Next Article in Journal
Enhanced Sensitivity of MoTe2 Chemical Sensor through Light Illumination
Next Article in Special Issue
Rapid and Effective Electrical Conductivity Improvement of the Ag NW-Based Conductor by Using the Laser-Induced Nano-Welding Process
Previous Article in Journal
A Perspective on the Rise of Optofluidics and the Future
Previous Article in Special Issue
Opportunities and Challenges in Flexible and Stretchable Electronics: A Panel Discussion at ISFSE2016
Open AccessArticle

Large-Area Compatible Laser Sintering Schemes with a Spatially Extended Focused Beam

1
Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea
2
Department of Mechanical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan Gyeonggi-do 15588, Korea
3
Department of Mechanical Engineering, Ajou University, San 5, Woncheon-Dong, Yeongtong-Gu, Suwon 16499, Korea
4
Novel Applied Nano Optics (NANO) Lab, Department of Physics, Kyungpook National University, 80 Daehak-ro, Bukgu, Daegu 41566, Korea
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Zhigang Wu
Micromachines 2017, 8(5), 153; https://doi.org/10.3390/mi8050153
Received: 3 April 2017 / Revised: 30 April 2017 / Accepted: 3 May 2017 / Published: 11 May 2017
(This article belongs to the Special Issue Flexible and Stretchable Electronics)
Selective laser sintering enables the facile production of metal nanoparticle-based conductive layers on flexible substrates, but its application towards large-area electronics has remained questionable due to the limited throughput of the laser process that originates from the direct writing nature. In this study, modified optical schemes are introduced for the fabrication of (1) a densely patterned conductive layer and (2) a thin-film conductive layer without any patterns. In detail, a focusing lens is substituted by a micro lens array or a cylindrical lens to generate multiple beamlets or an extended focal line. The modified optical settings are found to be advantageous for the creation of repetitive conducting patterns or areal sintering of the silver nanoparticle ink layer. It is further confirmed that these optical schemes are equally compatible with plastic substrates for its application towards large-area flexible electronics. View Full-Text
Keywords: laser sintering; metal nanoparticle; micro lens array; cylindrical lens; flexible electrode laser sintering; metal nanoparticle; micro lens array; cylindrical lens; flexible electrode
Show Figures

Figure 1

MDPI and ACS Style

Lee, H.; Kwon, J.; Shin, W.S.; Kim, H.R.; Shin, J.; Cho, H.; Han, S.; Yeo, J.; Hong, S. Large-Area Compatible Laser Sintering Schemes with a Spatially Extended Focused Beam. Micromachines 2017, 8, 153.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop