Raman Study of trans-Polyacetylenes Doped with Electron Donor and Acceptors

Kim JY; Ihm DW; Furukawa Y; Tasumi M

Korea Polymer Journal, Vol.6, No.4, 302-306, October, 1998

The Raman spectra of trans-polyacetylene films doped heavily with electron onor (Na) and acceptors (iodine, SO₃, HCIO₃,FeCl₃) were studied with excitation wavelengths between 488.0 and 1320 nm. The observed Raman bands are attributed to negatively and positively charged domains created by donor- and acceptor-doping, respectively. The observed large wavenumber dispersion of the C=C stretching vibration (v₁ band) of charged domains suggests a broad distribution of localization lengths in the charged domains. The charged domains generated by doping are localized over not more than eleven conjugated C=C bonds. The observed wavenumber of the v₂ band (CC stretch)of the acceptor-doped forms is higher than that of the corresponding band of pristine trans-polylacetylene, whereas the contrary is the case for the donor-doped forms.

[References]

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Moses D, Denenstein A, Chen J, Heeger AJ, McAndrew P, Woerner T, MacDiarmid AG, Park YW, Phys. Rev., B, Condens. Matter, 25, 7652 (1982)
Chung TC, Moraes F, Flood JD, Heeger AJ, Phys. Rev., B, Condens. Matter, 29, 2341 (1984)
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Kuzmany H, Makromol. Chem. Makromol. Symp., 37, 81 (1990)
Harada I, Furukawa Y, Vivrational Spectra and Structure, ed. by J.R. Durig, Elsevier, Amsterdam, vol. 19, p. 369 (1991)
Gussoni M, Castiglioni C, Zerbi G, Spectroscopy of Advanced Materials, R.J.H. Clark and R.E. Hester Eds., Wiley, Chichester, p. 251 (1991)
Furukawa Y, Harada I, Tasumi M, Shirakawa H, Ikeda S, Chem. Lett., 1489 (1981)
Faulques E, Lefrant S, Rachdi F, Bernier P, Synth. Met., 9, 53 (1984)
Eckhardt H, Shacklette LW, Szobota JS, Baughman H, Mol. Cryst. Liq. Cryst., 117, 401 (1985)
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Kim JY, Ando S, Sakamoto A, Furukawa Y, Tasumi M, Synth. Met., 89, 149 (1997)
Kim JY, Furukawa Y, Tasumi M, Chem. Phys. Lett., 276, 418 (1997)
Ito T, Shirakawa H, Ikeda S, J. Polym. Sci. A: Polym. Chem., 12, 11 (1974)
Uchida Y, Furukawa Y, Tasumi M, Synth. Met., 69, 55 (1995)
Ikehata S, Kaufer J, Woerner T, Pron A, Druy A, Sivak A, Heeger AJ, Macdiarmid AG, Phys. Rev. Lett., 45, 1123 (1980)
Furukawa Y, Yokonuma N, Tasumi M, Kuroda M, Nakayama J, Mol. Cryst. Liq. Cryst., 256, 113 (1994)
Takeuchi H, Arakawa T, Furukawa Y, Harada I, Shirakawa H, J. Mol. Struct., 158, 179 (1987)
Hayashi H, Noguchi T, Tasumi M, Photochem. Photobiol., 49, 337 (1989)
Harada I, Furukawa Y, Tasumi M, Shirakawa H, Tasimi M, J. Chem. Phys., 73, 4746 (1980)
Furukawa Y, Imai Y, Ohta H, Tasumi M, Synth. Met., 41, 91 (1991)
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[Referenced By]

[1] Heeger AJ, Kivelson S, Schrieffer JR, Su WP, Rev. Mod. Phys., 60, 781 (1988)

[2] Moses D, Denenstein A, Chen J, Heeger AJ, McAndrew P, Woerner T, MacDiarmid AG, Park YW, Phys. Rev., B, Condens. Matter, 25, 7652 (1982)

[3] Chung TC, Moraes F, Flood JD, Heeger AJ, Phys. Rev., B, Condens. Matter, 29, 2341 (1984)

[4] Su WP, Schrieffer JR, Heeger AJ, Phys. Rev. Lett., 42, 1698 (1979)

[5] Su WP, Schireffer JR, Heeger AJ, Phys. Rev., B, Condens. Matter, 22, 2099 (1980)

[6] Kuzmany H, Makromol. Chem. Makromol. Symp., 37, 81 (1990)

[7] Harada I, Furukawa Y, Vivrational Spectra and Structure, ed. by J.R. Durig, Elsevier, Amsterdam, vol. 19, p. 369 (1991)

[8] Gussoni M, Castiglioni C, Zerbi G, Spectroscopy of Advanced Materials, R.J.H. Clark and R.E. Hester Eds., Wiley, Chichester, p. 251 (1991)

[9] Furukawa Y, Harada I, Tasumi M, Shirakawa H, Ikeda S, Chem. Lett., 1489 (1981)

[10] Faulques E, Lefrant S, Rachdi F, Bernier P, Synth. Met., 9, 53 (1984)

[11] Eckhardt H, Shacklette LW, Szobota JS, Baughman H, Mol. Cryst. Liq. Cryst., 117, 401 (1985)

[12] Tanaka J, Saito Y, Shimizu M, Tanaka C, Tanaka M, Bull. Chem. Soc. Jpn., 60, 1595 (1987)

[13] Mulazzi E, Lefrant S, Synth. Met., 28, D323 (1989)

[14] Furukawa Y, Ohta H, Sakamoto A, Tasumi M, Spectrochem. Acta, 47A, 1367 (1991)

[15] Furukawa Y, Uchida Y, Tasumi M, Spangler CW, Mol. Cryst. Liq. Cryst., 256, 721 (1994)

[16] Kim JY, Ando S, Sakamoto A, Furukawa Y, Tasumi M, Synth. Met., 89, 149 (1997)

[17] Kim JY, Furukawa Y, Tasumi M, Chem. Phys. Lett., 276, 418 (1997)

[18] Ito T, Shirakawa H, Ikeda S, J. Polym. Sci. A: Polym. Chem., 12, 11 (1974)

[19] Uchida Y, Furukawa Y, Tasumi M, Synth. Met., 69, 55 (1995)

[20] Ikehata S, Kaufer J, Woerner T, Pron A, Druy A, Sivak A, Heeger AJ, Macdiarmid AG, Phys. Rev. Lett., 45, 1123 (1980)

[21] Furukawa Y, Yokonuma N, Tasumi M, Kuroda M, Nakayama J, Mol. Cryst. Liq. Cryst., 256, 113 (1994)

[22] Takeuchi H, Arakawa T, Furukawa Y, Harada I, Shirakawa H, J. Mol. Struct., 158, 179 (1987)

[23] Hayashi H, Noguchi T, Tasumi M, Photochem. Photobiol., 49, 337 (1989)

[24] Harada I, Furukawa Y, Tasumi M, Shirakawa H, Tasimi M, J. Chem. Phys., 73, 4746 (1980)

[25] Furukawa Y, Imai Y, Ohta H, Tasumi M, Synth. Met., 41, 91 (1991)

[26] Kamisuki T, Hirose C, J. Phys. Chem., 95, 5003 (1991)

[27] Kivelson S, Heeger AJ, Phys. Rev. Lett., 55, 308 (1985)