Charge transport properties of fully-sulfonated polyaniline

Lee, W.; Du, Gang; Long, S.M.; Epstein, Arthur J.; Shimizu, Shigeru; Saitoh, T.; Uzawa, Masami

doi:10.1016/s0379-6779(96)04156-2

Cited by 48 publications

(22 citation statements)

References 16 publications

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“…For the most conductive ones, TSA and CSA-PANI, the model described adequately the whole interval of temperature, and, for TSPP-PANI, the fitting works properly at more elevated temperatures as already observed in our previous reported work [2]. The characteristic temperature obtained for TSPP-PANI is close to the values for low conductivity undoped PANI and PANI blends [43,44] and those for TSA and CSA doping are well comparable with those found in [40]. The values of 0 suggest that the disorder is much higher in TSPP doped PANI nanotubes than CSA and TSA doped PANI nanotubes this is good agreement with the XRD data.…”

Section: Cyclic Voltammetry From the Cyclic Voltammograms Representesupporting

confidence: 88%

“…The parameter 0 is proportional to the inverse of localization length, assuming elevated values for highly localized polymers. This model is frequently applied to sulfonated doped polymers [40,41] and known as quasi-1D Variable Range Hopping (VRH) [42]. By fitting the data with (1), as shown in Figure 7(b), by the continuous line, we determined the characteristic temperature 0 for the three doped polymers.…”

Section: Cyclic Voltammetry From the Cyclic Voltammograms Representementioning

confidence: 99%

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Electrical Conductivity Studies of Polyaniline Nanotubes Doped with Different Sulfonic Acids

Khalid

Tumelero

Brandt

et al. 2013

Indian Journal of Materials Science

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Self-assembled polyaniline (PANI) nanotubes were prepared in the presence of three different sulfonic acids as dopant, namely, p-toluenesulfonic acid, camphorsulfonic acid, and tetrakis(4-sulfonatophenyl)porphyrin, by oxidative polymerization using ammonium peroxydisulfate as the oxidant. The morphology of the PANI nanotubes was determined by SEM and TEM and the electrical conductivity was measured as a function of temperature. The PANI nanotubes were also characterized by FTIR, XRD, UV-Vis, and cyclic voltammetry. We have found that the dopants had a noteworthy effect on the electrical conductivity whithout significant changes in the morphology of the PANI nanotubes.

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Section: Cyclic Voltammetry From the Cyclic Voltammograms Representesupporting

confidence: 88%

Section: Cyclic Voltammetry From the Cyclic Voltammograms Representementioning

confidence: 99%

Electrical Conductivity Studies of Polyaniline Nanotubes Doped with Different Sulfonic Acids

Khalid

Tumelero

Brandt

et al. 2013

Indian Journal of Materials Science

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“…Several relaxation processes can cause the shortening of T 2 , and hence, the broadening of an EPR line, one of them being the spin-lattice relaxation characterized by a time constant (T 1 ). 52,53 The narrower linewidth in polyaniline complexes [PANI-PSSA, POP-PSSA, and P2E-PSSA] compared with that of their salts [PANI, POP, and P2E] can be attributed to the lower degree of structural disorder, and the oxygen The substituted polyaniline have side chain effect by the alkyl group (OC 2 H 5 or OOC 2 H 5 ) and the OSO 3 H group on the polyelectrolyte template, with higher density 56 in their molecules complexes to form a different crystal structure. The EPR spectra also give evidence for the existence of highly mobile radical cations or polarons in PANI-PSSA, POP-PSSA, and P2E-PSSA complexes.…”

Section: Solubilitymentioning

confidence: 99%

Electrochemical behaviors of polyaniline–poly(styrene‐sulfonic acid) complexes and related films

Lin

Chou

Chen

et al. 2006

J of Applied Polymer Sci

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This research focuses on the syntheses of polyaniline with poly(styrenesulfonic acid) and their electrochemical behavior, including absorbance behavior and electrochemical response time of polyaniline-poly(styrenesulfonic acid) [PANI-PSSA]. The complexes PANI-PSSA were prepared by electrochemical polymerization of monomer (aniline) with PSSA, using indium-tin oxide (ITO) as working electrode in 1M HCl solution. Polyaniline (PANI), poly(o-phenetidine)-poly(styrenesulfonic acid) [POP-PSSA], and poly(2-ethylaniline)-poly(styrenesulfonic acid) [P2E-PSSA] also were prepared by electrochemical polymerization and to be the reference samples. The products were characterized by IR, VIS, EPR, water solubility, elemental analysis, conductivity, SEM, and TEM. IR spectral studies shows that the structure of PANI-PSSA complexes is similar to that of polyaniline. EPR and visible spectra indicate the formation of polarons. The morphology of the blend were investigated by SEM and TEM, which indicate the conducting component and electrically conductive property of the polymer complexes. Elemental analysis results show that PANI-PSSA has a nitrogen to sulfur ratio (N/S) of 38%, lower than that for POP-PSSA (52%) and P2E-PSSA (41%). Conductivity of the complexes are around 10 Ϫ2 S/cm, solubility of PANI-PSSA in water is 3.1 g/L. The UVVis. absorbance spectra of the hybrid organic/inorganic complementary electro-chromic device (ECD), comprising a polyaniline-poly(styrenesulfonic acid) [PANI-PSSA] complexes and tungsten oxide (WO 3 ) thin film coupled in combination with a polymer electrolyte poly(2-acrylamido-2-methyl-propane-sulfonic acid) [PAMPSA]. PANI-PSSA microstructure surface images have been studied by AFM. By applying a potential of ϳ3.0 V across the two external ITO contacts, we are able to modulate the light absorption also in the UV-Vis region (200 -900 nm) wavelength region. For example, the absorption changes from 1.20 to 0.6 at 720 nm. The complexes PANI-PSSA, POP-PSSA, and P2E-PSSA were prepared by electrochemical polymerization of monomer (aniline, o-phenetidine, or 2-ethylaniline) with poly(styrenesulfonic acid), using ITO as working electrode in 1M HCl solution, respectively. UV-Vis spectra measurements shows the evidences for the dopped polyaniline system to be a highly electrochemical response time, recorded at the temperature 298 K, and the results were further analyzed on the basis of the color-discolor model, which is a typical of protontation systems. Under the reaction time (3 s) and monomer (aniline, o-phenetidine, 2-ethylaniline) concentration (0.6M) with PSSA (0.15M), the best electrochemical color and discolor time of the PANI-PSSA is slower than POP-PSSA complexes (125/125 ms; thickness, 3.00 m) and P2E-PSSA complexes. Under the same thickness (10 m), the best electrochemical color and discolor time of the PANI-PSSA complexes is 1500/750 ms, that is much slower than P2E-PSSA complexes (750/500 ms) and POP-PSSA complexes (500/250 ms). In film growing rate, the PANI-PSSA complexes (0.54 m/s) are...

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“…SPAN synthesis and electrical behavior were investigated by different groups [13,14,15] and Onoda et al [16] reported the application of SPAN to OLEDs. SPAN makes ohmic contact with different metals [17] and for this reason it was proposed as hole injection material [18].…”

Section: Introductionmentioning

confidence: 99%

Efficient organic light-emitting diodes with fluorine-doped tin-oxide anode and electrochemically synthesized sulfonated polyaniline as hole transport layer

Benvenho¹,

Lessmann²,

Hümmelgen³

et al. 2005

Braz. J. Phys.

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In this work we report effi ciency measurements on light-emitting diodes with electrochemically synthesized sulfonated polyaniline as hole transport layer. The anode used in our devices is fluorine-doped tin oxide, the blocking layer is electrochemically synthesized poly(9,9-dioctyl-1,4-fluorenylenevinylene) and the electron transporting material and emitter is tris-(8-hydroxyquinoline) aluminum. Sulfonated polyaniline based devices presented effi ciency of 0.79 cd/A.

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Charge transport properties of fully-sulfonated polyaniline

Cited by 48 publications

References 16 publications

Electrical Conductivity Studies of Polyaniline Nanotubes Doped with Different Sulfonic Acids

Electrical Conductivity Studies of Polyaniline Nanotubes Doped with Different Sulfonic Acids

Electrochemical behaviors of polyaniline–poly(styrene‐sulfonic acid) complexes and related films

Efficient organic light-emitting diodes with fluorine-doped tin-oxide anode and electrochemically synthesized sulfonated polyaniline as hole transport layer

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