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Micromachines 2015, 6(1), 96-109; doi:10.3390/mi6010096

Sub-Micrometer Size Structure Fabrication Using a Conductive Polymer

1
Faculty of Engineering, Tokyo Polytechnic University, 1583 Iiyama Atsugi, Kanagawa 243-0297, Japan
2
Graduation School of Engineering, Tokyo Polytechnic University, 1583 Iiyama Atsugi, Kanagawa 243-0297, Japan
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Cheng Luo
Received: 16 October 2014 / Accepted: 24 December 2014 / Published: 29 December 2014
(This article belongs to the Special Issue Micro/Nano Fabrication)
View Full-Text   |   Download PDF [2747 KB, uploaded 29 December 2014]   |  

Abstract

Stereolithography that uses a femtosecond laser was employed as a method for multiphoton-sensitized polymerization. We studied the stereolithography method, which produces duplicate solid shapes corresponding to the trajectory of the laser focus point and can be used to build a three-dimensional (3D) structure using a conductive polymer. To achieve this, we first considered a suitable polymerization condition for line stereolithography. However, this introduced a problem of irregular polymerization. To overcome this, we constructed a support in the polymerized part using a protein material. This method can stabilize polymerization, but it is not suited for building 3D shapes. Therefore, we considered whether heat accumulation causes the irregular polymerization; consequently, the reduction method of the repetition rate of the femtosecond laser was used to reduce the heating process. This method enabled stabilization and building of a 3D shape using photo-polymerization of a conductive polymer. View Full-Text
Keywords: stereolithography; conductive polymer; multi-photon; femto second laser; protein; repetition rate stereolithography; conductive polymer; multi-photon; femto second laser; protein; repetition rate
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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. (CC BY 4.0).

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Sone, J.; Yamada, K.; Asami, A.; Chen, J. Sub-Micrometer Size Structure Fabrication Using a Conductive Polymer. Micromachines 2015, 6, 96-109.

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