The coupling between densification and optical heating in intense pulsed light sintering of silver nanoparticles

Shalu Bansal, Chih Hung Chang, Rajiv Malhotra

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Sintering of nanoparticles deposited onto rigid or flexible substrate is required for many devices that use continuous and patterned thin films. An emerging need in this area is to perform nanoparticle sintering under ambient conditions, at high speeds, and with throughput that is compatible with high speed nanoparticle deposition techniques. Intense Pulsed Light sintering (IPL) uses a high energy, broad area and broad spectrum beam of xenon lamp light to sinter metallic and nonmetallic nanoparticles. The capability of IPL to meet the above needs has been demonstrated. This paper experimentally examines temperature evolution and densification during IPL. It is shown, for the first time, that temperature rise and densification in IPL are related to each other. A coupled optical-thermal-sintering model on the nanoscale is developed, to understand this phenomenon. This model is used to show that the change in nanoscale shape of the nanoparticle ensemble due to sintering, reduces the optically induced heating as the densification proceeds, which provides a better explanation of experimental observations as compared to current models of IPL. The implications of this new understanding on the performance of IPL are also discussed.

Original languageEnglish (US)
Title of host publicationProcessing
PublisherAmerican Society of Mechanical Engineers
Volume1
ISBN (Electronic)9780791849897
DOIs
StatePublished - Jan 1 2016
Externally publishedYes
EventASME 2016 11th International Manufacturing Science and Engineering Conference, MSEC 2016 - Blacksburg, United States
Duration: Jun 27 2016Jul 1 2016

Other

OtherASME 2016 11th International Manufacturing Science and Engineering Conference, MSEC 2016
CountryUnited States
CityBlacksburg
Period6/27/167/1/16

Fingerprint

Densification
Silver
Sintering
Nanoparticles
Heating
Xenon
Electric lamps
Throughput
Thin films
Temperature
Substrates

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering

Cite this

Bansal, Shalu ; Chang, Chih Hung ; Malhotra, Rajiv. / The coupling between densification and optical heating in intense pulsed light sintering of silver nanoparticles. Processing. Vol. 1 American Society of Mechanical Engineers, 2016.
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Bansal, S, Chang, CH & Malhotra, R 2016, The coupling between densification and optical heating in intense pulsed light sintering of silver nanoparticles. in Processing. vol. 1, American Society of Mechanical Engineers, ASME 2016 11th International Manufacturing Science and Engineering Conference, MSEC 2016, Blacksburg, United States, 6/27/16. https://doi.org/10.1115/MSEC20168693

The coupling between densification and optical heating in intense pulsed light sintering of silver nanoparticles. / Bansal, Shalu; Chang, Chih Hung; Malhotra, Rajiv.

Processing. Vol. 1 American Society of Mechanical Engineers, 2016.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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