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http://dx.doi.org/10.5012/bkcs.2007.28.11.1945

Fluorene-Based Conjugated Copolymers Containing Hexyl-Thiophene Derivatives for Organic Thin Film Transistors  

Kong, Ho-Youl (Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology)
Chung, Dae-Sung (Polymer Research Institute, Department of Chemical Engineering, Pohang University of Science and Technology)
Kang, In-Nam (Department of Chemistry, The Catholic University of Korea)
Lim, Eun-Hee (Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge)
Jung, Young-Kwan (Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology)
Park, Jong-Hwa (Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology)
Park, Chan-Eon (Polymer Research Institute, Department of Chemical Engineering, Pohang University of Science and Technology)
Shim, Hong-Ku (Department of Chemistry and School of Molecular Science (BK21), Korea Advanced Institute of Science and Technology)
Publication Information
Bulletin of the Korean Chemical Society / v.28, no.11, 2007 , pp. 1945-1950 More about this Journal
Abstract
Two fluorene-based conjugated copolymers containing hexyl-thiophene derivatives, PF-1T and PF-4T, were synthesized via the palladium-catalyzed Suzuki coupling reaction. The number-average molecular weights (Mn) of PF-1T and PF-4T were found to be 19,100 and 13,200, respectively. These polymers were soluble in common organic solvents such as chloroform, chlorobenzene, toluene, etc. The UV-vis absorption maximum peaks of PF-1T and PF-4T in the film state were found to be 410 nm and 431 nm, respectively. Electrochemical characterization revealed that these polymers have low highest occupied molecular orbital (HOMO) levels, indicating good resistance against oxidative doping. Thin film transistor devices were fabricated using the top contact geometry. PF-1T showed much better thin-film transistor performance than PF-4T. A thin film of PF- 1T gave a saturation mobility of 0.001-0.003 cm2 V?1 s?1, an on/off ratio of 1.0 × 105, and a small threshold voltage of ?8.3 V. To support TFT performance, we carried out DSC, AFM, and XRD measurements.
Keywords
Fluorene; Thiophene; Organic thin-film transistor (OTFT);
Citations & Related Records
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Times Cited By Web Of Science : 6  (Related Records In Web of Science)
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1 Gelinck, G. H.; Geuns, T. C. T.; De Leeuw, D. M. Appl. Phys. Lett. 2000, 77, 1487   DOI   ScienceOn
2 Dimitrakoupoulos, C. D.; Melenfant, P. R. L. Adv. Mater. 2002, 14, 99-117   DOI   ScienceOn
3 Lim, E.; Jung, B.-J.; Lee, J.; Shim, H.-K.; Lee, J.-I.; Yang, Y. S.; Do, L.-M. Macromolecules 2005, 38, 4531   DOI   ScienceOn
4 Coakley, K. M.; McGhee, M. D. Chem. Mater. 2004, 16, 4533-4542   DOI   ScienceOn
5 Klauk, H.; Jackson, N. Solid State Technol. 2000, 43, 63
6 Kim, Y. M.; Lim, E.; Kang, I.-N.; Jung, B.-J.; Lee, J.; Koo, B. W.; Do, L.-M.; Shim, H.-K. Macromolecules 2006, 39, 4081-4085   DOI   ScienceOn
7 Mcculloch, I.; Heeney, M.; Bailey, C.; Genevicus, K.; Macdonald, I.; Shkunov, M.; David, S.; Tierney, S.; Wagner, R.; Zhang, W.; Chabinyc, M. L.; Kline, R. J.; Mcgehee, M. D.; Toney, M. F. Nature Materials 2006, 5, 328   DOI   ScienceOn
8 Lim, E.; Jung, B.-J.; Shim, H.-K. Macromolecules 2003, 35, 4288
9 Pommerehe, J.; Vestweber, H.; Guss, W.; Mahrt, R.; Bassler, H. H.; Porsch, M.; Daub, J. Adv. Mater. 1995, 7, 551-554   DOI   ScienceOn
10 Kline, R. J.; McGehee, M. D.; Kadnikova, E. N.; Liu, J.; Frechet, J. M. J.; Toney, M. F. Macromolecules 2005, 38, 3312-3319   DOI   ScienceOn
11 Meng, H.; Zheng, J.; Lovinger, A. J.; Wang, B.-C.; Patten, P. G. V.; Bao, Z. Chem. Mater. 2003, 15, 1778-1787   DOI   ScienceOn
12 Grell, M.; Bradley, D. D. C.; Ungar, G.; Hill, J.; Whitehead, K. S. Macromolecules 1999, 32, 5810   DOI   ScienceOn
13 Friend, R. H.; Gymer, R. W.; Holmes, A. B.; Burroughes, J. H.; Marks, R. N.; Taliani, C.; Bradley, D. D. C.; Dos Santos, D. A.; Bredas, J. L.; Logdlund, M.; Salanek, W. R. Nature (London) 1999, 397, 121   DOI   ScienceOn
14 Kawana, S.; Durrell, M.; Lu, J.; Macdonald, J. E.; Grell, M.; Bradley, D. D. C.; Jukes, C.; Jones, R. A. L.; Bennett, S. L. Polymer 2002, 43, 1907   DOI   ScienceOn
15 Yamamoto, T.; Kokubo, H.; Morikita, T. J. Polym. Sci., Part B: Polym. Phys. 2001, 39, 1713   DOI   ScienceOn
16 Bao, Z.; Dodabalapur, A.; Lovinger, A. J. Appl. Phys. Lett. 1996, 69, 4108   DOI   ScienceOn
17 Shim, H.-K.; Jin, J.-I. Adv. Polym. Sci. 2002, 158, 193
18 Horowitz, G. J. Mater. Res. 2004, 19, 1946-1962   DOI   ScienceOn
19 Dimitrakopoulos, C.; Malenfant, P. Adv. Mater. 2002, 14, 99   DOI   ScienceOn
20 Schmidt-Mende, L.; Fechtenkotter, A.; Mullen, K.; Moons, E.; Friend, R. H.; MacKenzie, J. D. Science 2001, 293, 1119
21 Brabec, C. J.; Sariciftci, N. S.; Hummelen, J. C. Adv. Funct. Mater. 2001, 11, 15   DOI
22 Ong, B. S.; Wu, Y.; Liu, P.; Gardner, S. J. Am. Chem. Soc. 2004, 126, 3378-3379   DOI   ScienceOn
23 Katz, H.; Bao, Z. J. Phys. Chem. B 2000, 104, 671-678   DOI   ScienceOn
24 Son, J.-H.; Kang, I.-N.; Oh, S.-Y.; Park, J.-W. Bull. Korean Chem. Soc. 2007, 28, 995-998   DOI   ScienceOn
25 Burroughes, J. H.; Bradley, D. D. C.; Brown, A. R.; Marks, R. N.; Mackey, K.; Friend, R. H.; Burns, P. L.; Holmes, A. B. Nature (London) 1990, 347, 539   DOI