Mixed Morphology, Inflated e−- h+ Recombination Rate and Augmented Optical Absorbance Capacity of PANI/PPY/CdS Nanocomposite as Electron Transport Layer for OLED Application

Verma, Ajeet; Choudhary, R. N. P.

doi:10.1007/s10904-018-1015-4

Cited by 15 publications

(8 citation statements)

References 44 publications

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“…This is due to the strong interaction between PANI and CdS. 26,34 The peak intensity, too, increases with an increase in the CdS (% weight) and an increase in CdS increases the aromatic ring deformation band in the 500−1000 cm −1 region; therefore, the FTIR results show the proper CdS embedding in the PANI matrix.…”

Section: Resultsmentioning

confidence: 94%

“…Increasing CdS increases the crystallinity, causing the peaks to somewhat shift to smaller angles, which is an indication of a better PANI-CdS interaction. 33,34 Nanocomposites' degree of crystallinity, interplate spacing, and intrachain separation (obtained from the following equations) are listed in Table 2: 35,36 = × Cr(%) area of most intense peak the total area of the peaks 100…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, the presence of CdS in PANI causes more order in the mentioned rings and improves the charge transfer performance of nanocomposites. Increasing CdS increases the crystallinity, causing the peaks to somewhat shift to smaller angles, which is an indication of a better PANI-CdS interaction. , Nanocomposites’ degree of crystallinity, interplate spacing, and intrachain separation (obtained from the following equations) are listed in Table : , C r ( % ) = normala normalr normale normala .25em normalo normalf .25em normalm normalo normals normalt .25em normali normaln normalt normale normaln normals normale .25em normalp normale normala normalk normalt normalh normale .25em normalt normalo normalt normala normall .25em normala normalr normale normala .25em normalo normalf .25em normalt normalh normale .25em normalp normale normala normalk normals × 100 d = λ 2 nobreak0em0.25em⁢ sin nobreak0em.25em⁡ θ R = 5 λ 8 nobreak0em0.25em⁢ sin nobreak0em.25em⁡ θ …”

Section: Resultsmentioning

confidence: 99%

“…Gap of PANI/CdS Hybrid Nanocomposites. In Figure 5 that shows the conductivity of neat PANI and hybrid nanocomposites (measured by the 4 point probe method), introducing CdS to PANI highly affects the conductivity, which increases with an increase in the CdS, maybe due to the formation of new conducting channels in the hybrid nanocomposites 34 and finally it reaches a conductivity threshold. It can be concluded, therefore, that the presence of CdS drastically improves the charge transfer due to electronic interaction between electroactive Cd and PANI backbone 47 and the suitable CdS dispersion in the matrix of the nanocomposites, which was expectable according to the morphology shown in Figure 4c-g.…”

Section: Cds Effects On the Conductivity And Bandmentioning

confidence: 99%

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Synthesis of Polyaniline/Cadmium Sulfide Hybrid Nanocomposites via a One-Pot Process: Morphology Control for Improvement of Photovoltaic Performance

Jarrahi

Farzi

Fischer

2023

ACS Appl. Electron. Mater.

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In this work, the one-pot process was employed to synthesize polyaniline/cadmium sulfide hybrid nanocomposite. Herein, for the first time, we report a comprehensive study from the synthesis of the raw materials to the photovoltaic cell performance investigation including the synthesis of the polyaniline/cadmium sulfide hybrid nanocomposite through a one-pot process, a morphology study, the fabrication of a hybrid organic/inorganic solar cell, and the evaluation of the cell performance. To this end, the CdS-to-PANI weight ratio was considered as a key parameter, and 0, 2.5, 5, 10, 15, 20, and 40% were used as the CdS values. FTIR, XRD, and FESEM analyses confirmed that the presence of CdS in the PANI nanotubular network affected the morphology of the hybrid nanocomposite, and changing the CdS-to-PANI ratio tuned the nanotubular network morphology from coarse to fine. UV–visible absorption spectrum studies validated the reduction of PANI bandgap due to the presence of CdS. Likewise, the conductivity of the nanocomposites was also improved compared to neat PANI due to the increasing of charge density. These controlled-morphology nanocomposites were used for organic/inorganic hybrid solar cells based on the configuration of the FTO/ZnO/CdS@PANI/Ag device, and the morphology effects on their performance were investigated. When CdS was incorporated in the PANI nanotubular network, J SC and efficiency increased by, respectively, 4.471 mA·cm–1 and 1.87%. This means a 22-fold increase in J SC and a 1700-fold increase in the solar cell based on 20%CdS@PANI compared to those in the solar cell made with pure PANI. In short, by using the one-pot process, it is possible to hierarchically ensure better control of the morphology of organic and inorganic components, increasing the light absorption edge, reducing the bandgap, and improving the photovoltaic performance of CdS@PANI organic–inorganic hybrid nanocomposites.

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Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Cds Effects On the Conductivity And Bandmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis of Polyaniline/Cadmium Sulfide Hybrid Nanocomposites via a One-Pot Process: Morphology Control for Improvement of Photovoltaic Performance

Jarrahi

Farzi

Fischer

2023

ACS Appl. Electron. Mater.

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“…Conducting polymers with excellent electrical and dielectric properties is a solution for the energy storage crisis. The conducting polymers are widely used in electronics, batteries, supercapacitors and EMI shields [1][2][3][4]. Polyaniline (PANI) and polypyrrole (PPy) are extensively used conducting polymers as they are easily prepared, have excellent electrical properties and chemical as well as environmental stability [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, Conductivity and Gas Sensing Performance of Copolymer Nanocomposites Based on Copper Alumina and Poly(aniline-co-pyrrole)

Sankar¹,

Ramesan²

2022

Preprint

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Poly (aniline-co-pyrrole) (PANI-co-PPy) with variable loadings of copper alumina (Cu-Al2O3) nanoparticles were synthesized by benign in-situ chemical oxidation polymerization. The structural, thermal transition and morphological interpretations were made with Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), differential scanning calorimetry (DSC) and high-resolution transmission electron microscope (HR-TEM). The electrical properties such as AC conductivity and dielectric measurements were performed at room temperature to verify their application in developing new electronic devices. The arrangement of nanoparticles in the copolymer and the synergistic interaction in the polymer matrix was deduced from FT-IR and XRD. HR-TEM indicates the nanosized uniform dispersion of filler in the copolymer. DSC revealed a reduction in the flexibility of polymer with an increase in glass transition temperature of copolymer composites. AC conductivity measurement manifested an increased hopping of charge carriers in nanocomposites when compared with pristine PANI-co-PPy. Dielectric properties were maximum for copolymer with 5wt.% Cu-Al2O3. The increase in dielectric properties of copolymer nanocomposites confirmed the efficient packing density of nanofiller within the polymer. Excellent gas sensing traits were observed for copolymer nanocomposites due to the electron transfers existing between PANI-co-PPy and ammonia gas. The magnificent material properties make (PANI-co-PPy)/Cu-Al2O3 nanocomposites, a promising contender for developing nano-electronic devices.

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Fabrication of ternary polyaniline‐titanium dioxide‐polypyrrole (PANI‐TiO₂‐PPy) nanocomposite as an efficient polymer electrode for supercapacitors

Elumalai¹,

Charles²,

Kumar³

et al. 2023

J of Applied Polymer Sci

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A facile ternary nanocomposite comprising of polyaniline, titanium dioxide, polypyrrole, that is, PANI‐TiO2‐PPy was synthesized by in‐situ chemical oxidative polymerization method and fabricated as an active electrode material for supercapacitor applications. The phase, morphology, chemical composition, electronic states and thermal behavior of PANI‐TiO2‐PPy were analyzed using XRD, FESEM/EDAX, FTIR, XPS, and TGA techniques. CV profile of PANI‐TiO2‐PPy electrode exhibits the highest specific capacitance (600 F g−1) at 1 mV/s in 1 M KOH electrolyte, which is higher than the PANI (31 F g−1), PPy (120 F g−1), and TiO2 (398 F g−1) electrodes. The charge storage mechanism of PANI‐TiO2‐PPy electrode was also explored in 1 M H2SO4 and 1 M Na2SO4 electrolytes; wherein the capacitive behavior of ternary electrode was found to be superior in alkaline electrolyte compared to acidic and neutral electrolytes. From GCD, the ternary electrode exhibited the longest charge/discharge curve when compared to unary electrodes, which affirms the improved energy storage capacity of PANI‐TiO2‐PPy. The lower ESR value (0.90 Ω) exhibited by ternary electrode in comparison with PANI (1.75 Ω), PPy (1.59 Ω), and TiO2 (2.11 Ω) and 92% of capacitive retention after 2500 charge/discharge cycles suggest that PANI‐TiO2‐PPy could be a suitable active electrode for supercapacitors.

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Mixed Morphology, Inflated e−- h+ Recombination Rate and Augmented Optical Absorbance Capacity of PANI/PPY/CdS Nanocomposite as Electron Transport Layer for OLED Application

Cited by 15 publications

References 44 publications

Synthesis of Polyaniline/Cadmium Sulfide Hybrid Nanocomposites via a One-Pot Process: Morphology Control for Improvement of Photovoltaic Performance

Synthesis of Polyaniline/Cadmium Sulfide Hybrid Nanocomposites via a One-Pot Process: Morphology Control for Improvement of Photovoltaic Performance

Synthesis, Characterization, Conductivity and Gas Sensing Performance of Copolymer Nanocomposites Based on Copper Alumina and Poly(aniline-co-pyrrole)

Fabrication of ternary polyaniline‐titanium dioxide‐polypyrrole (PANI‐TiO₂‐PPy) nanocomposite as an efficient polymer electrode for supercapacitors

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Mixed Morphology, Inflated e−- h+ Recombination Rate and Augmented Optical Absorbance Capacity of PANI/PPY/CdS Nanocomposite as Electron Transport Layer for OLED Application

Cited by 15 publications

References 44 publications

Synthesis of Polyaniline/Cadmium Sulfide Hybrid Nanocomposites via a One-Pot Process: Morphology Control for Improvement of Photovoltaic Performance

Synthesis of Polyaniline/Cadmium Sulfide Hybrid Nanocomposites via a One-Pot Process: Morphology Control for Improvement of Photovoltaic Performance

Synthesis, Characterization, Conductivity and Gas Sensing Performance of Copolymer Nanocomposites Based on Copper Alumina and Poly(aniline-co-pyrrole)

Fabrication of ternary polyaniline‐titanium dioxide‐polypyrrole (PANI‐TiO2‐PPy) nanocomposite as an efficient polymer electrode for supercapacitors

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Product

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Fabrication of ternary polyaniline‐titanium dioxide‐polypyrrole (PANI‐TiO₂‐PPy) nanocomposite as an efficient polymer electrode for supercapacitors