Next generation non-vacuum, maskless, low temperature nanoparticle ink laser digital direct metal patterning for a large area flexible electronics.

Flexible electronics opened a new class of future electronics. The foldable, light and durable nature of flexible electronics allows vast flexibility in applications such as display, energy devices and mobile electronics. Even though conventional electronics fabrication methods are well developed fo...

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Main Authors: Junyeob Yeo, Sukjoon Hong, Daehoo Lee, Nico Hotz, Ming-Tsang Lee, Costas P Grigoropoulos, Seung Hwan Ko
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3416833?pdf=render
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author Junyeob Yeo
Sukjoon Hong
Daehoo Lee
Nico Hotz
Ming-Tsang Lee
Costas P Grigoropoulos
Seung Hwan Ko
Seung Hwan Ko
author_facet Junyeob Yeo
Sukjoon Hong
Daehoo Lee
Nico Hotz
Ming-Tsang Lee
Costas P Grigoropoulos
Seung Hwan Ko
Seung Hwan Ko
author_sort Junyeob Yeo
collection DOAJ
description Flexible electronics opened a new class of future electronics. The foldable, light and durable nature of flexible electronics allows vast flexibility in applications such as display, energy devices and mobile electronics. Even though conventional electronics fabrication methods are well developed for rigid substrates, direct application or slight modification of conventional processes for flexible electronics fabrication cannot work. The future flexible electronics fabrication requires totally new low-temperature process development optimized for flexible substrate and it should be based on new material too. Here we present a simple approach to developing a flexible electronics fabrication without using conventional vacuum deposition and photolithography. We found that direct metal patterning based on laser-induced local melting of metal nanoparticle ink is a promising low-temperature alternative to vacuum deposition- and photolithography-based conventional metal patterning processes. The "digital" nature of the proposed direct metal patterning process removes the need for expensive photomask and allows easy design modification and short turnaround time. This new process can be extremely useful for current small-volume, large-variety manufacturing paradigms. Besides, simple, scalable, fast and low-temperature processes can lead to cost-effective fabrication methods on a large-area polymer substrate. The developed process was successfully applied to demonstrate high-quality Ag patterning (2.1 µΩ·cm) and high-performance flexible organic field effect transistor arrays.
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spelling doaj.art-1f14e11830d74748bfcd4938f14ef9142022-12-21T23:54:48ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-0178e4231510.1371/journal.pone.0042315Next generation non-vacuum, maskless, low temperature nanoparticle ink laser digital direct metal patterning for a large area flexible electronics.Junyeob YeoSukjoon HongDaehoo LeeNico HotzMing-Tsang LeeCostas P GrigoropoulosSeung Hwan KoSeung Hwan KoFlexible electronics opened a new class of future electronics. The foldable, light and durable nature of flexible electronics allows vast flexibility in applications such as display, energy devices and mobile electronics. Even though conventional electronics fabrication methods are well developed for rigid substrates, direct application or slight modification of conventional processes for flexible electronics fabrication cannot work. The future flexible electronics fabrication requires totally new low-temperature process development optimized for flexible substrate and it should be based on new material too. Here we present a simple approach to developing a flexible electronics fabrication without using conventional vacuum deposition and photolithography. We found that direct metal patterning based on laser-induced local melting of metal nanoparticle ink is a promising low-temperature alternative to vacuum deposition- and photolithography-based conventional metal patterning processes. The "digital" nature of the proposed direct metal patterning process removes the need for expensive photomask and allows easy design modification and short turnaround time. This new process can be extremely useful for current small-volume, large-variety manufacturing paradigms. Besides, simple, scalable, fast and low-temperature processes can lead to cost-effective fabrication methods on a large-area polymer substrate. The developed process was successfully applied to demonstrate high-quality Ag patterning (2.1 µΩ·cm) and high-performance flexible organic field effect transistor arrays.http://europepmc.org/articles/PMC3416833?pdf=render
spellingShingle Junyeob Yeo
Sukjoon Hong
Daehoo Lee
Nico Hotz
Ming-Tsang Lee
Costas P Grigoropoulos
Seung Hwan Ko
Seung Hwan Ko
Next generation non-vacuum, maskless, low temperature nanoparticle ink laser digital direct metal patterning for a large area flexible electronics.
PLoS ONE
title Next generation non-vacuum, maskless, low temperature nanoparticle ink laser digital direct metal patterning for a large area flexible electronics.
title_full Next generation non-vacuum, maskless, low temperature nanoparticle ink laser digital direct metal patterning for a large area flexible electronics.
title_fullStr Next generation non-vacuum, maskless, low temperature nanoparticle ink laser digital direct metal patterning for a large area flexible electronics.
title_full_unstemmed Next generation non-vacuum, maskless, low temperature nanoparticle ink laser digital direct metal patterning for a large area flexible electronics.
title_short Next generation non-vacuum, maskless, low temperature nanoparticle ink laser digital direct metal patterning for a large area flexible electronics.
title_sort next generation non vacuum maskless low temperature nanoparticle ink laser digital direct metal patterning for a large area flexible electronics
url http://europepmc.org/articles/PMC3416833?pdf=render
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