Phenylene-thiophenes

Synthesis of Optically Inactive Poly(phenylene-thiophene) 13240... 

Tuning the Properties of Substituted Phenylene-Thiophene Copolymers... 

Phenylene-thiophene copolymers 562b and 562a emit blue light at ca. 450-475 nm, with somewhat different reported ELex values of 0.2% (96AM982) and 0.03% (97MM4608) respectively, for ITO/polymer/Ca configurations. 

A. Facchetti, J. Letizia, M. H. Yoon, M. Mushrush, H. E. Katz, and T. J. Marks, Synthesis and characterization of diperfluorooctyl-substituted phenylene-thiophene oligomers... 

Conformational analysis was carried out on the molecules shown in Figure 42 <2002CPL(363)18>. One group consists of thiophene-phenylene-thiophene (TPT) 178, dimethyl-substituted TPT (DMTPT) 179, and dimethoxy-substituted TPT (DMOTPT) 180, and the other group is composed of dihexyl-substituted bithiophene (DHBT) 175 and dicyclohexyl-substituted bithiophene (DCBT) 181. 

Finally, conjugated materials 40 based on poly(phenylene thiophene) and poly (fluorene thiophene) main chain polymers functionalized with pendant trithiocyanato ruthenium terpyridine complexes were synthesized by the Suzuki coupling reaction. Heterojunction photovoltaic cells with the simple structure ITO/polymer/C-60/Al were fabricated. Under simulated AM1.5 solar light illumination, the short circuit currents, open circuit voltages, and power conversion efficiencies of the photovoltaic cells were measured to be 1.53-2.58 mAcm 2, 0.12-0.24 V, and 0.084-0.12%, respectively [77]. 

Mushrush, M., Facchetti, A., Lefenfeld, M., Katz, H.E. and Marks, T.J., Easily processable phenylene-thiophene-based organic field-effect transistors and solution-fabricated nonvolatile transistor memory elements, J. Am. Chem. Soc., 125, 9414-9423, 2003. 

Mushrush, M. et al.. Easily processable phenylene-thiophene-based organic field-effect... 

Phenylene-thiophene oligomers bis(hexylbithienyl) benzene and 6PTTP6... 

FIGURE 5.3.4 Chemical structures of phenylene-thiophene co-oligomers. 

J.-H. Tsai, C.-C. Chueh, W.-C. Chen, C.-Y. Yu, G.-W. Hwang, C. Ting, E.-C. Chen, H.-F. Meng,NewThiophene-Phenylene-Thiophene Acceptor Random Conjugated Copolymers for Optoelectronic Applications. /. Polym. Sci. Part Polym. Chem. 2010,48,2351-2360. 

Marder et a/./ describe the synthesis of several new photorefractive polymers, which are composed of a new type of nonlinear optical chromophore attached to conjugated polymer, poly(p-phenylene-thiophene). Since the NLO chromophore is labile in many reaction conditions, the Stille coupling reaction was used to prepare these polymers. The resulting polymers exhibit high PR performances. An optical gain coefficient of 158 cm at a field of 50 V/ m and a diffraction efficiency of 68% at a field of 46 V/ m for polymer PI were obtained, which are among the best values for fully functionalized PR polymers to date. 

You et al. describes the synthesis and physical study of several new photorefractive polymers that consist of a nonlinear optical chromophore attached to conjugated poly(p-phenylene-thiophene)s backbones. A Stille coupling reaction was used to prepare these materials. 

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