Nanoparticle sintering methods and applications for printed electronics

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.advisor Seppä, Heikki, Dr., VTT Allen, Mark Lee 2012-08-31T07:41:56Z 2012-08-31T07:41:56Z 2011
dc.identifier.isbn 978-952-60-4278-7 (PDF)
dc.identifier.isbn 978-952-60-4277-0 (printed)
dc.identifier.issn 1799-4942
dc.description.abstract Printed electronics refers to the technologies of fabricating electronic and optoelectronic devices by traditional printing methods. Especially roll-to-roll mass-printing is foreseen to enable low-cost devices on flexible substrates. Direct-write patterning methods, such as inkjet printing, inspire potential for cost-savings in R&D prototyping and customization. Various organic and inorganic materials can be printed in liquid form and subsequently cured to obtain desired electric functionalities. For example, metals can be printed as nanoparticle dispersions and sintered to obtain high conductivity. In this Thesis, the applicability of silver nanoparticle inks for printed wiring, interconnections, memories, antennas, and wireless resonant tags, is investigated. The Thesis work involves modeling, simulating, fabricating, measuring and analyzing the prototype structures. Novel methods for sintering nanoparticles are developed. The rapid electrical sintering method, performed by applying voltage over the printed structure, is shown to provide a conductivity increase of more than four orders of magnitude in just milliseconds with the resulting conductivity reaching above 50 % that of bulk silver. The method is further developed to allow for a more practical adaption via contactless coupling at microwave frequencies. A room-temperature sintering method based on the chemical removal of the nanoparticle stabilizing ligand through interaction between the ink and the coating layer of the printing substrate is also presented. The substrate-facilitated sintering method is shown to enable in situ component attachment to printed structures. Inkjet printed RFID antennas and a wireless RF resonant tag fabricated by a combination of roll-to-roll gravure and inkjet printing are shown to provide reading distances sufficient for many practical applications. A novel approach for contactless read-out of printed memory is introduced and demonstrated for a memory structure inkjet printed using silver nanoparticle ink. The information content of the memory is stored in memory bits selectively programmed using the rapid electrical sintering method. en
dc.format.extent Verkkokirja (4771 KB, 93 s.)
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Aalto University en
dc.relation.ispartofseries Aalto University publication series DOCTORAL DISSERTATIONS , 81/2011 en
dc.relation.haspart [Publication 1]: Mark L. Allen, Mikko Aronniemi, Tomi Mattila, Ari Alastalo, Kimmo Ojanperä, Mika Suhonen, and Heikki Seppä. 2008. Electrical sintering of nanoparticle structures. Nanotechnology, volume 19, number 17, 175201, 4 pages. en
dc.relation.haspart [Publication 2]: Ari T. Alastalo, Tomi Mattila, Mark L. Allen, Mikko J. Aronniemi, Jaakko H. Leppäniemi, Kimmo A. Ojanperä, Mika P. Suhonen, and Heikki Seppä. 2008. Rapid electrical sintering of nanoparticle structures. In: Proceedings of the 2008 MRS Fall Meeting & Exhibit: Symposium F – Low-Cost Solution-Based Deposition of Inorganic Films for Electronic/Photonic Devices. Boston, MA, USA. 1-5 December 2008. Materials Research Society. Materials Research Society Symposium Proceedings, volume 1113, 1113-F02-07, 6 pages. en
dc.relation.haspart [Publication 3]: Mark Allen, Ari Alastalo, Mika Suhonen, Tomi Mattila, Jaakko Leppäniemi, and Heikki Seppä. 2011. Contactless electrical sintering of silver nanoparticles on flexible substrates. IEEE Transactions on Microwave Theory and Techniques, volume 59, number 5, pages 1419-1429. en
dc.relation.haspart [Publication 4]: Mark Allen, Jaakko Leppäniemi, Marja Vilkman, Ari Alastalo, and Tomi Mattila. 2010. Substrate-facilitated nanoparticle sintering and component interconnection procedure. Nanotechnology, volume 21, number 47, 475204, 6 pages. en
dc.relation.haspart [Publication 5]: Mark L. Allen, Kaarle Jaakkola, Kaj Nummila, and Heikki Seppä. 2009. Applicability of metallic nanoparticle inks in RFID applications. IEEE Transactions on Components and Packaging Technologies, volume 32, number 2, pages 325-332. en
dc.relation.haspart [Publication 6]: Mark Allen, Mikko Aronniemi, Tomi Mattila, Panu Helistö, Hannu Sipola, Anssi Rautiainen, Jaakko Leppäniemi, Ari Alastalo, Raimo Korhonen, and Heikki Seppä. 2011. Contactless read-out of printed memory. Microelectronic Engineering, volume 88, number 9, pages 2941-2945. en
dc.relation.haspart [Publication 7]: Mark Allen, Changwoo Lee, Byungjoon Ahn, Terho Kololuoma, Keehyun Shin, and Sunglim Ko. R2R gravure and inkjet printed RF resonant tag. Microelectronic Engineering, 7 pages, accepted for publication. en
dc.subject.other Electrical engineering
dc.title Nanoparticle sintering methods and applications for printed electronics en
dc.type G5 Artikkeliväitöskirja fi Sähkötekniikan korkeakoulu fi
dc.contributor.department Radiotieteen ja -tekniikan laitos fi
dc.contributor.department Department of Radio Science and Engineering en
dc.subject.keyword printed electronics en
dc.subject.keyword rapid electrical sintering en
dc.subject.keyword substrate-facilitated sintering en
dc.subject.keyword nanoparticle ink en
dc.subject.keyword inkjet printing en
dc.subject.keyword gravure printing en
dc.subject.keyword radio frequency identification en
dc.subject.keyword printed memory en
dc.subject.keyword interconnection en
dc.subject.keyword contactless read-out en
dc.identifier.urn URN:ISBN:978-952-60-4278-7
dc.type.dcmitype text en
dc.type.ontasot Väitöskirja (artikkeli) fi
dc.type.ontasot Doctoral dissertation (article-based) en
dc.contributor.supervisor Nikoskinen, Keijo, Prof.

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