Fabrication, Doping and Characterization of Polyaniline and Metal Oxides: Dye Sensitized Solar Cells

Ameen, Sadia; Akhtar, M. Shaheer; Kim, Young Soon; Shin, Hyung‐Shik

doi:10.5772/19889

Cited by 11 publications

(6 citation statements)

References 123 publications

(75 reference statements)

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“…The conducting nature of the nanocomposites system can be attributed to the selective interactions between TiO 2 and the quinoid ring of Pani, which facilitates charge transfer from the quinoid ring to TiO 2 via a highly reactive imine group. 23 The DC electrical conductivity of the s-Pani@p-TiO 2 and s-Pani@m-TiO 2 nanocomposites were 0.024 and 0.032 S/cm, respectively (Fig. 6).…”

Section: Electrical Conductivity Of S-pani@p-tio 2 and S-pani@m-timentioning

confidence: 95%

Electrically conductive polyaniline sensitized defective-TiO₂for improved visible light photocatalytic and photoelectrochemical performance: a synergistic effect

2015

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nanocomposites were prepared by the in-situ oxidative polymerization of aniline in the presence of TiO 2 (p-TiO 2 and m-TiO 2 ) nanoparticles followed by sulfonation with fuming sulfuric acid. Defect-induced TiO 2 (m-TiO 2 ) nanoparticles were obtained by an electron beam (EB) treatment of commercial TiO 2 (p-TiO 2 ) nanoparticles. The resulting s-Pani@p-TiO 2 and s-Pani@m-TiO 2 nanocomposites were characterized by UV-visible diffuse absorbance spectroscopy, photoluminescence spectroscopy, transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. Polyaniline (Pani) was dispersed uniformly over the defective m-TiO 2 surface with intimate contact on the interface to act cooperatively with the defects introduced deliberately to achieve remarkably enhanced properties. The s-Pani@m-TiO 2 nanocomposite showed better photocatalytic activity and photoelectrochemical performance than s-Pani@p-TiO 2 under visible light irradiation, which was attributed partly to the sensitizing effect of Pani, the narrowed band gap of m-TiO 2 and the effective interfacial interaction between Pani and m-TiO 2 . The electrical conductivity measured using a four-point probe revealed s-Pani@m-TiO 2 to have much higher conductivity than s-Pani@p-TiO 2 . Therefore, s-Pani@m-TiO 2 may be used for a wide range of applications owing to its higher charge mobility and high photocatalytic activity. The proposed methodology can also be a potential route for the development of nanocomposites via EB treatment and can be commercialized.

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Section: Electrical Conductivity Of S-pani@p-tio 2 and S-pani@m-timentioning

confidence: 95%

Electrically conductive polyaniline sensitized defective-TiO₂for improved visible light photocatalytic and photoelectrochemical performance: a synergistic effect

2015

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“…Thus, replacing Pt with abundant, low-cost materials has been a major effort to lower CE costs [10]. There have been recent reports of materials that shows improved electrocatalytic activity, power conversion efficiency, and long term cyclic stability in the DSSC, including conducting polymer [11][12][13], transition metal compounds and their composites [14][15][16], altogether with carbon derivative [17][18][19][20][21]. The band gap of the binary metal chalcogenides A 2 B 3 (A = As, Sb, and Bi; B = S, Se, and Te) V-VI group elements is in vicinity of 1.3 eV, making them appropriate so as to use in a various applications such as photovoltaic conversion, IR spectroscopy, ornamental coating, and other similar fields.…”

Section: Introductionmentioning

confidence: 99%

Bismuth sulfide/carbon black: as a pt free and efficient counter electrode in DSSC

Shaikh,

Rajput,

Kale

2024

Phys. Scr.

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A hydrothermal process has been employed to synthesis Bi2S3 microstructures at a different reaction temperature from 140-180 0C. The effects of reaction temperature on structural, morphological and optical properties of deposited Bi2S3 material have been investigated systematically. The XRD patterns show the formation of the orthorhombic crystal structure. FESEM images revealed the formation of 3D microstructures of Bi2S3, with respect to the reaction temperature. Further, the carbon black-Bi2S3 composites were used as a counter electrode for efficient dye-sensitized solar cell (DSSC) application. Current density-voltage characteristics of DSSC showed the correlation between the photoconversion efficiency and reaction temperature. The maximum photoelectric conversion efficiency reached 4.37 % along with short-circuit current density of 10.29 mA/cm2 and open- circuit potential of 0.70 V was observed for carbon black-Bi2S3 film for 1:1 ratio.

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“…The oxidized dye molecule will be regenerated by redox agent in electrolyte, i.e. I3 -/Iredox couple [5]. Oxidized redox agent will be reduced back on the surface of counter electrode forming a closed electrical loop.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Polyaniline Emeraldine Salt for Conducting-Polymer-Activated Counter Electrode in Dye Sensitized Solar Cell (DSSC) using Rapid-Mixing Polymerization at Various Temperature

Amalina

Suendo

Reza

et al. 2019

Bull. Chem. React. Eng. Catal.

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Polyaniline Emeraldine Salt (PANI ES) as a conductive polymer has been used as a Pt-free counter electrode materials in DSSC. In this study, polymerization temperature was varied at relatively high temperature from 308 to 348 K with respect to the standard low polymerization temperature at 273 K. The synthesis held in varied high-temperature to study the effect of synthesis condition resulted to the performance as counter electrode in DSSC. The effect of high-temperature synthesis condition gives interesting results, the FTIR-ATR spectra show the presence of vibrational modes of phenazine structure obtained at high polymerization temperature, indicate the changing in the chain geometry. Raman Spectroscopy shows the decrease of the I1194/I1623 intensity ratio that can be interpreted that the degree-of-freedom of C-H bond bending mode decreases in the benzenoid ring, while the stretching mode degree-of-freedom along the chain is preserved or increased. The electrical conductivity profile has changed from metal-like at low-temperature into a semiconductor-like profile at high-temperature. Scanning Electron Microscope images reveals that a change in the morphology of PANI ES with temperature. At low-temperature (273 K) the morphology has a globular shape, while at high-temperature it tends to form nanorod structure. DSSC device with highest efficiency is attained for PANI ES polymerized at 273 K (1.91%) due to its high conductivity. The lowest efficiency is observed in device using PANI ES synthesized at 328 K (1.15%) due to its low conductivity due to the formation of phenazine structure. Copyright © 2019 BCREC Group. All rights reserved

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Fabrication, Doping and Characterization of Polyaniline and Metal Oxides: Dye Sensitized Solar Cells

Cited by 11 publications

References 123 publications

Electrically conductive polyaniline sensitized defective-TiO₂for improved visible light photocatalytic and photoelectrochemical performance: a synergistic effect

Electrically conductive polyaniline sensitized defective-TiO₂for improved visible light photocatalytic and photoelectrochemical performance: a synergistic effect

Bismuth sulfide/carbon black: as a pt free and efficient counter electrode in DSSC

Preparation of Polyaniline Emeraldine Salt for Conducting-Polymer-Activated Counter Electrode in Dye Sensitized Solar Cell (DSSC) using Rapid-Mixing Polymerization at Various Temperature

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Fabrication, Doping and Characterization of Polyaniline and Metal Oxides: Dye Sensitized Solar Cells

Cited by 11 publications

References 123 publications

Electrically conductive polyaniline sensitized defective-TiO2for improved visible light photocatalytic and photoelectrochemical performance: a synergistic effect

Electrically conductive polyaniline sensitized defective-TiO2for improved visible light photocatalytic and photoelectrochemical performance: a synergistic effect

Bismuth sulfide/carbon black: as a pt free and efficient counter electrode in DSSC

Preparation of Polyaniline Emeraldine Salt for Conducting-Polymer-Activated Counter Electrode in Dye Sensitized Solar Cell (DSSC) using Rapid-Mixing Polymerization at Various Temperature

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Product

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Electrically conductive polyaniline sensitized defective-TiO₂for improved visible light photocatalytic and photoelectrochemical performance: a synergistic effect

Electrically conductive polyaniline sensitized defective-TiO₂for improved visible light photocatalytic and photoelectrochemical performance: a synergistic effect