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A novel side-chain conjugated polythiophene copolymer with a narrow band gap of 1.72eV, poly -thiophene (POTVTh-Th), is synthesized by the Stille coupling reaction. The third order nonlinear optical properties of the copolymer are measured by femtosecond Z-scan technique at 800nm. The results indicate that the third order nonlinear susceptibilities of the polymer solution and the film are 8.84×10-10esu and 7.25×10-9esu, respectively, which are 2.17 and 1.68 times bigger than those of its homopolymer, showing enhanced third order nonlinear optical properties and the good nonlinear optical properties of this side-chain conjugated copolymers.
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Keywords:
- side-chain conjugated polymers /
- thiophene copolymer /
- third order nonlinear optical susceptibility /
- nonlinear absorption coefficient
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[2] Fan S, Sun M, Chen Z, Luo J, Hou Q, Peng J, Yang H, Zhang D, Li F, Cao Y 2007 J. Phys. Chem. B 111 6113
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[14] Callaway J 1976 Quantum Theory of Solid State 25 236
[15] Vinitha G, Ramalingam A, Palanisamy P K 2007 Spectrochimica Acta Part A 68 1
[16] Ma G, Guo L, Mi J, Liu Y, Qiang S, Liu J, He G, Li Y, Wang R 2001 Physica B 305 147
[17] Guo W F, Sun X B, Sun J,Wang X Q, Zhang G H, Ren Q, Xu D 2007 Chemical Physics Letters 435 65
[18] Kishida H, Hirota K, Wakabayashi T, Okamoto H 2005 Appl. Phys. Lett. 87 121902
[19] Dong Y, Lu J, Yan F, Xu Q 2009 Polymer Composites 30 723
[20] Cassano T, Tommasi R, Ferrara M, Babudri F, Farinola G M, Naso F 2001 Chemical Physics 272 111
[21] Ronchi A, Cassano T, Tommasi R, Babudri F, Cardone A, Farinola G M, Naso F 2003 Synthetic Metals 139 831
[22] Sauteret C, Hermann J P, Frey R 1976 Phys. Rev. Lett. 36 956
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[1] Yoon C B, Shim H K 2000 Synthetic Metals 111 469
[2] Fan S, Sun M, Chen Z, Luo J, Hou Q, Peng J, Yang H, Zhang D, Li F, Cao Y 2007 J. Phys. Chem. B 111 6113
[3] Kohshin T, Takayoshi I, Takahiro Y, Teruhisa K, Kazuhiko M 2001 Synthetic Metals 123 91
[4] Yi W H , Xu YL , Feng W , Wu H C, Gao C 2006 Acta Phys. Sin. 55 3736 (in Chinese)[易文辉、徐友龙、封 伟、吴洪才、高 潮 2006 物理学报 55 3736]
[5] Tan Z, Hou J, He Y, Zhou E, Yang C, Li Y F 2007 Macromolecules 40 1868
[6] Kim J Y, Lee K, Coates N E, Moses D, Nguyen T Q, Dante M, Heeger A 2007 Science 317 222
[7] Hou J H ,Tan Z , Li Y F 2006 J.Am. Chem. Soc 128 4911
[8] Zhou E, Tan Z, Yang Y, Huo L J, Zou Y P, Yang C H, Li Y F 2007 Macromolecules 40 1831
[9] Gao C, Xiao Q, Qiu S J, Hou C Q, Xu P P, Liu J Q 2009 Acta Phys.Sin. 58 3578 (in Chinese)[高 潮、肖 奇、邱少君、候超奇、许培培、刘建群 2009 物理学报 58 3578]
[10] Hou J H, Yang C H, Chang H, Li Y F 2006 Chem. Commun. 8 871
[11] Hou J H, Huo L J, He C, Yang C H, Li Y F 2006 Macromolecules 39 594
[12] Yoshino K, Nakajima S, Sugimoto R 1987 Japanese Journal of Applied Physics 26 L1038
[13] Das A, Dhara S, Patnaik A 1999 Nuclear Instruments and Methods in Physics Research B 149 53
[14] Callaway J 1976 Quantum Theory of Solid State 25 236
[15] Vinitha G, Ramalingam A, Palanisamy P K 2007 Spectrochimica Acta Part A 68 1
[16] Ma G, Guo L, Mi J, Liu Y, Qiang S, Liu J, He G, Li Y, Wang R 2001 Physica B 305 147
[17] Guo W F, Sun X B, Sun J,Wang X Q, Zhang G H, Ren Q, Xu D 2007 Chemical Physics Letters 435 65
[18] Kishida H, Hirota K, Wakabayashi T, Okamoto H 2005 Appl. Phys. Lett. 87 121902
[19] Dong Y, Lu J, Yan F, Xu Q 2009 Polymer Composites 30 723
[20] Cassano T, Tommasi R, Ferrara M, Babudri F, Farinola G M, Naso F 2001 Chemical Physics 272 111
[21] Ronchi A, Cassano T, Tommasi R, Babudri F, Cardone A, Farinola G M, Naso F 2003 Synthetic Metals 139 831
[22] Sauteret C, Hermann J P, Frey R 1976 Phys. Rev. Lett. 36 956
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