Relevant bibliographies by topics / Poly(3-alkylthiophenes)

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Poly(3-alkylthiophenes)'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 February 2022

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Journal articles on the topic "Poly(3-alkylthiophenes)"

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Abdou, Mohamed S. A., and Steven Holdcroft. "Gold-Decorated Poly(3-alkylthiophenes)." Chemistry of Materials 8, no. 1 (January 1996): 26–31. http://dx.doi.org/10.1021/cm950241j.

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Gustafsson, G., O. Ingan⇒, S. Stafström, H. Österholm, and J. Laakso. "Stretch-oriented poly(3-alkylthiophenes)." Synthetic Metals 41, no. 1-2 (April 1991): 593–96. http://dx.doi.org/10.1016/0379-6779(91)91139-2.

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Shinohara, Yoshikazu, K. Ohara, Hachiro Nakanishi, Yoshio Imai, and Yukihiro Isoda. "Thermoelectric Properties of Poly(3-Alkylthiophenes)." Materials Science Forum 492-493 (August 2005): 141–44. http://dx.doi.org/10.4028/www.scientific.net/msf.492-493.141.

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Typical conductive polymers of poly(3-alkylthiophenes) were synthesized by oxidative polymerization. Alkyl side chains were CnH2n+1 with n=4, 6, 8, 12. The regioregularity with the HT linkage was larger than 99% based on NMR analysis. Completely regioregular head-to-tail (HT) poly(3-alkylthiophenes) were obtained. We have evaluated the effect of side chain size on the thermoelectric properties of Seebeck coefficient and electrical conductivity. The results were as follows: 1) Seebeck coefficient decreased with an increasing electrical conductivity. 2) High Seebeck coefficient >1mV/K was observed at low electrical conductivity <10-2S/cm. 3) The small side chain caused the higher electrical conductivity in the range of electrical conductivity <10- 1S/cm.
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Botta, C., A. Bolognesi, S. Luzzati, R. Tubino, and A. Borghesi. "Photoexcitation spectroscopy of poly-3-alkylthiophenes." Synthetic Metals 41, no. 3 (May 1991): 1323–26. http://dx.doi.org/10.1016/0379-6779(91)91616-i.

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Gustafsson, G., O. Inganäs, J. O. Nilsson, and B. Liedberg. "Thermal undoping in poly(3-alkylthiophenes)." Synthetic Metals 26, no. 3 (November 1988): 297–309. http://dx.doi.org/10.1016/0379-6779(88)90245-7.

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Stein, P. C., A. Bolognesi, M. Catellani, S. Destri, and L. Zetta. "NMR studies of poly(3-alkylthiophenes)." Synthetic Metals 41, no. 1-2 (April 1991): 559–62. http://dx.doi.org/10.1016/0379-6779(91)91132-t.

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Hsu, Wen Ping, Kalle Levon, Ko Shan Ho, Allan S. Myerson, and T. K. Kwei. "Side-chain order in poly(3-alkylthiophenes)." Macromolecules 26, no. 6 (November 1993): 1318–23. http://dx.doi.org/10.1021/ma00058a021.

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Watanabe, Itsuo, Keith Hong, and Michael F. Rubner. "Langmuir-Blodgett manipulation of poly(3-alkylthiophenes)." Langmuir 6, no. 6 (June 1990): 1164–72. http://dx.doi.org/10.1021/la00096a024.

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Gustafsson, G., O. Inganäs, and J. O. Nilsson. "Thermal instability of doped poly(3-alkylthiophenes)." Synthetic Metals 28, no. 1-2 (January 1989): 427–34. http://dx.doi.org/10.1016/0379-6779(89)90555-9.

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Winokur, M. J., Paula Wamsley, Jeff Moulton, Paul Smith, and A. J. Heeger. "Structural evolution in iodine-doped poly(3-alkylthiophenes)." Macromolecules 24, no. 13 (June 1991): 3812–15. http://dx.doi.org/10.1021/ma00013a011.

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Dissertations / Theses on the topic "Poly(3-alkylthiophenes)"

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Battaglini, Elena. "Study of the second hyperpolarizability of poly(3-alkylthiophenes) using the third-harmonic scattering technique." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20633/.

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During the past years, the considerable need in the domain of communications for more potent photonic devices has focused the research activities into the nonlinear optical (NLO) materials which can be used for modern optical switches. In this regard, a lot of research activities are focused on the organic materials and conjugated polymers which offer more advantages compared to the inorganic ones. On this matter, poly(3-alkylthiophene) (P3AT), an organic conjugated polymer, can be investigated as potential optical material with in particular the focus on the NLO properties such as the first- and second-hyperpolarizability, β and γ respectively. The activities carried out at the Laboratory of Polymer Synthesis of the KU Leuven, during the master's thesis work, focused on the study of conjugated polymers in order to evaluate their NLO properties for the future purpose of applications in optical systems. In particular, three series of polythiophenes functionalized with an alkyl side chain in the 3-position were synthesized: poly(3-hexylthiophene) (P3HT), poly[3-(2-ethylhexyl)thiophene] (P3EHT) and random copolymer of the two regio-isomers of P3HT. They were made in order to study the influence of molar mass, branching and regio-irregularity on the γ-value. The Kumada catalyst transfer condensative polymerization (KCTCP) and the Pd(RuPhos)-protocol were used for the polymerizations in order to have control over the molar mass of the growing chain and consequently to obtain well-defined and reproducible materials. The P3AT derivatives obtained were characterized by gel permeation chromatography (GPC), spectroscopic techniques (1H-NMR, UV-Vis) and the γ-value was investigated using the third-harmonic scattering (THS) technique. In particular, the THS technique is useful to investigate the optical behavior of the series of polymers in solution.
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Krajčovič, Jozef. "Studium thiofenových oligo-kopolymerů: syntéza a optoelektronické vlastnosti." Doctoral thesis, Vysoké učení technické v Brně. Fakulta chemická, 2010. http://www.nusl.cz/ntk/nusl-233316.

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Thesis presents synthesis and study of thiophene monomers, oligomers and polymers. The new series of thieno[3,4-b]pyrazine copolymers based on 3-dodecylthiophene and pyrazine monomers were prepared by oxidative polymerization with FeCl3. The effective synthetic method for preparation of 3-alkylthiophenes and thiophene oligomers was developed by optimizing of Kumada cross-couplig. The mentioned method could be realized for multikilos scale with possibility of transfer to pilot plant production. The second part of thesis focuses on synthesis and study of new thiophene compounds, which consist of both 2,3-diazo-1,3-butadiene bridge with two terminal chromophores and two thiophene units linked together via -position by pyrazine or hydrazine bridge. Finally, the new type of regular alternating copolymer consists of 2,2´:5´,2´´-terthiophene-5,5´-dicarboxylic acid (TEDA) and polyethyleneoxide (PEO) was prepared. Formation of polymer nano-subunits as separated phases in solid state was confirmed by TEM.
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Lin, Wei-Cheng, and 林韋誠. "Synthesis of Photo-Crosslinkable Fullerene Derivatives and Poly(3-alkylthiophenes) for Applications in Organic." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/14482204573698866033.

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碩士
國立交通大學
應用化學研究所
98
The goal of this research is aimed to improve the performance of the polymer solar cell by adding a cross-linked material as an interlayer. The first part of this study, the novel fullerene derivatives (PCBOD, POFOD and PAFOD) functionalized with a dendron containing two oxetane groups as photo cross-linkers, have been rationally designed and synthesized. In situ cross-linking of these three fullerene derivatives was carried out by UV illumination in the presence of a photoacid to generate a robust, adhesive, and solvent-resistant thin film. This cross-linked network enables a sequential active layer to be successfully deposited on top of this interlayer to overcome the problem of interfacial erosion and realize a multilayer inverted device by all-solution processing. The inverted solar cell devices based on an ITO/TiOx/C-PCBOD or C-POFOD/P3HT:PCBM/MoO3/Ag configuration achieve enhanced device characteristics. The PCE have been improved from 3.5 % to 4.5 % after modification with the PCBOD and POFOD interlayer. On top of that, this promising approach can be applied to another inverted solar cell device modified with the C-PCBOD interlayer, ITO/TiOx/C-PCBOD/PCPDTBT:PC71BM/MoO3/Ag, using PCPDTBT as the p-type low-band-gap conjugated polymer. The PCE has been improved from 2.6 % to 4.0 %. This interlayer exerts multiple positive effects on both polymer/C-PCBOD and PCBM/C-PCBOD localized heterojunctions at the interface of the active layer, including improved exciton dissociation efficiency, reduced charge recombination, decreased interface contact resistance, and induction of vertical phase separation to reduce the bulk resistance of the active layer as well as passivation of the local shunts at the TiOx interface. The second part of this study, we synthesized a novel cross-linkable regioregular polythiophene derivative P3HOT via the Grignard metathesis route. The P3HOT was functionalized with oxetane moieties attaching to the polymer backbone via an alkyl spacer. The cross-linkable oxetane groups were polymerized cationically under UV illumination in the presence of a photoacid and the advantages of this cross-linked network were described above. The polymer solar cells were fabricated with the structure of ITO/PEDOT:PSS/C-P3HOT-10/P3HT:PCBM/Ca/Al. For the device with the C-P3HOT-10 interlayer, the results demonstrate substantially declining performance, especially the Jsc decreases from 9.86 mA/cm2 to 6.56 mA/cm2. We speculate the decadence of the performance may result from the ionic photoacid which act as a hole trap, therefore the Jsc decreases significantly. Further work may be expected along the direction of selecting the non-ionic photoacid to reduce the degree of charge trapping.
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Shun, Pei-Chun, and 孫佩君. "STUDY ON THE SYNTHESIS AND CHARACTERIZATION OF REGIOREGULAR POLY(3-ALKYLTHIOPHENES) AND COPOLYMERS AND APPLICATION ON ORGANIC FIELD-EFFECT TRANSISTOR." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/51243447748756877241.

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碩士
大同大學
化學工程學系(所)
94
The regioregular of poly(3-alkylthiophene) (HT-P3ATs) (P3MT, P3HT, P3OT, P3DT, and P3DDT) with different length of the alkyl side chains can be synthesized successfully by GRIM (Grignard metathesis) method. Besides, we were also successfully synthesized copoly(3-alkyl- thiophenes) (P3MTHT, P3MTOT, P3HTDT, and P3HTDDT). These polymers containing high percentage of head-to-tail coupling, can be easy of access a low energy, low space obstacle coplanar conformation, leading to highly conjugated polymer. HT-P3ATs and their copolymers possess better conductivity and optical properties, and can undergo self-assembly. And these materials have a significant practical impact in optoelectronic application-organic field-effect transistor (OFET). The physical properties of these polymers were done by NMR, FTIR, EA, GPC, XRD, DSC, TGA, TMA, UV, PL, and CV. The regioregularity of these samples were calculated to be 80% ~ 97% using by NMR data. It is found that the molecular weights of P3ATs and copolymers were about 3,900-17,200 g/mol and 8,140-34,001 g/mol, respectively. These polymers exhibit a narrow PDI. The thermotropic transition behavior of these materials were examined by DSC, an increased in the length of the side chain decreased remarkably the melting point and exhibit an excellent thermal stability under 400 ℃. The XRD results indicate that poly(3-alkylthiophenes) and copolymers have a great order and crystalline structure. The UV-visible spectra of poly(3-alkylthiophenes) and copolymers show that red shift of λmax increase with increasing the level of regioregularity and that the copolymers has a higher conjugation. The bandgap calculated of poly(3-alkylthiophenes) and copolymers from UV-visible and exhibit a small bandgap. Besides, the poly(3-alkylthiophenes) and copolymers of PL emit yellow-orange light in CHCl3 solution state. The cyclic voltammetry can be calculated the values of oxidation potential, HOMO, and LUMO. The characteristics of thin-film transistor (TFT) fabricated with P3ATs and copolymers have been investigated. The charge transport mobility, on/off current ratio, threshold voltage and subthreshold slope of P3AT OTFTs are 2.08 x 10 – 2 cm 2/Vs, 1 x 10 4, 10.5 V, 2.89 V/decade (P3HT) and 3.18 x 10 – 3 cm 2/Vs, 4.4 x 10 3, 10.5 V, 1.43 V/decade (P3OT), respectively. The charge transport mobility, on/off current ratio, threshold voltage and subthreshold slope of copolymer OTFT are 1.79 x 10 – 2 cm 2/Vs, 1 x 10 4, 11.6 V, 2.88 V/decade (P3MTOT) and 1.32 x 10 – 3 cm 2/Vs, 6.4 x 10 4, 12.1 V, 1.79 V/decade (P3MTHT), respectively.
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Book chapters on the topic "Poly(3-alkylthiophenes)"

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Stein, P. C., A. Bolognesi, M. Catellani, S. Destri, and L. Zetta. "NMR Studies of Poly(3-alkylthiophenes)." In Electronic Properties of Polymers, 346–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-84705-9_63.

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Inganäs, O., M. Sundberg, G. Gustafsson, J. O. Nilsson, S. Stafström, and B. Sjögren. "Chromism in the Poly(3-alkylthiophenes)." In Springer Series in Solid-State Sciences, 336–42. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-83833-0_63.

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Shinohara, Yoshikazu, K. Ohara, Hachiro Nakanishi, Yoshio Imai, and Yukihiro Isoda. "Thermoelectric Properties of Poly(3-Alkylthiophenes)." In Functionally Graded Materials VIII, 141–44. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-970-9.141.

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Botta, C., S. Luzzati, S. Destri, R. Tubino, and G. Lanzani. "Photoinduced Absorption Spectroscopy of Poly-3-Alkylthiophenes." In Electronic Properties of Polymers, 390–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-84705-9_72.

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Kotkar, Dilip, Pushpito K. Ghosh, and Anjan Ray. "Chiral Conducting Poly (3-Alkylthiophenes): Spectroscopic and Electrochemical Properties." In Frontiers of Polymer Research, 407–11. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3856-1_42.

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Bolognesi, Alberto, Chiara Botta, and William Porzio. "Highly Regioregular Poly-3-alkylthiophenes: Influence of the Structure on Photoluminescence." In Molecular Materials and Functional Polymers, 121–28. Vienna: Springer Vienna, 2001. http://dx.doi.org/10.1007/978-3-7091-6276-7_12.

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Sariciftci, N. S., H. Neugebauer, K. U. Gaudl, P. Bäuerle, A. Grupp, and M. Mehring. "In Situ Spectroscopic Studies on Viologen Functionalized Poly(3-Alkylthiophenes) During Electrochemical Redox Processes." In Electronic Properties of Polymers, 176–79. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-84705-9_33.

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Sworakowski, J., A. Chyla, and M. Bieńkowski. "Formation and Electrical and Optical Properties of Multi-Component Langmuir-Blodgett Films Containing Poly(3-n-Alkylthiophenes)." In Photoactive Organic Materials, 441–56. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-017-2622-1_30.

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McBride, Michael, Guoyan Zhang, Martha Grover, and Elsa Reichmanis. "Poly(3-alkylthiophenes): Controlled Manipulation of Microstructure and its Impact on Charge Transport." In Conjugated Polymers, 351–89. CRC Press, 2019. http://dx.doi.org/10.1201/9780429190520-11.

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Conference papers on the topic "Poly(3-alkylthiophenes)"

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Xu, Bai, and Steven Holdcroft. "Structural basis for luminescence from poly(3-alkylthiophenes)." In IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, edited by Esther M. Conwell, Milan Stolka, and M. Robert Miller. SPIE, 1993. http://dx.doi.org/10.1117/12.151164.

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