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Journal of Nanomaterials
Volume 2015 (2015), Article ID 723256, 6 pages
Research Article

Soft-Contact Printing of Nanoparticle-Based Nanoink for Functional Nanopatterns

1Division of Energy Systems Research, Ajou University, Suwon 443-749, Republic of Korea
2Department of Organic and Nano System Engineering, Konkuk University, Seoul 143-701, Republic of Korea
3School of Electronic and Electrical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
4Department of Mechanical Engineering, Gachon University, Gyeonggi-do 461-701, Republic of Korea

Received 22 May 2015; Accepted 2 July 2015

Academic Editor: Junyeob Yeo

Copyright © 2015 Ujwal Kumar Thakur et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A simple solution-based soft-contact printing process that could easily generate sub-100 nm nanopatterns having negligible thickness of residual layer was developed. In this process, the thickness of residual layer could be significantly decreased by controlling the concentration of nanoink or by utilizing nanoink having high curing point. Furthermore, the additional sonication process, introduced to the soft-printing process, could facilitate further decreasing the thickness of residual layer. Consequently, ZnO nanostructures having negligible residual layer were successfully fabricated, and Ag nanostructures having 63.1% average transmittance were demonstrated. We expect that our printing process can be utilized to fabricate semitransparent conductor for various optoelectronic devices by optimizing the dimensional parameters of nanopatterns.