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The Influence of Laser Sintering Modes on the Conductivity and Microstructure of Silver Nanoparticle Arrays Formed by Dry Aerosol Printing

1
Department of Physical and Quantum Electronics, Moscow Institute of Physics and Technology (National Research University), Dolgoprudny 141701, Russia
2
JSC ESTO Co., Zelenograd 124460, Russia
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(1), 246; https://doi.org/10.3390/app10010246
Received: 10 November 2019 / Revised: 10 December 2019 / Accepted: 25 December 2019 / Published: 28 December 2019
(This article belongs to the Section Nanotechnology and Applied Nanosciences)
The demand for the development of local laser sintering of nanoparticle arrays is explained by the expanding needs for printed electronics for functional microstructure formation, on heat-sensitive substrates in particular. This work is based on the research into the sintering of arrays of silver nanoparticles synthesized in a spark discharge and deposited on a substrate by focused aerosol flow. The sintering was done by continuous and pulsed lasers with wavelengths 527, 980 and 1054 nm. Sintered samples were studied by measuring the resistivity, cross-section profile area and microstructure features. The highest average conductivity, equal to the half of the bulk silver conductivity, was achieved when sintering by continuous radiation with a wavelength 980 nm. The results showed that when using pulsed radiation the direct heating of nanoparticles in the sample surface layer dominates with the formation of a pore-free conductive layer of around 0.5 μm thick and crystallite of 70–80 nm size. It was found that laser sintering by radiation with a wavelength 527 nm required an order of magnitude lower specific energy costs as compared to the longwave laser radiation. The high energy efficiency of laser sintering is explained by special conditions for radiation absorption at plasmon resonance. View Full-Text
Keywords: aerosol nanoparticles; printing; microstructure; sintering; laser radiation; silver; conductivity aerosol nanoparticles; printing; microstructure; sintering; laser radiation; silver; conductivity
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MDPI and ACS Style

Khabarov, K.; Kornyushin, D.; Masnaviev, B.; Tuzhilin, D.; Saprykin, D.; Efimov, A.; Ivanov, V. The Influence of Laser Sintering Modes on the Conductivity and Microstructure of Silver Nanoparticle Arrays Formed by Dry Aerosol Printing. Appl. Sci. 2020, 10, 246. https://doi.org/10.3390/app10010246

AMA Style

Khabarov K, Kornyushin D, Masnaviev B, Tuzhilin D, Saprykin D, Efimov A, Ivanov V. The Influence of Laser Sintering Modes on the Conductivity and Microstructure of Silver Nanoparticle Arrays Formed by Dry Aerosol Printing. Applied Sciences. 2020; 10(1):246. https://doi.org/10.3390/app10010246

Chicago/Turabian Style

Khabarov, Kirill; Kornyushin, Denis; Masnaviev, Bulat; Tuzhilin, Dmitry; Saprykin, Dmitry; Efimov, Alexey; Ivanov, Victor. 2020. "The Influence of Laser Sintering Modes on the Conductivity and Microstructure of Silver Nanoparticle Arrays Formed by Dry Aerosol Printing" Appl. Sci. 10, no. 1: 246. https://doi.org/10.3390/app10010246

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