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Journal of Polymer Research

, Volume 14, Issue 4, pp 283–290 | Cite as

Structural, electrical and optical properties of pure and NaLaF4 doped PEO polymer electrolyte films

  • V. M. Mohan
  • V. Raja
  • P. Balaji Bhargav
  • A. K. Sharma
  • V. V. R. Narasimha Rao
Short Communication

Abstract

A Sodium ion conducting polymer electrolyte based on Polyethylene oxide (PEO) complexed with Sodium lanthanum tetra fluoride (NaLaF4) was prepared using solution cast technique. The complexation of the salt with PEO was confirmed by X-ray diffraction (XRD) and Fourier Transform Infrared spectroscopic (FTIR) studies. Differential Scanning Calorimetry (DSC) is carried out to determine the melting temperature of these electrolyte films. Electrical conductivity was measured in the temperature range 300–370 K as a function of dopant concentration as well as temperature. Optical absorption studies were made in the wavelength range 200–600 nm on pure and NaLaF4 doped PEO film. The absorption edge was observed at 4.62 eV for undoped PEO while it ranged from 3.16 to 3.5 eV for NaLaF4 doped films. The direct band gaps for undoped and NaLaF4 doped PEO films were found to be, respectively, 4.54 and 3.44, 3.24 and 3.12 eV while the indirect band gaps were 4.43 and 3.25, 3.05 and 2.9 eV, respectively. It was found that the energy gaps and band edge values shifted to lower energies on doping with NaLaF4 salt.

Keywords

XRD FTIR DSC Electrical conductivity Optical absorption NaLaF4-doped polymer electrolyte films 

References

  1. 1.
    Ulanski J, Polanowski P, Traiez A, Hofmann M, Dormann E, Laukhina E (1998) J Synth Methods 94:23CrossRefGoogle Scholar
  2. 2.
    Jin-Kyung Lee, Yong-Ji Lee, Won-Seok Chae, Yun-Mo Sung (2006) J Electroceram 17:941CrossRefGoogle Scholar
  3. 3.
    Umadevi C, Sharma AK, Rao VVRN (2002) Mater Lett 56:167Google Scholar
  4. 4.
    Sundar M, Selladurai S (2006) J Ionics 12:281CrossRefGoogle Scholar
  5. 5.
    Aleshin AN, Mironkov NB, Suvarov AV, Conklin JA, Su JM, Kaner RB, (1996)Phys Rev, B, Condens Matter 54:11638Google Scholar
  6. 6.
    Yahya al-Ramadin (2000) Opt Mater 14:287CrossRefGoogle Scholar
  7. 7.
    Saq’an SA, Ayesh AS, Zihlif A (2004) Opt Mater 24:629CrossRefGoogle Scholar
  8. 8.
    Armand MB (1987) In: Mac callum JR, Vincent CA (eds) Polymer electrolyte reviews, Elsevier, LondonGoogle Scholar
  9. 9.
    Shareefuddin MD, Chary MN (1994) Solid-State Ionics 69:37CrossRefGoogle Scholar
  10. 10.
    Shareefuddin MD, Reddy KN, Chary MN (1994) Mater Sci Eng, B 22:37CrossRefGoogle Scholar
  11. 11.
    Madhu mohan V, Raja V, .Sharma AK, Narasimha Rao VVR (2005) Mater Chem Phys 94:177CrossRefGoogle Scholar
  12. 12.
    Jaipal Reddy M, Peter Chu P, Subba Rao UV (2006) J.Power Sources 158(1):614CrossRefGoogle Scholar
  13. 13.
    Anantha PS, Hariharan K (2005) J Solid State Ionics 176:155CrossRefGoogle Scholar
  14. 14.
    Wen SJ, Richardson TJ, Ghantous DI, Striebel KA, Ross PN, Cairns EJ (1996) J Electroanal Chem 408:113CrossRefGoogle Scholar
  15. 15.
    Papke BL, Ratner MA, Shriver DF (1982) J.Electrochem Soc 129:1434CrossRefGoogle Scholar
  16. 16.
    Shin JH, Kim KW, Ahn HJ, Ahn JH (2002) J Mater Sci Eng, B 95:148CrossRefGoogle Scholar
  17. 17.
    Armand M (1983) Solid State Ionics 9 & 10:745CrossRefGoogle Scholar
  18. 18.
    Hou WH, Chen CY, Wang CC (2004) J. Solid State Ionics 166:397CrossRefGoogle Scholar
  19. 19.
    Yan-Jie Wang, Pan Yi, Dukjoon KIM (2006) J Power Sources 159(1):692Google Scholar
  20. 20.
    Devendrappa H, Subba rao UV, Ambika Prasad MVN (2006) J Power Sources 155(2):368Google Scholar
  21. 21.
    Narasimha Rao VVR, Mahendar T, Subba rao B (1988) J Non-cryst Solid 104(1):224CrossRefGoogle Scholar
  22. 22.
    Hodge Edward GH, Simon GP (1996) J Polymer 37:1371CrossRefGoogle Scholar
  23. 23.
    Davis DS, Shalliday TS (1960) Phys Rev 118:1020CrossRefGoogle Scholar
  24. 24.
    Thutupalli GM, Tomlin SG (1976) J Phys, D, Appl Phys 9: 1639CrossRefGoogle Scholar
  25. 25.
    Subba Reddy Ch, Sharma AK, Narasimha Rao VVR (2006) 47:1318Google Scholar
  26. 26.
    Ramu CHV, Naidu YRV, Sharma AK (1994) Ferroelectrics 159:275Google Scholar
  27. 27.
    Yoshino K, Manada Y, Sawada K, Morita S, Takahashi H, Sugimoto R, Onoda M (1989) J Phys Soc Jpn 58:1320CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • V. M. Mohan
    • 1
  • V. Raja
    • 1
  • P. Balaji Bhargav
    • 1
  • A. K. Sharma
    • 1
  • V. V. R. Narasimha Rao
    • 1
  1. 1.Department of PhysicsSri Venkateswara UniversityTirupatiIndia

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