Optimization of synthesis conditions of polypyrrole from aqueous solutions

Maddison, D.S.; Unsworth, J.

doi:10.1016/0379-6779(89)90640-1

Cited by 87 publications

(18 citation statements)

References 11 publications

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“…Close inspection of Fig-ure 7 indicates that the Arrhenius model does not fi t the data well, although a bi-dimensional conduction model (n = 2 -3) provides the best fi t to our resistivity data. The limited temperature range of our data does not allow for unambiguous hopping dimensionality conclusions as determined by others for doped low conductivity polymers [35,36]. Since π-π interactions are expected with small backbone torsion angles, bi-dimensional conduction is expected as intermolecular interactions can no longer be completely neglected.…”

Section: Conductivitymentioning

confidence: 90%

Defect contributions to conductivity in poly(3‐hexylthiophene)?

Caruso

Feng

Losovyj

et al. 2006

Physica Status Solidi (b)

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We fi nd evidence for a gradual change in the electronic properties of spin coated poly(3-hexylthiophene) thin fi lms with temperature. The conduction properties appears to be mediated by hopping conduction dominated by a low density of defects states within the highest occupied molecular orbital to lowest unoc cupied molecular orbital gap, not by a change in band gap. The photoemission and transport measure ments indicate a loss of charge mobility or carrier concentration occurs with decreasing temperature, while the molecular confi guration (through chain conjugation) also changes with temperature. The defects states identifi ed by photoemission (-1.7 eV) as well as others contributing to the transport properties are believed to be very heterogeneous along the polymer backbone.

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Section: Conductivitymentioning

confidence: 90%

Defect contributions to conductivity in poly(3‐hexylthiophene)?

Caruso

Feng

Losovyj

et al. 2006

Physica Status Solidi (b)

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“…In the potential-controlled method, the potential should be controlled no higher than 0.75 V versus SCE (usually at 0.65-0.70 V vs. SCE) for the electropolymerization of PPy. For the electropolymerization with constant current, Maddison et al [30]. studied the effect of current and found that the PPy film with highest conductivity was obtained at 2.8 mA/cm 2 .…”

Section: Electrochemical Preparation Of Conducting Polypyrrolementioning

confidence: 98%

Conducting Polymers

Li¹

2015

Lecture Notes in Chemistry

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“…1, appeared fairly smooth. In the preparation of CPs, synthesis parameters such as the dopant anion, pH of the solution, temperature of reaction, method of synthesis, and nature of solvent can affect the final morphology of CPs [45][46][47][48][49][50]. The surface morphology of CPs plays an important role in their electrochemical responses and doping-undoping behavior [51].…”

Section: Scanning Electron Microscopy (Sem)mentioning

confidence: 99%