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The European Physical Journal D

, Volume 54, Issue 2, pp 325–328 | Cite as

Study of optical properties and molecular structure of plasma polymerized diethylene glycol dimethyl ether

  • M. A. AlgattiEmail author
  • R. P. Mota
  • R. Y. Honda
  • M. E. Kayama
  • K. G. Kostov
  • R. S. Fernandes
  • T. C.A.M. Azevedo
  • N. C. Cruz
Topical issue: 23rd Symposium on Plasma Physics and Technology

Abstract

This paper deals with plasma polymerization processes of diethylene glycol dimethyl ether. Plasmas were produced at 150 mtorr in the range of 10 W to 40 W of RF power. Films were grown on silicon and quartz substrates. Molecular structure of plasma polymerized films and their optical properties were analyzed by Fourier transform infrared spectroscopy (FTIR) and ultraviolet-visible spectroscopy. The IR spectra show C–H stretching at 3000–2900 cm-1, C=O stretching at 1730–1650 cm-1, C–H bending at 1440–1380 cm-1, C–O and C–O–C stretching at 1200–1000 cm-1. The concentrations of C–H, C–O and C–O–C were investigated for different values of RF power. It can be seen that the C–H concentration increases from 0.55 to 1.0 au (arbitrary unit) with the increase of RF power from 10 to 40 W. The concentration of C–O and C–O–C decreases from 1.0 to 0.5 au in the same range of RF power. The refraction index increased from 1.47 to 1.61 with the increase of RF power. The optical gap calculated from absorption coefficient decreased from 5.15 to 3.35 eV with the increase of power. Due to its optical and hydrophilic characteristics these films can be applied, for instance, as glass lens coatings for ophthalmic applications.

PACS

52.80.Pi High-frequency and RF discharges 52.77.-j Plasma applications 78.66.-w Optical properties of specific thin films 78.20.-e Optical properties of bulk materials and thin films 

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References

  1. A. Bogaerts, E. Neyts, R. Gijbels, J. van der Mullen, Spectrochim. Acta B 57, 609 (2002) Google Scholar
  2. P.K. Chu, J.Y. Chen, L.P. Wang, N. Huang, Mater. Sci. Eng. Rep. 36, 143 (2002) Google Scholar
  3. Handbook of Advanced Plasma Processing Techniques, edited by R.J. Shul, S.J. Pearton (Springer, Berlin, 2000) Google Scholar
  4. N. Inagaki, Plasma Surface Modification and Plasma Polymerization (Technomic Publishing Company, Inc., USA, 1996) Google Scholar
  5. H. Yasuda, Plasma Polymerization (Academic Press, Inc., USA, 1985) Google Scholar
  6. J.R. Roth, Industrial Plasma Engineering: Principles (IOP Publishing, UK, 1995), Vol. 1 Google Scholar
  7. J.R. Roth, Industrial Plasma Engineering: Applications (IOP Publishing, UK, 2001), Vol. 2 Google Scholar
  8. Plasma Deposition, Treatment and Etching of Polymers, edited by R. d’Agostino (Academic Press, Inc., USA, 1990) Google Scholar
  9. Plasma Processing of Polymers, NATO ASI series E: Applied Sciences, edited by R. d’Agostino, P. Favia, F. Fracassi (Kluwer Academic Publishers, Dordrecht, The Netherlands, 1997), Vol. 346 Google Scholar
  10. N.A. Alcantar, E.S. Aydil, J.N. Israelachvili, J. Biomed. Mater. Res. 51, 343 (2000) Google Scholar
  11. P. Favia, R. d’Agostino, Surf. Coat. Technol. 98, 1102 (1998) Google Scholar
  12. S.K. Hendricks, K. Kwok, M. Shen, T.A. Horbett, B.D. Ratner, J.D. Bryers, J. Biomed. Mater. Res. 50, 160 (2000) Google Scholar
  13. M.K. Kim, I.S. Park, H.D. Park, W.R. Wee, J.H. Lee, K.D. Park, S.H. Kim, Y.H. Kim, J. Cataract Refract. Surg. 27, 766 (2001) Google Scholar
  14. G. Cicala, M. Creatore, P. Favia, R. Lamendola, R. d’Agostino, Appl. Phys. Lett. 75, 37 (1999) Google Scholar
  15. C. Oehr, M. Müller, B. Elkin, D. Hegemann, U. Vohrer, Surf. Coat. Technol. 116–119, 25 (1999) Google Scholar
  16. H. Biederman, D. Slavínská, Surf. Coat. Technol. 125, 371 (2000) Google Scholar
  17. A. Lanford, J.M. Rand, J. Appl. Phys. 49, 2473 (1978) Google Scholar
  18. E. Durrant, R.P. Mota, M.B. Moraes, J. Appl. Phys. 71, 448 (1992) Google Scholar
  19. J.L. Cisneros, G.B. Rego, M. Tomyiama, S. Bilac, J.M. Gonçalves, A.E. Rodriguez, Z.P. Argüello, Thin Solid Films 100, 155 (1983) Google Scholar
  20. G.D. Cody, in Semiconductors and Semimetals, edited by R.K.W. Willardson, A.C. Beer (Academic Press, Inc., USA, 1984), Vol. 21B, Chap. 2 Google Scholar
  21. F.W. Smith, J. Appl. Phys. 55, 764 (1984) Google Scholar
  22. E.C. Freeman, W. Paul, Phys. Rev. B 20, 716 (1979) Google Scholar
  23. J. Tauc, in Optical Properties of Solids, edited by F. Abeles (North Holland, Amsterdam, 1972), Chap. 5 Google Scholar
  24. G. Strobl, The Physics of Polymers: Concepts for Understanding Their Structures and Behavior, 3rd edn. (Springer, Berlin, 2007) Google Scholar

Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • M. A. Algatti
    • 1
    Email author
  • R. P. Mota
    • 1
  • R. Y. Honda
    • 1
  • M. E. Kayama
    • 1
  • K. G. Kostov
    • 1
  • R. S. Fernandes
    • 1
  • T. C.A.M. Azevedo
    • 1
  • N. C. Cruz
    • 2
  1. 1.Departamento de Física e QuímicaUniversidade Estadual Paulista, Campus de Guaratinguetá, Faculdade de EngenhariaGuaratinguetáBrazil
  2. 2.Universidade Estadual Paulista, Campus de SorocabaSorocabaBrazil

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