Polyaniline: Doping and Functionalization with Single Walled Carbon Nanotubes for Photovoltaic and Photocatalytic Application

Saoudi, Mariem; Zaidi, B.; Alotaibi, Abdullah A.; Althobaiti, M. G.; Alosime, Eid M.; Ajjel, Ridha

doi:10.3390/polym13162595

Cited by 11 publications

(9 citation statements)

References 73 publications

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“…Using Equation (1), the V oc is estimated at nearly 1.25 V, and using the Scharber diagram, PCE is estimated at 4–5% ( Figure 16 (2)). This is in good accordance with our previous PL results showing both the quenching effect and the total absence of luminescence in the visible region [ 116 ].…”

Section: Pani/swcnt Nanocompositessupporting

confidence: 93%

“…Following the same procedure, PANI, known by a number of oxidation degrees, is also functionalized with CNTs. The starting material, the emeraldine base (PANIEB purity 99.99%; macromolecular mass Mn > 15,000), is first doped with sulfonic acid and then functionalized with SWCNTs in the dimethylformamide (DMF) solvent [ 116 ]. The sulfonic acid doping procedure used in this case is described by MacDiarmid et al [ 117 ].…”

Section: Pani/swcnt Nanocompositesmentioning

confidence: 99%

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Polymer/Carbon Nanotube Based Nanocomposites for Photovoltaic Application: Functionalization, Structural, and Optical Properties

et al. 2022

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We present a systematic review of nanostructured organic materials, including synthesis methods, functionalization, and applications. First, we report the chemical and physical procedures used for preparing the polymer/carbon nanotube composites described in the literature over the last decade. We compare the properties of different polymer-based prototypes of organic nanocomposites functionalized with carbon nanotubes. Theoretical and experimental vibrational investigations provide evidence of the molecular structure describing the interaction between both components, showing that the allowed amount of carbon nanotubes and their dispersion states differ across polymers. Moreover, the nature of the solvent used in the preparation has a significant impact on the dispersion process. The integration of these materials in photovoltaic applications is discussed, where the impact of nanoparticles is evidenced through the correlation between experimental analyses and theoretical approaches based on density functional theory. Alterations in optical properties, evaluated from the absorption and luminescence process, are coherent with the solar spectrum, and a good distribution of donor/acceptor interpenetration was observed. In all cases, it was demonstrated that the performance improvement is physically related to the charge transfer from the organic matrix to the nanoparticles.

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Section: Pani/swcnt Nanocompositessupporting

confidence: 93%

Section: Pani/swcnt Nanocompositesmentioning

confidence: 99%

Polymer/Carbon Nanotube Based Nanocomposites for Photovoltaic Application: Functionalization, Structural, and Optical Properties

et al. 2022

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“…The optical band gap of pure PANI film was calculated to be 2.6 eV. The bandgap of PANI is in the range of 2.6 eV–3.75 eV, according to the literatures [39,42,101–102] . The direct bandgap calculated for all the samples using the Tauc relation is given in Table 4.…”

Section: Resultsmentioning

confidence: 99%

“…The bandgap of PANI is in the range of 2.6 eV-3.75 eV, according to the literatures. [39,42,[101][102] The direct bandgap calculated for all the samples using the Tauc relation is given in Table 4. It is observed that as the doping concentration of MWCNT increases, the bandgap decreases.…”

Section: Uv-vis Spectroscopymentioning

confidence: 99%

The synergistic impact of multi walled carbon nanotubes on microstructural, morphological, and optical properties of polyaniline films

Mathew,

Radhakrishnan,

Pragash

et al. 2024

ChemistrySelect

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Nanocomposite of polyaniline (PANI) and multi walled carbon nanotube (MWCNT) was synthesised by ex‐situ solution mixing process in the N‐Methyl‐2‐Pyrrolidinone (NMP) solvent medium by varying the concentration of MWCNT in the PANI matrix. PANI‐MWCNT composite films were prepared by the drop casting method. The morphology, structure and chemical composition of PANI and PANI‐MWCNT nanocomposites were characterised by scanning electron microscopy (SEM), transmission electron microscopy (TEM), x‐ray diffraction (XRD), and Fourier transform infrared spectroscopy (FT‐IR) spectra. The experimental findings suggested a favourable synergy between PANI and MWCNTs. PANI‐MWCNT nanocomposite formed as randomly oriented nanofibrous clusters was confirmed, and the bandgap of the composites was found to be gradually decreased with the increase in concentration of MWCNT in the PANI matrix. The calculation of crystallinity index, crystallite size, average d‐spacing, dislocation density, lattice strain, and inter chain separation of the samples were conducted by XRD analysis. When the MWCNT concentration increased from 0.05 % w/v to 0.5 % w/v, a rise in the degree of crystallinity from 3.39 % to 52.46 %, dislocation density from 0.03315×10−3(nm−2)to 0.07133×10−3 (nm−2) and lattice strain from 8.6821×10−3 to 12.9843×10−3, accompanied by a reduction in both crystallite size and inter‐chain separation were observed .The microcrystalline behaviour and crystalline orientation of the PANI‐MWCNT composites were correlated with the bandgap studies. The composite formation improved the thermal stability of PANI. The co‐relation between the crystallinity parameters and fine tuning of optical bandgap and the control over the defect levels were done in this study. This synergy suggests that these composites are suitable candidates for linear and nonlinear optical (NLO) applications.

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“…Among these materials, polyaniline (PANI) and poly(N-vinyl carbazole) PVK are largely studied for their excellent properties [4,5,6], especially the electron excess related to the nitrogen atom present in both materials. In our previous works [6,7,8,9], we demonstrated that these materials could be functionalized with lower concentration single-walled carbon nanotubes (SWCNTs). For both PANI and PVK, the exchange process with SWCNTs is governed by a covalent functionalization and leads to a charge transfer from the polymeric matrix to the SWCNTs.…”

Section: Introductionmentioning

confidence: 99%

DFT modeling of new composite based on PANI/PVK functionalized With single-walled carbon nanotubes for optoelectronic applications

Boubaker Zaidi

2024

IJNeaM

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We present a comparative experimental and theoretical study of the vibrational, optical, and electronic properties of polyaniline at both emeraladine leuco-emeraldine forms and PVK. Our objective is first to select the appropriate form of PANI to be linked with PVK to form a hybrid polymer matrix. Then, on the basis of quantum chemical calculations, we present a theoretical study of a hybrid composite PANI/PVK functionalized with lower radius (5, 5) chiral single-walled carbon nanotubes (SWCNTs). The relationship structure-properties of the resulting nano-composite are proved based on the conformational and optical study made from Density functional theory (DFT) and time-dependent density functional theory (TD-DFT) using B3LYP method with 6-31-G(d) basis set. First, it has been demonstrated that the resulting interaction between PANI and PVK leads to more advantageous properties, such as good optical absorption compatibility with the solar emission spectrum. It has also been found that after the incorporation of SWCNTs into the matrix of PANI/PVK hybrid polymer, a good organization of SWCNTs via π-staking interaction is imposed by polyaniline sequences. However, PVK moieties are grafted on the sidewalls of SWCNTs. Finally, the electronic structure of the resulting hybrid nano-composite PANI/PVK/SWCNTs was carried out with the use of different electrodes on both sides.

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Polyaniline: Doping and Functionalization with Single Walled Carbon Nanotubes for Photovoltaic and Photocatalytic Application

Cited by 11 publications

References 73 publications

Polymer/Carbon Nanotube Based Nanocomposites for Photovoltaic Application: Functionalization, Structural, and Optical Properties

Polymer/Carbon Nanotube Based Nanocomposites for Photovoltaic Application: Functionalization, Structural, and Optical Properties

The synergistic impact of multi walled carbon nanotubes on microstructural, morphological, and optical properties of polyaniline films

DFT modeling of new composite based on PANI/PVK functionalized With single-walled carbon nanotubes for optoelectronic applications

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