Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Fabrication method of PDMS microlensesusing water-based molding method

표면개질에 의한 물방울 접촉각 변화를 이용하여 제작된 PDMS 마이크로 렌즈

  • Kim, Hong-Ki (Department of Electronic Engineering, Sogang University) ;
  • Yun, Kwang-Seok (Department of Electronic Engineering and Interdisciplinary Program of Integrated Biotechnology, Sogang University)
  • 김홍기 (서강대학교 전자공학과) ;
  • 윤광석 (서강대학교 전자공학과/바이오융합기술 협동과정)
  • Published : 2008.09.30
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Abstract

This paper reports a new fabrication method of polydimethylsiloxane (PDMS) microlenses with various curvatures by using a water-based mold. The hydrophobic surface of Polypropylene (PP) substrate was modified by corona discharge using tesla coil to have hydrophilic surface. Then hydrophilic surface of PP substrate takes hydrophobic recovery to have various contact angles from less than $25^{\circ}$ to about $84^{\circ}$. By using the water droplets with various contact angles as replica molds for PDMS process, we could obtain PDMS microlenses with various curvatures.

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References

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Cited by

  1. Fabrication of PDMS Lens Using Photolithography and Water Droplet Mold vol.22, pp.5, 2013, https://doi.org/10.5369/JSST.2013.22.5.352