Results 181 to 190 of about 25,995 (235)

Polythiophenes in Biological Applications

Journal of Nanoscience and Nanotechnology, 2014
Polythiophene and its derivatives have shown tremendous potential for interfacing electrically conducting polymers with biological applications. These semiconducting organic polymers are relatively soft, conduct electrons and ions, have low cytotoxicity, and can undergo facile chemical modifications.
Prakash, Sista, Koushik, Ghosh, Jennifer S, Martinez, Reginaldo C, Rocha   +3 more
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Photovoltaic devices based on polythiophenes and substituted polythiophenes

Synthetic Metals, 2001
Abstract In recent years there has been considerable interest in the fabrication of photovoltaic devices using polymeric and organic materials. This paper presents work carried out using a range of polythiophenes, including some substituted with porphyrin moieties as light harvesters.
C.O. Too, G.G. Wallace, A.K. Burrell, G.E. Collis, D.L. Officer, E.W. Boge, S.G. Brodie, E.J. Evans   +7 more
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Polythiophene

2009
Abstract Major Applications Polythiophenes and substituted polythiophenes are utilized in a variety of applications where their conducting properties pose an advantage. They are currently used as anti-static coatings and as films. Research is being done to explore their use in electrochromic and electroluminescent devices. They have also
Amit S Kulkarni, Shrish Rane, Gregory Beaucage   +2 more
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Nanorubbing of Polythiophene Surfaces

Journal of the American Chemical Society, 2005
This work describes a new orientation method for semicrystalline poly(3-hexylthiophene) (P3HT) thin films, coupling nanorubbing and subsequent crystallization. Using the stylus of an atomic force microscope, we align the polymer chains on P3HT surfaces with a spatial and geometrical control of the oriented domains (nanorubbing).
Derue, Gwennaelle, Coppee, Severine, Gabriele, Sylvain, Surin, Mathieu, Geskin, Victor, Montervede, Fabien, Leclère, Philippe, Lazzaroni, Roberto, Damman, Pascal   +8 more
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Polythiophene

Abstract This chapter presents the history of polythiophene over the period from 1980 to 1988. Although the history of polythiophene does not date back as far as the other conjugated polymers discussed in the previous chapters, a significant amount of work was reported quickly following its introduction in 1980.
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Electrochemical synthesis and characterization of homopolymers of polyfuran and polythiophene and bipolymer films polyfuran/polythiophene and polythiophene/polyfuran

Applied Surface Science, 2001
In this study, conductive homopolymers and bipolymers of thiophene and furan were synthesized electrochemically in an anhydrous medium in a nitrogen atmosphere using LiClO4 as the supporting electrolyte and their properties (conductivities, surface structures, thermal properties) were analyzed.
Kabasakaloglu, M, Talu, M, Sari, BEKİR, Yildirim, F   +3 more
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Ion Implantation of Polythiophene

1987
Polythiophene as a free-standing film has been ion implanted with F+-ions having 25 keV energy. A rapid conductivity increase starts at doses between 5·1015…5 .1016 F+/cm2. The conductivity changes by 6 orders of magnitude being 1.10−2 Ω−crn−1 at a highest dose of 1·1017 F+/cm2. RBS spectra show that a 0.35...0.40 μm surface layer is damaged.
Isotalo Heikki, Stubb Henrik, Saarilahti Jaakko   +2 more
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Vibrations of polythiophenes

Computational and Theoretical Chemistry, 2012
Abstract Structural and vibrational properties of thiophene oligomers up to the dodecamer have been investigated by first principles calculations. The main goal is to provide more detailed interpretations of the infrared and Raman spectra, extending the insights to odd-sized polythiophenes, which have not been treated so far.
Sergiu C. Pop, Titus A. Beu
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Dynamics of polythiophene

Journal of Physics: Condensed Matter, 1989
It is well known that defects play a central role in the values of the transport properties of the conducting polymers. With the aim of determining the nature of these defects in polythiophene, the dynamics of this compounds are investigated. In this paper, results concerning the first-order and second-order infrared absorption spectra of a finite and ...
G Poussigue, C Benoit
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The polythiophene paradox

Synthetic Metals, 1989
Abstract Cyclic voltammetry and constant current oxidation show that polythiophene is not stable at potentials used for its synthesis. In contrast to bithiophene electropolymerization of thiophene is very concentration dependent. Even at high monomer concentrations yields for polythiophene are less than 60% of those for polybithiophene (corrected for
B. Krische, M. Zagorska
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