Preparation and characterization of quantum dot doped polyaniline photoactive film for organic solar cell application

Shanmugasundaram, Esakkimuthu; Ganesan, Vigneshkumar; Narayanan, Vimalasruthi; Perumalsamy, M.; Kuppu, Sakthi Velu; Guruviah, Paruthimal Kalaignan; Stalin, T.

doi:10.1016/j.cplett.2021.138517

Cited by 10 publications

(8 citation statements)

References 44 publications

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“…These peaks correspond to the charge transfer processes of the Co 3 O 4 spinel structure, specifically the O 2– –Co 2+ and O 2– –Co 3+ transitions . Meanwhile, Figure b shows the CQD’s two absorption peaks at 277 and 356 nm, which are attributed to the π–π* transition (C=C bond) and n−π* transition (C=O bond), respectively . When Co 3 O 4 and CQD are combined (Figure c), their absorption peaks are shifted to 303 and 510 nm.…”

Section: Resultsmentioning

confidence: 98%

“…43 In previous research, conducting polymers such as polyaniline, polypyrrole, and polythiophene have been combined with ascorbic acid-derived CQD for their electrochemical and photophysical properties in organic solar cell applications. 44,45 In this work, we used an ascorbic-acid-derived CQD to improve the optical and electrical properties of Co 3 O 4 . We achieved this by using a one-pot hydrothermal method to produce the Co…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, TiO 2 -doped ascorbic acid-derived CQD is utilized as a photocatalyst for dye degradation . In previous research, conducting polymers such as polyaniline, polypyrrole, and polythiophene have been combined with ascorbic acid-derived CQD for their electrochemical and photophysical properties in organic solar cell applications. , …”

Section: Introductionmentioning

confidence: 99%

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Dual Applications of Cobalt-Oxide-Grafted Carbon Quantum Dot Nanocomposite for Two Electrode Asymmetric Supercapacitors and Photocatalytic Behavior

Shanmugasundaram,

Vellaisamy,

Ganesan

et al. 2024

ACS Omega

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Carbon materials, such as graphene, carbon nanotubes, and quantum-dot-doped metal oxides, are highly attractive for energy storage and environmental applications. This is due to their large surface area and efficient optical and electrochemical activity. In this particular study, a composite material of cobalt oxide and carbon quantum dots (Co 3 O 4 − CQD) was prepared using cobalt nitrate and ascorbic acid (carbon source) through a simple one-pot hydrothermal method. The properties of the composite material, including the functional groups, composition, surface area, and surface morphology, were evaluated by using various methods such as ultraviolet, Fourier transform infrared, X-ray diffraction, Raman, X-ray photoelectron spectroscopy, Brunauer−Emmett−Teller, scanning electron microscopy, and transmission electron microscopy analysis. The electrochemical performance of the Co 3 O 4 −CQD composite has been studied using a three-electrode system. The results show that at 1 A g −1 , the composite delivers a higher capacitance of 1209 F g −1 . The asymmetric supercapacitor (Co 3 O 4 −CQD//AC) provided 13.88 W h kg −1 energy and 684.65 W kg −1 power density with a 96% capacitance retention. The Co 3 O 4 −CQD composite also demonstrated excellent photocatalytic activity (90% in 60 min) for the degradation of methylene blue dye under UV irradiation, which is higher than that of pristine Co 3 O 4 and CQD. This demonstrates that the Co 3 O 4 −CQD composite is a promising material for commercial energy storage and environmental applications.

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Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dual Applications of Cobalt-Oxide-Grafted Carbon Quantum Dot Nanocomposite for Two Electrode Asymmetric Supercapacitors and Photocatalytic Behavior

Shanmugasundaram,

Vellaisamy,

Ganesan

et al. 2024

ACS Omega

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“…Among these, UC-CQDs have some unique qualities, like being less poisonous, hydrophilic, economical, and biocompatible. For this reason, in our earlier work, 23 we used the electro-polymerization process to create UC-CQDs using PANI, which is generated from ascorbic acid. We observed that the produced PANI-CQD material exhibits significant optical and conductive activity and is a good donor for OSCs.…”

Section: Introductionmentioning

confidence: 99%

Heteroatom (boron, nitrogen, and fluorine) quantum dot-doped polyaniline-photoactive film preparation and characterization for organic solar cell applications

et al. 2023

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“…Examples of donor units are thiophene (T), selenophene (S) and furan or their structural derivatives. The D-A-D systems have proven themselves essential in the development of organic photovoltaics and so it will be necessary to carry out studies on them in order to predict their optoelectronic behaviour [35][36][37]. Çakal et al, on their journey to understanding the effect of D units on the opto-electrical characteristics of a monomer and subsequently the polymer, achieved the synthesis and characterization of 5-(2-ethylhexyl)-1,3-di (furan-2-yl)-4H-thieno [3,4-c]pyrrole-4,6(5H)-dione (FTPF) and 5-(2-ethylhexyl)-1,3-di (selenophen-2-yl)-4H-thieno [3,4-c]pyrrole-4,6(5H)-dione (STPS), which are furanyl and selenophenyl based D-A-D systems, respectively [35].…”

Section: Introductionmentioning

confidence: 99%

Understanding the Electronic Interactions, Vertical Excitation Analysis, and the Photovoltaic Properties of 5-(2-ethylhexyl)-1,3-di(furan-2-yl)-4H-thieno[3,4-c]pyrrole-4,6-dione

Enudi

Louis

Ogunwale

et al. 2021

Preprint

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Organic photovoltaic (OPV) are a promising new class of photovoltaic as they offer several advantageous features including large surface area to volume ratio, low cost, lightweight properties, and durability. The limitation of OPV that prevented their adoption for use in the past was their low power conversion efficiency (PCE) but that drawback has been solved by the development of the donor-acceptor-donor (D-A-D) system with high conversion efficiencies. Herein, 5-(2-ethylhexyl)-1,3-di (furan-2-yl)-4H-thieno [3,4-c]pyrrole-4,6(5H)-dione (FTPF), a donor-acceptor-donor monomer was investigated for its optoelectronic, excited state, and photovoltaic properties using a density functional theory (DFT) and time-dependent density function theory (TD-DFT) at the B3LYP/6-31+G(d,p) theoretical method. The spectral analysis (FT-IR, UV-vis, and NMR), electronic molecular properties, natural bonding orbitals (MOs and NBOs) analyses, and excitation were studied at this level in gas, hexane, DMF, and THF. The UV-Vis spectrum showed that FTPF exhibited mono-absorption in non-polar gas and hexane, but dual absorptions in polar solvents (DMF and THF) having maximum wavelength (λmax) at 351, 359, 371 and 373 nm in gas, hexane, THF, and DMF respectively, showing a major red shift as solvent became polar. The hole-electron excitation studies of the first five singlet states: S0→S1/S2/S3/S4/S5 in gas and DMF phases showed that S0→S1 is a delocalized π→π* Rydberg excitations originating from the D-A-D C=C π bonds, S0→S2 is π→π* local excitation, while S0→S3 in water occurred as an n→π* from the carbonyl and azolide groups of the acceptor unit, but n→π* charge transfer (CT) in DMF. The S0→S5 in water and S0→S4 are n→π* LE type excitations, while S0→S5 in DMF conformed to a delocalized π→π* excitation extended over the D-A-D conjugated backbone. FTPF provided efficient electron injection in all studied solvent; showing that FTPF is a sure-bet for opto-electronic application.

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Preparation and characterization of quantum dot doped polyaniline photoactive film for organic solar cell application

Cited by 10 publications

References 44 publications

Dual Applications of Cobalt-Oxide-Grafted Carbon Quantum Dot Nanocomposite for Two Electrode Asymmetric Supercapacitors and Photocatalytic Behavior

Dual Applications of Cobalt-Oxide-Grafted Carbon Quantum Dot Nanocomposite for Two Electrode Asymmetric Supercapacitors and Photocatalytic Behavior

Heteroatom (boron, nitrogen, and fluorine) quantum dot-doped polyaniline-photoactive film preparation and characterization for organic solar cell applications

Understanding the Electronic Interactions, Vertical Excitation Analysis, and the Photovoltaic Properties of 5-(2-ethylhexyl)-1,3-di(furan-2-yl)-4H-thieno[3,4-c]pyrrole-4,6-dione

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