Thermal undoping in poly(3-alkylthiophenes)

Gustafsson, G.; Inganäs, Olle; Nilsson, J. O.; Liedberg, Bo

doi:10.1016/0379-6779(88)90245-7

Cited by 62 publications

(15 citation statements)

References 25 publications

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“…From FTIR spectra of dedoped films of P3AT no evidence for an irreversible chemical attack on the polymer can be obtained [85,86,88]. Several cycles of doping and thermal undoping did not give rise to accumulated defects high enough in concentration to be detected in the FTIR spectra.…”

Section: Deoopingmentioning

confidence: 87%

“…In ferrichloride doped P30T it has been observed that the anion (FeC4 -) is converted to FeCl2, possibly via the formation of FeCl3, during thermal dedoping [85,86]. In addition, a loss of chlorine was observed.…”

Section: Deoopingmentioning

confidence: 95%

“…The degradation of the conductivity of thin films (1000 A) of P3HT at 110 °C in laboratory air is very rapid [85,86]. In one hour the conductivity decreases by several orders of magnitude (Figure 18).…”

Section: Deoopingmentioning

confidence: 98%

“…Also the importance of humidity has been observed, and actually in dry argon atmosphere the rate of the conductivity degradation is much smaller, as can be seen in Figure 18. The degradation mechanism has been studied through the use of in-situ optical spectroscopy [85,86]. The results clearly show that the degradation of the conductivity is due to dedoping of the polymer.…”

Section: Deoopingmentioning

confidence: 99%

“…One hypothesis is that the undoping process is driven by conformational changes of the polymer backbone [85,86]. This hypothesis is based on the physics of the thermochromic transition in the solid state.…”

Section: Deoopingmentioning

confidence: 99%

See 4 more Smart Citations

Processable Conducting Poly(3-Alkylthiopenes)

Gustafsson

Inganäs

Salaneck

et al. 1991

Conjugated Polymers

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ABSTRACf. The poly(3-alkylthiophenes) represent a new generation of conducting polymers, that exhibit both solution and melt processability. These properties open new possibilities for the utilization of conducting polymers in practical applications. Furtheonore, the solubility of these polymers enables the characterization of the physical and chemical structure in greater detail than hitherto have been possible. In this chapter we give a brief review of the synthetic routes to the poly(3-alkylthiophenes) as well as an overview of some of the recent results on the physical and chemical characterization of this class of materials. In this overview we include results on stability properties, transport properties, thermo-and solvatochromism. We also discuss some aspects of the utilization of the poly(3-alkylthiophenes) in applications.

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Section: Deoopingmentioning

confidence: 87%

Section: Deoopingmentioning

confidence: 95%

Section: Deoopingmentioning

confidence: 98%

Section: Deoopingmentioning

confidence: 99%

Section: Deoopingmentioning

confidence: 99%

See 3 more Smart Citations

Processable Conducting Poly(3-Alkylthiopenes)

Gustafsson

Inganäs

Salaneck

et al. 1991

Conjugated Polymers

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Electrically Conductive Polymers

Reynolds

Child

Gieselman

2000

Kirk-Othmer Encyclopedia of Chemical Technology

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An overview of the field of electrically conductive polymers is presented. The synthesis of conducting polymers is discussed with detailed sections describing polyacetylenes, polyphenylenes, polyheterocycles, poly(arylene vinylenes), and polyanilines. The preparations of conducting polymer blends, composites, and colloids are described. The concept of redox doping to form charge carriers on conjugated polymers and its effect on optical and electrical properties is given. The effect of polymer structure on electronic properties is demonstrated. The stabilities of conducting polymers are compared. A number of applications are outlined; these include charge storage batteries, conductive textiles, chemical biochemical sensors, electromagnetic shielding, antistatic coatings, gas separation membranes, electrochromism, and electroluminescence.

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Search for conducting doped polymers with great chemical stability: Regiospecific poly(3,3″‐dihexyl‐2,2′:5′,2″‐terthiophene)

1996

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Previous calculations have suggested that the formation and the stability of charge transfer bonds in doped polyconjugated systems may be maximized by a favored topology of the dopant molecule. The preferred site of attack is found where the steric hindrance is minimized. Following these principles, regiospecific poly(3,3"-dihexyl-2,2':5',2"-terthiophene) was synthesized and doped with FeC13. The time and temperature dependence of the dedoping process has been studied by the analysis ofthe doping induced infrared spectrum.This material in the doped state shows an extremelygreat stability (in air, even at relatively high temperatures) never previously reported for any other doped system.

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Thermal undoping in poly(3-alkylthiophenes)

Cited by 62 publications

References 25 publications

Processable Conducting Poly(3-Alkylthiopenes)

Processable Conducting Poly(3-Alkylthiopenes)

Electrically Conductive Polymers

Search for conducting doped polymers with great chemical stability: Regiospecific poly(3,3″‐dihexyl‐2,2′:5′,2″‐terthiophene)

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