Journal of Applied Science and Engineering

Published by Tamkang University Press


Impact Factor



Shang-Chi Tsai1 , Shu-Chun Yang This email address is being protected from spambots. You need JavaScript enabled to view it.1 and Shu-Mei Chang2

1Department of Physics, Tamkang University, Tamsui, Taiwan 251, R.O.C.
2Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei, Taiwan 106, R.O.C.


Received: March 9, 2005
Accepted: May 24, 2005
Publication Date: December 1, 2005

Download Citation: ||  


The Raman scattering spectra of fluorescent pendent polymer, poly-methyl stilbenemethacrylate (PMMS) with two different molecular weights under hydrostatic pressure up to 100 kbar are observed. We find that the Raman spectra shift to higher frequency with increasing pressure on both polymers. The shift rate is independent to their molecular weights. No phase change is observed in this pressure range.

Keywords: Raman Scattering, Conjugated Corrducting Polymer, Pressure


  1. [1] Chiang, C. K., Fincher, C. R., Park, Jr., Y. W., Heeger, A. J., Shirakawa, H., Louis, E. J., Gau, S. C. and MacDiarmid, A. G., Phys. Rev. Lett. Vol. 39, pp. 10981101 (1977).
  2. [2] Haisch, P., Winter, G., Hanack, M., Luer, L., Egelhaaf, H.-J. and Oelkrug, D., Adv. Mater. Vol. 9, p. 316 (1997).
  3. [3] Ko, C. W. and Lin, H. C., “Doped LED Polymers Containing Novel Luminescent Bispyridyl Compounds,” Thin Solid Films, Vol. 363, pp. 8185 (2000).
  4. [4] Nishino, H., Yu, G., Heeger, A .J., Chen, T. A. and Rieke, R. D., “Electroluminescence from Blend Films of Poly(3-hexylthiophene) and Poly(N-vinylcarbazole),” Synth. Metals, Vol. 68, pp. 243247 (1995).
  5. [5] Jiang, X., Liu, Y., Song, X. and Zhu, D., “Organic Light-emitting Diodes Made with Poly(N-vinylcarbazole) (PVK) and 8-hydroxyquinoline Aluminum(Alq3),” Synth. Metals, Vol. 87, pp.175178 (1997).
  6. [6] Brien, D. O., Bleyer, A., Lidzey, D. G., Bradley, D. D. C. and Tsutsui, T., “Efficient LEDs with a Conjugated Co-polymer as the Emissive Layer,” Optical Materials, Vol. 9, pp. 173177 (1998).
  7. [7] Sanetra, J., Armatys, P., Chrzaszcz, R., Pielichowski, J., Barta, P. and Niziol, S., “Light Emitting Diodes of the Multilayer Structures with Modified PVK Polymers,” Synth. Metals, Vol. 102, pp. 102 (1999).
  8. [8] Yutaka, O., Hirotake, K., Takumi, S., Hiroshi, U. and Katsumi, Y., “Enhancement of Electroluminescence Utilizing Confined Energy Transfer for Red Light Emission,” Thin Solid Films, Vol. 393, pp. 407411 (2001).
  9. [9] Chao, C. L. and Chen, S. A., “White Light Emission from Exciplex in a Bilayer Device with Two Blue Light-emitting polymers,” Appl. Phys. Lett., Vol. 73, pp. 426428 (1998).
  10. [10] Fann, C. H., M.S. Thesis, National Taipei University of Technology, June (2001).
  11. [11] Lee, K. Y., M.S. Thesis, National Taipei University of Technology, June (2003).
  12. [12] Chang, R., Hsu, J. H., Fann, W. S., Liang, K. K., Chang, C. H., Hayashi, M., Yu, J., Lin, S. H., Chang, E. C., Chuang, K. R. and Chen, S. A., “Experimental and Theoretical Investigations of Absorption and Emission Spectra of the Light-emitting Polymer MEH-PPV in Solution,” Chem. Phys. Lett., Vol. 317, pp. 142152 (2000).
  13. [13] Hawkridge, A. M. and Pemberton, J. E., “Model Aluminum-poly(p-phenylenevinylene) Interfaces Studied by Surface Raman Spectroscopy,” J. Am. Chem. Soc., Vol. 125, pp. 624625 (2003).
  14. [14] Martin, C. M., Guha, S., Chandrasekhar, M., Chandrasekhar, H. R., Guentner, R., Scanduicci de Freitas, P. and Scherf, U., “Hydrostatic Pressure Dependence of the Luminescence and Raman Frequencies in Polyfluorene,” Phys. Rev. B, Vol. 68, pp. 115203 (2003).
  15. [15] Chen, K. C., Raman-Briullin Scattering, Science Press, Peikei, China, (2001).
  16. [16] Guha, S., Graupner, W., Resel, R., Chandrasekhar, M., Chandrasekhar, H. R., Glaser, R. and Leising, G., “Planarity of Para Hexaphenyl,” Phys. Rev. Lett., Vol. 82, pp. 36253628 (1999).