Poly (3,4-ethylenedioxythiophene) (PEDOT) and poly (3,4-ethylenedioxythiophene)-few walled carbon nanotube (PEDOT-FWCNT) nanocomposite based thin films for Schottky diode application

Gupta, Bhavana; Mehta, M.; Melvin, Ambrose A.; Kamalakannan, R.; Dash, Sanjaya K.; Kamruddin, M.; Tyagi, A. K.

doi:10.1016/j.matchemphys.2014.06.032

Cited by 24 publications

(15 citation statements)

References 48 publications

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“…5 in the case of radiosynthesized PEDOT closely matches those earlier reported in the literature in the case of the chemically synthesized PEDOT polymers. 41,42 The diffraction peaks at about 381, 441, 641 and 781 originate from the aluminum support used in this work. More interestingly, the amorphous nature of the PEDOT is highlighted and confirmed from the diffraction peak at 2y B 241 which is a feature of interchain planar ring stacking.…”

Section: Structural and Morphological Characterizations Of Radiosynthmentioning

confidence: 99%

“…More interestingly, the amorphous nature of the PEDOT is highlighted and confirmed from the diffraction peak at 2y B 241 which is a feature of interchain planar ring stacking. 42,43 In order to investigate the morphology of the PEDOT polymers powders obtained after a 36 kGy irradiation of an EDOT-containing DCM solution and after solvent evaporation, SEM microscopy was used. SEM images recorded after deposition of the dried PEDOT polymers powder onto carbon tape adhered to aluminum mounts and gold coating are displayed on Fig.…”

Section: Structural and Morphological Characterizations Of Radiosynthmentioning

confidence: 99%

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An alternative radiolytic route for synthesizing conducting polymers in an organic solvent

et al. 2018

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Section: Structural and Morphological Characterizations Of Radiosynthmentioning

confidence: 99%

Section: Structural and Morphological Characterizations Of Radiosynthmentioning

confidence: 99%

An alternative radiolytic route for synthesizing conducting polymers in an organic solvent

et al. 2018

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“…Further, a mild peak at 25° can be discerned (Fig. 8, inset) which is characteristic of pure PEDOT and confirms its amorphous nature 40 . That peak appears for samples with higher concentration of polymer in composite, PEDOT/ZnO (1-3) and (1)(2)(3)(4)(5).…”

Section: Xrd Analysismentioning

confidence: 63%

Synthesis of PEDOT/ZnO Photocatalyst: Validation of Photocatalytic Activity by Degradation of Azo RR45 Dye Under Solar and UV-A Irradiation

Katančić

Šuka

Vrbat

et al. 2018

Chem.Biochem.Eng.Q.

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To study the photocatalytic efficiency of wastewater treatment processes, the nanocomposites of conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) and ZnO nanoparticles were prepared by in-situ synthesis. ZnO is an excellent photocatalyst under UV light, but due to high band gap, photons of visible light have insufficient energy to excite electrons from valence to conductive band, which limits its activity under visible light and therefore practical usage is limited. The PEDOT conductive polymer was used to increase the photocatalytic activity of ZnO since conductive polymers are known as efficient electron donor and good electron transporters upon visible-light excitation. Polymerization of pure PEDOT and PEDOT/ZnO nanocomposites was carried out at varying monomer:oxidant ratio (1:2; 1:3; 1:5) with the ammonium persulfate (APS) used as the oxidant. Samples were characterized by FTIR spectroscopy, XRD analysis, SEM microscopy, UV-Vis spectroscopy and TG analysis. Photocatalytic activity was assessed through removal of C.I. Reactive Red 45 (RR45) azo dye under simulated Solar and UV-A irradiation. Photocatalysis was monitored by measuring discoloration of RR45 using UV/Vis spectroscopy. The results indicate that very low concentration of PEDOT conductive polymer in PEDOT/ZnO nanocomposite can significantly contribute to the efficiency of the photocatalytic process during wastewater treatment.

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“…The vibrational bands observed around 1317 and 1524 cm −1 correspond to the C-C and C=C stretching of the quinoid structure and the ring stretching of the thiophene ring, respectively. The vibration bands 1188 and 1023 cm −1 are due to the C-O-C bond stretching in the ethylenedioxy group, respectively [14]. The absorption bands at 974, 823, and 673 cm −1 are assigned to the vibrational bands of the C-S bond in the thiophene ring [15].…”

Section: Ftir Analysismentioning

confidence: 99%

Charge carrier relaxation studies in poly (3, 4-ethylenedioxythiophene) nanofibers

Chutia

Kumar

2015

J Polym Res

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The electrical conductivity and carrier relaxation in poly (3, 4-ethylenedioxythiophene) (PEDOT) nanofibers have been studied over a wide range of frequency and temperature by means of impedance spectroscopy. High resolution transmission electron micrographs confirm the formation of nanofibers with average diameter of 14 nm. The linear increase of imaginary permittivity with decreasing frequency in the loglog plot of ε″ versus ω is attributed to the higher contribution of dc conductivity than that of the electrode polarization. The presence of single semicircle in the complex impedance ColeCole plot indicates the presence of single charge carrier relaxation mechanism. The perfect matching of the relaxation peak in Z″ and M″ vs. frequency at different temperature confirms the presence of Debye type relaxation. From the temperature dependent behavior of frequency exponent study it is confirmed that the charge transport takes place through correlated barrier hopping mechanism. Decrease of barrier height and increase of density of states with increasing dopant concentration can be corroborated with the conductivity enhancement.

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Poly (3,4-ethylenedioxythiophene) (PEDOT) and poly (3,4-ethylenedioxythiophene)-few walled carbon nanotube (PEDOT-FWCNT) nanocomposite based thin films for Schottky diode application

Cited by 24 publications

References 48 publications

An alternative radiolytic route for synthesizing conducting polymers in an organic solvent

An alternative radiolytic route for synthesizing conducting polymers in an organic solvent

Synthesis of PEDOT/ZnO Photocatalyst: Validation of Photocatalytic Activity by Degradation of Azo RR45 Dye Under Solar and UV-A Irradiation

Charge carrier relaxation studies in poly (3, 4-ethylenedioxythiophene) nanofibers

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