On the self-damping nature of densification in photonic sintering of nanoparticles Public Deposited

http://ir.library.oregonstate.edu/concern/articles/td96k4561

This is the publisher’s final pdf. The published article is copyrighted by the author(s) and published by Nature Publishing Group. The published article can be found at:  http://www.nature.com/articles/srep14845

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Sintering of nanoparticle inks over large area-substrates is a key enabler for scalable fabrication of patterned and continuous films, with multiple emerging applications. The high speed and ambient condition operation of photonic sintering has elicited significant interest for this purpose. In this work, we experimentally characterize the temperature evolution and densification in photonic sintering of silver nanoparticle inks, as a function of nanoparticle size. It is shown that smaller nanoparticles result in faster densification, with lower temperatures during sintering, as compared to larger nanoparticles. Further, high densification can be achieved even without nanoparticle melting. Electromagnetic Finite Element Analysis of photonic heating is coupled to an analytical sintering model, to examine the role of interparticle neck growth in photonic sintering. It is shown that photonic sintering is an inherently self-damping process, i.e., the progress of densification reduces the magnitude of subsequent photonic heating even before full density is reached. By accounting for this phenomenon, the developed coupled model better captures the experimentally observed sintering temperature and densification as compared to conventional photonic sintering models. Further, this model is used to uncover the reason behind the experimentally observed increase in densification with increasing weight ratio of smaller to larger nanoparticles.
Resource Type
DOI
Date Available
Date Issued
Citation
  • MacNeill, W., Choi, C. H., Chang, C. H., & Malhotra, R. (2015). On the self-damping nature of densification in photonic sintering of nanoparticles. Scientific Reports, 5, 14845. doi:10.1038/srep14845
Series
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2015-10-29T14:06:16Z (GMT). No. of bitstreams: 3 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) MacNeillWilliamMIMESelfDampingNature.pdf: 2166288 bytes, checksum: d2368190a4a99bf81fb397e476b2be75 (MD5) MacNeillWilliamMIMESelfDampingNatureSuppInfoFigS1-S9.pdf: 1383775 bytes, checksum: c4abcdad6adbffe3813bb34f87d125b0 (MD5) Previous issue date: 2015-10-07
  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2015-10-29T14:04:23Z No. of bitstreams: 3 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) MacNeillWilliamMIMESelfDampingNature.pdf: 2166288 bytes, checksum: d2368190a4a99bf81fb397e476b2be75 (MD5) MacNeillWilliamMIMESelfDampingNatureSuppInfoFigS1-S9.pdf: 1383775 bytes, checksum: c4abcdad6adbffe3813bb34f87d125b0 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2015-10-29T14:06:16Z (GMT) No. of bitstreams: 3 license_rdf: 1370 bytes, checksum: cd1af5ab51bcc7a5280cf305303530e9 (MD5) MacNeillWilliamMIMESelfDampingNature.pdf: 2166288 bytes, checksum: d2368190a4a99bf81fb397e476b2be75 (MD5) MacNeillWilliamMIMESelfDampingNatureSuppInfoFigS1-S9.pdf: 1383775 bytes, checksum: c4abcdad6adbffe3813bb34f87d125b0 (MD5)

Relationships

In Administrative Set:
Last modified: 07/27/2017 Default
Citations:

EndNote | Zotero | Mendeley

Items