure, electrical characteristics, and high-temperature stability of aerosol jet printed silver nanoparticle films". United States. doi:10.1063/1.4960779.
@article{osti_1297261,
title = {Structure, electrical characteristics, and high-temperature stability of aerosol jet printed silver nanoparticle films},
author = {Rahman, Md Taibur and McCloy, John and Ramana, C. V. and Panat, Rahul},
abstractNote = {},
doi = {10.1063/1.4960779},
journal = {Journal of Applied Physics},
number = 7,
volume = 120,
place = {United States},
year = 2016,
month = 8
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1063/1.4960779

Citation Metrics:
Cited by: 2works
Citation information provided by
Web of Science

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  • Printed electronics has emerged as a versatile eco-friendly fabrication technique to create sintered nanoparticle (NP) films on arbitrary surfaces with an excellent control over the film microstructure. While applicability of such films for high-temperature applications is not explored previously, herein we report the high-temperature electrical stability of silver (Ag) metal NP films fabricated using an Aerosol Jet based printing technique and demonstrate that this behavior is dictated by changes in the film microstructure. In-situ high temperature (24–500 °C) impedance spectroscopy measurements show that the real part of the impedance increases with increasing temperature up to 150 °C, at which point a decreasingmore » trend prevails until 300 °C, followed again by an increase in impedance. The electrical behavior is correlated with the in-situ grain growth of the Ag NP films, as observed afterwards by scanning electron microscopy and X-ray diffraction (XRD), and could be tailored by controlling the initial microstructure through sintering conditions. Using combined diffraction and spectroscopic analytical methods, it is demonstrated the Aerosol Jet printed Ag NP films exhibit enhanced thermal stability and oxidation resistance. In addition to establishing the conditions for stability of Ag NP films, the results provide a fundamental understanding of the effect of grain growth and reduction in grain boundary area on the electrical stability of sintered NP films.« less
  • Printing silver nanoparticle inks to generate conductive structures for electronics on polymer substrates has gained increasing relevance in recent years. In this context, the Aerosol-Jet Technology is well suited to print silver ink on 3D-Molded Interconnect Devices (MID). The deposited ink requires thermal post-treatment to obtain sufficient electrical conductivity and adhesion. However, commonly used oven sintering cannot be applied for many thermoplastic substrates due to low melting temperatures. In this study a new sintering technology, selective light sintering, is presented, based on the focused, continuous light beam of a xenon lamp. Sintering experiments were conducted with Aerosol-Jet printed structures onmore » various polycarbonate (PC) substrates. Especially on neat, light transparent PC, silver tracks were evenly sintered with marginal impact to the substrate. Electrical conductivities significantly exceed the values obtained with conventional oven sintering. Adhesive strength is sufficient for conductive tracks. Experiments with non-transparent PC substrates led to substrate damage due to increased light absorption. Therefore a concept for a variation of light sintering was developed, using optical filters. First experiments showed significant reduction of substrate damage and good sintering qualities. The highly promising results of the conducted experiments provide a base for further investigations to increase adhesion and qualifying the technology for MID applications and a broad spectrum of thermoplastic substrates.« less
  • ZnO nanoparticles of different size were prepared by varying the molar ratio of glycine and zinc nitrate hexahydrate as fuel and oxidizer (F/O = 0.8, 1.11, 1.7) by simple solution combustion method. Powder samples were characterized by UV-Visible spectrophotometer, X-ray diffractometer, Scanning electron microscope (SEM). DC electrical conductivity measurements at room temperature and in the temperature range of 313-673K were carried out for the prepared thick films and it was found to increase with increase of temperature which confirms the semiconducting nature of the samples. Activation energies were calculated and it was found that, F/O molar ratio 1.7 has lowmore » E{sub AL} (Low temperature activation energy) and high E{sub AH} (High temperature activation energy) compared to other samples.« less
  • Morphologically stable, electrically conductive thin films are required for emerging harsh environment sensors that can operate at temperatures above 1000 °C. Zirconium diboride (ZrB{sub 2}) is an ultrahigh temperature ceramic with a melting temperature greater than 3200 °C and in bulk form has an electrical conductivity of ∼10{sup 7 }S/m. Thin films of varying Zr:B ratio have been deposited on sapphire substrates by electron beam coevaporation from elemental sources. An appropriate ratio of the elemental fluxes was determined to produce nearly stoichiometric ZrB{sub 2} thin films. Films deposited at ambient substrate temperatures are amorphous as measured by x-ray diffraction, while films grown atmore » 600 °C show textured ZrB{sub 2} nanocrystallites in an amorphous matrix, regardless of composition. When annealed in ultrahigh vacuum at 800 and 1000 °C for 1 h, nanocrystalline films show further grain growth with a 〈101{sup ¯}0〉 ZrB{sub 2} preferred orientation normal to the substrate, while the low nucleation rate in the amorphous films inhibits the formation of any substantial grains. Film conductivity ranges between 0.13 and 6.3 × 10{sup 5 }S/m, increasing with zirconium content and crystallite grain size. Besides grain growth, no micron-scale structural or morphological changes were observed with annealing, suggesting that ZrB{sub 2} films can act as stable electrodes in high temperature environments.« less