Spiky Durian-Shaped Au@Ag Nanoparticles in PEDOT:PSS for Improved Efficiency of Organic Solar Cells

Alkhalayfeh, Muheeb Ahmad; Aziz, Azlan Abdul; Pakhuruddin, Mohd Zamir; Katubi, Khadijah Mohammedsaleh

doi:10.3390/ma14195591

Cited by 11 publications

(1 citation statement)

References 45 publications

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“…In addition, the value of peak-to-valley ( R pv ) was also enhanced from 149.8 nm for the graphene-PEDOT:PSS composite to 263.9 nm for Au–Ag core–shell/graphene/PEDOT:PSS. The increase of both roughness ( R q ) and peak-to-valley ( R pv ) could be attributed to the higher volume ratio of the Au–Ag core–shell embedded to the graphene/PEDOT:PSS composite that leads to a higher amount of these core–shell nanoparticles penetrating the nanocomposite layer. , In addition, this increase could also minimize the electron diffusion length, which could facilitate a faster charge transfer on the active layer of the Au–Ag/graphene/PEDOT:PSS nanocomposite. The enhanced properties of these core–shell nanoparticles modified with the nanocarbon composite would be expected to be beneficial when they were employed as a material for electrode modifier as will be investigated in the next sections.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Sensors based on Gold–Silver Core–Shell Nanoparticles Combined with a Graphene/PEDOT:PSS Composite Modified Glassy Carbon Electrode for Paraoxon-ethyl Detection

Wahyuni,

Putra,

Rahman

et al. 2024

ACS Omega

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Herein, a nonenzymatic detection of paraoxon-ethyl was developed by modifying a glassy carbon electrode (GCE) with gold−silver core−shell (Au−Ag) nanoparticles combined with the composite of graphene with poly(3,4-ethylenedioxythiophene)/ poly(styrenesulfonate) (PEDOT:PSS). These core−shell nanoparticles (Au−Ag) were synthesized using a seed-growth method and characterized using UV−vis spectroscopy and high-resolution transmission electron microscopy (HR-TEM) techniques. Meanwhile, the structural properties, surface morphology and topography, and electrochemical characterization of the composite of Au−Ag core−shell/graphene/PEDOT:PSS were analyzed using infrared spectroscopy, field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), and electrochemical impedance spectroscopy (EIS) techniques. Moreover, the proposed sensor for paraoxon-ethyl detection based on Au−Ag core− shell/graphene/PEDOT:PSS modified GCE demonstrates good electrochemical and electroanalytical performance when investigated with cyclic voltammetry (CV), differential pulse voltammetry (DPV), and chronoamperometry techniques. It was found that the synergistic effect between Au−Ag core−shell nanoparticles and the composite of graphene/PEDOT:PSS provides a higher conductivity and enhanced electrocatalytic activity for paraoxon-ethyl detection at an optimum pH of 7. At pH 7, the proposed sensor for paraoxon-ethyl detection shows a linear range of concentrations from 0.2 to 100 μM with a limit of detection of 10 nM and high sensitivity of 3.24 μA μM −1 cm −2 . In addition, the proposed sensor for paraoxon-ethyl confirmed good reproducibility, with the possibility of being further developed as a disposable electrode. This sensor also displayed good selectivity in the presence of several interfering species such as diazinon, carbaryl, ascorbic acid, glucose, nitrite, sodium bicarbonate, and magnesium sulfate. For practical applications, this proposed sensor was employed for the determination of paraoxon-ethyl in real samples (fruits and vegetables) and showed no significant difference from the standard spectrophotometric technique. In conclusion, this proposed sensor might have a potential to be developed as a platform of electrochemical sensors for pesticide detection.

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Section: Resultsmentioning

confidence: 99%

Electrochemical Sensors based on Gold–Silver Core–Shell Nanoparticles Combined with a Graphene/PEDOT:PSS Composite Modified Glassy Carbon Electrode for Paraoxon-ethyl Detection

Wahyuni,

Putra,

Rahman

et al. 2024

ACS Omega

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Interface Engineering for Highly Efficient Organic Solar Cells

et al. 2023

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Organic solar cells (OSCs) have made dramatic advancements during the past decades owing to the innovative material design and device structure optimization, with power conversion efficiencies surpassing 19% and 20% for single‐junction and tandem devices, respectively. Interface engineering, by modifying interface properties between different layers for OSCs, has become a vital part to promote the device efficiency. It is essential to elucidate the intrinsic working mechanism of interface layers, as well as the related physical and chemical processes that manipulate device performance and long‐term stability. In this article, the advances in interface engineering aimed to pursue high‐performance OSCs are reviewed. The specific functions and corresponding design principles of interface layers are summarized first. Then, the anode interface layer, cathode interface layer in single‐junction OSCs, and interconnecting layer of tandem devices are discussed in separate categories, and the interface engineering‐related improvements on device efficiency and stability are analyzed. Finally, the challenges and prospects associated with application of interface engineering are discussed with the emphasis on large‐area, high‐performance, and low‐cost device manufacturing.

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Recent Development of Indoor Organic Photovoltaics

Alkhalayfeh

Aziz

Pakhuruddin

et al. 2021

Physica Status Solidi (a)

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Solar energy technologies provide solutions for the effective exploitation of internet of things (IoT)‐based applications such as smart devices. Organic photovoltaics (OPVs) fabricated from π‐conjugated carbon‐based semiconductors have shown great potential for indoor applications based on exceptional properties that include small current leakage under dim lighting, large absorption coefficient, and low‐cost solution processes. However, organic cells need additional enhancements, such as improving their dim light absorption and exploiting suitable bandgap materials, to make the best use of indoor lighting photons. This article highlights the crucial role of the theoretical basis of photovoltaics and reviews the effect of active layer thickness. Furthermore, the crucial advancements in material design for indoor OPVs are highlighted herein. Lastly, the contribution of plasmonic effect of metallic nanoparticles (MNPs) to improve the performance of OPVs is elaborated, which could contribute to raising the efficiency of energy conversion and reaching production scale criteria.

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Spiky Durian-Shaped Au@Ag Nanoparticles in PEDOT:PSS for Improved Efficiency of Organic Solar Cells

Cited by 11 publications

References 45 publications

Electrochemical Sensors based on Gold–Silver Core–Shell Nanoparticles Combined with a Graphene/PEDOT:PSS Composite Modified Glassy Carbon Electrode for Paraoxon-ethyl Detection

Electrochemical Sensors based on Gold–Silver Core–Shell Nanoparticles Combined with a Graphene/PEDOT:PSS Composite Modified Glassy Carbon Electrode for Paraoxon-ethyl Detection

Interface Engineering for Highly Efficient Organic Solar Cells

Recent Development of Indoor Organic Photovoltaics

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