Surface Modification of Polydimethylsiloxane using Nd:YAG Laser

Nd:YAG 레이저를 이용한 PDMS 표면개질

  • 신성권 (인하대학교 전기공학과) ;
  • 송현승 (인하대학교 전기공학과) ;
  • 이천 (인하대학교 전기공학과)
  • Published : 2006.02.01


Nd:YAG($\lambda$=266 nm, pulse) laser beam was irradiated on the PDMS surface to improve its chemical reaction, wettability, adhesive property. The various surface modification methods of PDMS were already studied using oxygen plasma, ozone and corona discharge. The surface modification using laser has the advantage of the simple experiment that only directly irradiated laser beam on the PDMS surface in the air. After the laser treatment, the PDMS surface was investigated using a contact angle measuring instrument. The contact angle was decreased with a increase of the surface oxygen content. In conclusion, the wettability of PDMS surface was improved by the laser treatment without changing of its bulk characteristics.


  1. E. M Liston, L. Martinu, and M. R. Wertheimer, 'Plasma surface modification of polymers for improved adhesion: A critical review', J. Adhesion Sci. Technol., Vol. 7, p. 1091, 1993
  2. J. A. Folkes, 'Developments in laser surface modificaion and coating', Surface Coating Technol., Vol. 63, p. 65, 1994
  3. B. H. Youn, C. Y. Park, and C. S. Huh, 'Effect of surface charges in hydrophobicity and surface potential decay with various surface states of silicone rubber for outdoor insulator', J. of KIEEME(in Korean), Vol. 15, No.8, p. 678, 2002
  4. M. Y. Ahn, K. C. Lee, H. K. Lee, S. D. Lee, and C. Lee, 'Etching of the PDP barrier rib material using laser beam', J. of KIEEME(in Korean), Vol. 13, No. 6, p. 526, 2000
  5. V.-M. Graubver, R. Jordan, O. Nuyken, T. Lippert, M. Hauer, B. Schnyder, and A. Wokaun, 'Icubation and ablation behavior of poly (dirnethylsilxane) for 266 nm irracliation ' , Applied Surface Science, Vol. 8110, p. 1, 2002
  6. M. Ozdemir and H. Sadikoglu, 'A new and emerging technology: Laser-induced surface modifica- tion of polymers', Trends in Food Science & Technology, Vol. 9, p. 159, 1998
  7. C. Lee, D. Y. Kim, J. H. Kim, K. C. Lee, and C. S. Hui, 'Surface moclification of silicon by laser surface treatment: Improvement of adhesion and copper deposition', Journal of Electronic Materials, Vol. 34, No. 2, p. 132, 2005
  8. P. Laurens, M. Ould Bouali, F. Meducin, and B. Sadras, 'Characterization of polymer surfaces after excimer laser treatments below the ablation threshold', Applied Surface Science, Vol. 154-155, p. 211, 2000