Synthesis and characterization of poly(3-hexylthiophene): improvement of regioregularity and energy band gap

Ansari, Muhammad Azhar; Shaikh, Melad; Kandemi̇rlı, Fatma; Malik, Muhammad Imran

doi:10.1039/c8ra00555a

Cited by 57 publications

(53 citation statements)

References 39 publications

(37 reference statements)

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“…Peak at 1107.06 cm -1 show the presence of C-H aromatic ring. The stretching vibration of the thiophene ring were detected at 860.16 cm -1 these results are agree with [4][5][6].…”

Section: Results and Discussion 1-fourier Transform Infrared Radiatiosupporting

confidence: 83%

Synthesis and Characterization of P3HT Metal Nanoparticles Hybrid Junction

mustafa

Abdullah

2019

IJP

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In this work the fabrication and characterization of poly(3-hexylthiophene) P3HT-metallic nanoparticles (Ag, Al). Pulsed Laser Ablation (PLA) technique was used to synthesis the nanoparticles in liquid. The Fourier Transformer Infrared (FTIR) for all samples indicate the chemical interaction between the polymer and the nanoparticles. Scanning Electron Microscopic (SEM) analysis showed the particle size for P3HT-AgNps samples between 44.50 nanometers as well the spherical structure. While for P3HT-AlNps samples was flakes shape. Energy Dispersive X-ray (EDX) spectra show the existing of amount of metallic nanoparticles.

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“…Peak at 1107.06 cm -1 show the presence of C-H aromatic ring. The stretching vibration of the thiophene ring were detected at 860.16 cm -1 these results are agree with [4][5][6].…”

Section: Results and Discussion 1-fourier Transform Infrared Radiatiosupporting

confidence: 83%

Synthesis and Characterization of P3HT Metal Nanoparticles Hybrid Junction

mustafa

Abdullah

2019

IJP

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“…Moreover, the regioregular sample also shows a higher value of V OC , according to its lower HOMO level energy. The obtained results are in good agreement with the findings reported by Malik et al in a recent work, [38] in which the importance of structural regioregularity in the donor polymer is evidenced. The authors observed that highly regioregular ED-polymers show an enhanced mobility of excitons and a compressed bandgap, which can improve the absorption efficiency of the solar spectrum.…”

Section: Photovoltaic Propertiessupporting

confidence: 93%

Effect of Photocrosslinking of D‐A Thiophene Copolymers on the Performance of Single‐Material Solar Cells

Lanzi

Salatelli

Marinelli

et al. 2019

Macro Chemistry & Physics

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Side‐chain C60‐fullerene functionalized alkylthiophene copolymers with different regioregularity and fullerene content are successfully synthesized using a simple and straightforward post‐polymerization functionalization procedure based on a Grignard coupling reaction. The products are employed as single materials in photoactive layers of organic photovoltaic solar cells. The use of double‐cable polymers allows an enhanced control on the nanomorphology of the active blend, reducing the phase‐segregation phenomena as well as the macroscale separation between the electron acceptor and donor components. With the insertion of a thin layer of gold nanoparticles between buffer and active layer of the cells, a conversion efficiency of 5.68% is obtained. Moreover, an increased stability over time is achieved when the copolymers are photocrosslinked immediately after the annealing procedure, leading to acceptable efficiencies even after 80 h of accelerated ageing, a key feature for widespread applicability of the prepared devices.

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“…Figure 1 a shows the main IR bands of P3HT, which are peaked at 723, 810, 1032, 1165, 1462, 1510, 1735, 2854, 2924 and 3113 cm −1 , they being assigned to the following vibrational modes: rocking CH 2 , out of plane bending C-S in thiophene ring α, α’ disubstituted, aromatic C-H stretching, thiophene ring, asymmetrical C=C in thiophene ring, C=O stretching, symmetric C-H stretching in CH 2 moieties, C-H in hexyl group and sp 2 C-H stretching in aromatic compounds, respectively [ 8 , 21 ]. The IR bands at 617 and 1381 cm −1 were attributed to the vibrational modes of the distorted parts of polymer and the deformation of -CH 3 group belonging to the defects present in the P3HT macromolecular chains, respectively [ 22 , 23 ].…”

Section: Resultsmentioning

confidence: 99%

Anisotropic Photoluminescence of Poly(3-hexyl thiophene) and Their Composites with Single-Walled Carbon Nanotubes Highly Separated in Metallic and Semiconducting Tubes

et al. 2021

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In this work, the effect of the single-walled carbon nanotubes (SWNTs) as the mixtures of metallic and semiconducting tubes (M + S-SWNTs) as well as highly separated semiconducting (S-SWNTs) and metallic (M-SWNTs) tubes on the photoluminescence (PL) of poly(3-hexyl thiophene) (P3HT) was reported. Two methods were used to prepare such composites, that is, the chemical interaction of the two constituents and the electrochemical polymerization of the 3-hexyl thiophene onto the rough Au supports modified with carbon nanotubes (CNTs). The measurements of the anisotropic PL of these composites have highlighted a significant diminution of the angle of the binding of the P3HT films electrochemical synthetized onto Au electrodes covered with M + S-SWNTs. This change was attributed to metallic tubes, as was demonstrated using the anisotropic PL measurements carried out on the P3HT/M-SWNTs and P3HT/S-SWNTs composites. Small variations in the angle of the binding were reported in the case of the composites prepared by chemical interaction of the two constituents. The proposed mechanism to explain this behavior took into account the functionalization process of CNTs with P3HT. The experimental arguments of the functionalization process of CNTs with P3HT were shown by the UV-VIS-NIR and FTIR spectroscopy as well as surface-enhanced Raman scattering (SERS). A PL quenching process of P3HT induced both in the presence of S-SWNTs and M-SWNTs was reported, too. This process origins in the various de-excitation pathways which can be developed considering the energy levels diagram of the two constituents of each studied composite.

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Synthesis and characterization of poly(3-hexylthiophene): improvement of regioregularity and energy band gap

Abstract: The regioregularity and band gap of P3HT, an organic solar cell donor polymer, were improved. Oxidative coupling enhanced regioregularity, voltammetric p-doping broadened the optical absorption band and a molar mass increase reduced the band gap.

Cited by 57 publications

References 39 publications

Synthesis and Characterization of P3HT Metal Nanoparticles Hybrid Junction

Synthesis and Characterization of P3HT Metal Nanoparticles Hybrid Junction

Effect of Photocrosslinking of D‐A Thiophene Copolymers on the Performance of Single‐Material Solar Cells

Anisotropic Photoluminescence of Poly(3-hexyl thiophene) and Their Composites with Single-Walled Carbon Nanotubes Highly Separated in Metallic and Semiconducting Tubes

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