Copolymers field effect transistors

Solution Processed Donor - Acceptor Copolymer Field-Effect Transistors 61... 

Chen Z, Lee MJ, Shahid Ashraf R, Gu Y, Albert-Seifried S, Meedom Nielsen M, Schroeder B, Anthopoulos TD, Heeney M, McCulloch I, Sirringhaus H (2012) High-performance ambipolar diketopyrrolopyrrole-thieno[3,2-b]thiophene copolymer field-effect transistors with balanced hole and electron mobilities. Adv Mater 24 647-652... 

A PLED based on the fluorene-PTV copolymer 591 emitted red-orange light (02MI192). Cyano substituted poly(thienylene-viniylene-thienylene) s have been synthesized and tested for their use in photovoltaic devices and field-effect transistors (09JPS(A)4028). 

There has also been considerable activity in the field of copolymers containing thiophene moieties. For example, the copolymer 86 has been shown to self-assemble providing a lamellar superstructure, and was also demonstrated as a material for field effect transistors... 

E. Ahmed, S. Subramaniyan, E S. Kim, H. Xin, S. A. Jenekhe, Benzobisthiazole-Based Donor-Acceptor Copolymer Semiconductors for Photovoltaic Cells and Highly Stable Field-Effect Transistors. Macromolecules 2011, 44, 7207-7219. 

Lim, E., B.-J. Jung, J. Lee, H.-K. Shim, J.-L Lee, Y.S. Yang, and L.-M. Do. 2005. Thin-film morphologies and solution-processable field-effect transistor behavior of a fluorene-thieno[3,2-b] thiophene-based conjugated copolymer. Macromolecules 38 4531 535. 

Yamamoto, T., H. Kotubo, M. Kobashi, and Y. Sakai. 2004. Alignment and field-effect transistor behavior of an alternative rr-conjugated copolymer of thiophene and 4-alkylthiazole. Chem Mater 16 4616-4618. 

Crouch, D.J., P.J. Skabara, J.E. Lohr, J.J.W. McDouall, M. Heeney, I. McCulloch, D. Sparrowe, M. Shkunov, S.J. Coles, P.N. Horton, and M.B. Hursthouse. 2005. Thiophene and selenophene copolymers incorporating fiuorinated phenylene units in the main chain Synthesis, characterization, and application in organic field-effect transistors. Chem Mater 17 6567-6578. 

Yu, X., Xiao, K., Chen, (., Lavrik, N.V., Hong, K Sumpter, B.G., and Geohegan, D.B. (2011) High-performance field-effect transistors based on polystyrene-b-poly(3-hexylthiophene) diblock copolymers. ACS Nano, 5,... 

I. Osaka, G. Sauve, R. Zhang, T. Kowalewski and R. D. McCullough. Novel thiophene-thiazolothiazole copolymers for organic field-effect transistors. Adv. Mater. 19(23), 4160-4165 (2007). 

Thienothiophene Copolymers in Field Effect Transistors 657 Table 17.1 Properties of thienothiophene-containing polymers... 

S. Tierney, C. Bailey, W. Duffy, R. Hamilton, M. Heeney, I. MacDonald, M. Shkunov, D. Spanowe, W. Zhang and I. McCulloch, Thieno[3,2-6]thiophene semiconducting copolymers for organic field effect transistor (OFET) applications. PMSEPrepr., 96, 180-181 (2007). 

The chemically selective layer can also be deposited inside a narrow gap formed in the gate structure. Thus, the so-called suspended-gate-field-effect transistor (SGFET) can be produced. Besides Pd [111], layers based on polypyrrole, sensitive to hydrogen-bonding gases [112], can be used, in the same way as polypyrrole-nitrotoluene copolymer, selective to aromatic hydrocarbons [113] and Pb phtalocyanine sensitive to NO2 [114]. Discontinuous or perforated Pd-gate FETs can be used for the determination of NH3 [115] or CO [116]. 

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