Poly-3-hexylthiophene

Two Hell UPS spectra of poly(3-hexylthiophene), or P3HT, compared with the DOVS derived from VEH band structure calculations 83], arc shown in Figure 5-14. The general chemical structure of poIy(3-a ky thiophcne) is sketched in Figure 5-4. The two UPS spectra, were recorded at two different temperatures, +190°C and -60 "C, respectively, and the DOVS was derived from VEH calculations on a planar conformation of P3HT. Compared to unsubslitutcd polythio-phene, the main influence in the UPS spectra due to the presence of the hexyl... 

Assadi, A. Svensson, C. Willander, M. Inganas, O. 1988. Field-effect mobility of poly(3-hexylthiophene). Appl. Phys. Lett. 53 195-197. 

Bao, Z. Dodabalapur, A. Lovinger, A. 1996. Soluble and processable regioregular poly (3-hexylthiophene) for thin film field-effect transistor applications with high mobility. Appl. Phys. Lett. 69 4108 1110. 

Kobashi, M. Takeuchi, H. 1998. Inhomogeneity of spin-coated and cast non-regioregular poly(3-hexylthiophene) films. Structures and electrical and photophysical properties. Macromolecules 31 7273-7278. 

H Nishino, G Yu, AJ Heeger, T-A Chen, and RD Rieke, Electroluminescence from blend films of poly(3-hexylthiophene) and poly(Y-vinylcarbzaolc), Synth. Met., 68 243-247, 1995. 

S. Amou, O. Haba, K. Shirato, T. Hayakawa, M. Ueda, K. Takeuchi, and M. Asai, Head-to-tail regioregularity of poly(3-hexylthiophene) in oxidative coupling polymerization with FeCl3, J. Polym. Sci., Part A Polym. Chem., 37 1943-1948, 1999. 

T.A. Chen and R.D. Rieke, The first regioregular head-to-tail poly(3-hexylthiophene-2,5-diyl) and a regiorandom isopolymer nickel versus palladium catalysis of 2(5)-bromo-5(2)- (bromozincio)-3-hexylthiophene polymerization, J. Am. Chem. Soc., 114 10087-10088, 1992. 

B. Xu and S. Holdcroft, Molecular control of luminescence from poly(3-hexylthiophenes), Macromolecules, 26 4457-4460, 1993. 

Poly(3-hexylfuran), optical band gap, 7 529t Poly(3-hexylthiophene) conducting, 7 517... 

Thus, many polymers with different conductivity were synthesized. To cite a few, these are polythiophene [158], 3-methylthiophene [159], polymers of 3-thiophene-acetic acid and methyl 3-thiophene-acetate [160], poly(2,5-thienylenevinylene) [161], poly(benzo[h]-thiophene) [162], poly(naphto[2,3-c]thio-phene) [163], poly(dithieno[3,2-h 2, 3 -fii]-thiophene) [164], poly(3- -hexylthiophene)... 

Brown PJ, 8irringhaus H, Harrison M, 8hkunov M, Friend RH (2001) Optical spectroscopy of field-induced charge in self-organized high mobility poly(3-hexylthiophene). Phys Rev B 63 125204... 

Brown PJ, Thomas D8, Kohler A, Wilson J8, Kim J-8, Ramsdale CM, 8irringhaus H, Friend RH (2003) Effect of interchain interactions on the absorption and emission of poly (3-hexylthiophene). Phys Rev B 67 064203... 

Mozer AJ, 8ariciftci N8, Pivrikas A, Osterbacka R, Juska G, Brassat L, Bassler H (2005) Charge carrier mobility in regioregular poly(3-hexylthiophene) probed by transient conductivity techniques a comparative study. Phys Rev B 71 035214... 

Joshi S, Grigorian S, Pietsch U, Pingel P, Zen A, Neher D, Scherf U (2008) Thickness dependence of the crystalline structure and hole mobility in thin films of low molecular weight poly(3-hexylthiophene). Macromolecules 41 6800... 

The soluble polythiophenes are the first conducting polymers that can be taken above their glass transition without decomposition and it will be interesting to study morphology-property relationships. Heeger et al.262) have recently described conformational changes in solutions of poly-3-hexylthiophene which seem to involve a coil-helix transformation as the temperature is decreased or a poor solvent is added. 

McCullough and coworkers had synthesized block copolymers of poly(3-hexylthiophene) and polystyrene or PMA by ATRP of the vinyl monomer from a polythiophene macroinitiator, which was prepared in several steps... 

Recently, Dai, Su, and coworkers synthesized the block copolymer of polythiophene and polypyridine from the vinyl-terminated polythiophene (Scheme 102) [336]. Meijer and coworkers used an allyl-terminated polythiophene to synthesize a block copolymer of poly(3-hexylthiophene) and polyethylene the ring-opening metathesis polymerization of cyclooctene in the presence of the allyl-terminated polythiophene was followed by hydrogenation (Scheme 103) [337]. 

Poly (3-hexylthiophene) [103] Pulse valve injection of macromolecules in solution. Another way of depositing molecules onto the surface that cannot be evaporated. 

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