Metal oxides and noble metals application in organic solar cells

Maake, Popoti J.; Bolokang, A.S.; Arendse, Christopher J.; Vohra, Varun; Iwuoha, Emmanuel I.; Motaung, David E.

doi:10.1016/j.solener.2020.06.084

Cited by 28 publications

(11 citation statements)

References 164 publications

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“…The combination of organic semiconductors and metal nanoparticles (NPs) can further improve device performances. Particularly, the incorporation of metal NPs in organic solar cells can enhance the device absorption, charge transport, and, finally, their performance [ 15 , 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Layers of Donor-Acceptor Copolymers with Homogenous Silver Nanoparticle Coverage for Photonic Applications

et al. 2021

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Hybrid layers of donor-acceptor (D-A) copolymers containing N,N′-dialkylperylene-3,4,9,10-tetracarboxydiimide electron-acceptor units covered with silver nanoparticles (Ag-NPs) were prepared by electrochemical doping of pristine layers during reduction processes. In situ optical absorption spectra of the layers were recorded during the formation of Ag-NP coverage. The hybrid layers were characterized by absorption spectroscopy, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and energy dispersive X-ray spectroscopy (EDX). In the absorption spectra of the hybrid layers, a surface plasmon band characteristic of Ag-NPs appeared. Significant improvements in light absorption due to the plasmonic effects of Ag NPs were observed. Stable Ag-NPs with an average diameter of 41–63 nm were formed on the surface, as proven by SEM and XPS. The Ag-NP coverage and size depended on the hybrid layer preparation conditions and on the copolymer composition. The metallic character of the Ag-NPs was proven by XPS. The location in the surface layer was further confirmed by EDX analysis. To the best of our knowledge, this is the first report on such hybrid layers having the potential for a variety of photonic and electronic applications.

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Section: Introductionmentioning

confidence: 99%

Hybrid Layers of Donor-Acceptor Copolymers with Homogenous Silver Nanoparticle Coverage for Photonic Applications

et al. 2021

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“…Noble metallic nanoparticles (NPs), e.g., gold (Au) or silver (Ag), exhibit intriguing features due to the localized surface plasmon resonance (LSPR) effect in dielectric environments under light excitation. [1][2][3][4][5] The LSPR of light-excited of noble metal NPs has been widely employed in various applications, including biosensing, [6,7] solar cells, [8,9] optical imaging, [10][11][12] and ultrafast lasers. [13] Electron resonance on the surface of NPs leads to significant electromagnetic field amplification in the nearfield region of the frequency band near the resonance frequency, which is the basis of various surface-enhanced spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Strong Faraday Rotation Based on Localized Surface Plasmon Enhancement of Embedded Metallic Nanoparticles in Glass

et al. 2022

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The Faraday rotation originates from the mechanism by which the time‐reversal symmetry in the material is broken by the external magnetic field. It is the basis for the development of some magneto‐optical devices, such as optical isolators. In integrated optics and telecommunications, nonreciprocal photonic devices with high transmittance and strong Faraday rotation are desired for low‐cost, compact optical systems. Localized surface plasmon resonance (LSPR) from the metallic nanoparticles in dielectrics allows the light localization in subwavelength scales, boosting the interaction between nanoparticles and materials, which results in a number of plasmon‐enhanced effects. Herein, the strong Faraday rotation in BK7 glass by embedded metallic nanoparticles through LSPR is reported. It is elucidated that the mechanism of Faraday rotation is the near‐field enhancement of spin–photon coupling effect in the presence of an external magnetic field. The Verdet constant of the thin‐layer BK7 glass with embedded Au nanoparticles is determined as high as 5059.7 rad T−1 m−1 at 532 nm, exhibiting excellent magneto‐optical features. This work opens a new avenue to develop the subwavelength magneto‐optical devices with embedded metallic nanoparticles.

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“…Metal nanoparticles (NPs) have received a great deal of attention owing to their great applications in various fields including solar cells, − optical devices, , and catalysis. − Among them, silver nanoparticles (AgNPs) have been gaining more consideration and becoming one of the potential candidates in not only catalysis (thermal-, electro-, and photo-) but also antimicrobial therapy. − However, one of the major drawbacks for wide applicability of AgNPs is their tendency to agglomerate and thus form larger particles owing high surface energy . To overcome this problem, various techniques have been proposed to control the size and stabilization of NPs during the formation process, such as inert gas condensation and cocondensation and use of surfactants, protecting agents, , polymeric ligands, , and biological templates. , Importantly, the activity of the resulting material depends on the size of the NPs as well as their preparation techniques. − Deposition of NPs onto a solid support is one of the important and mostly used strategies.…”

Section: Introductionmentioning

confidence: 99%

“…Metal nanoparticles (NPs) have received a great deal of attention owing to their great applications in various fields including solar cells, 1 − 3 optical devices, 4 , 5 and catalysis. 6 − 8 Among them, silver nanoparticles (AgNPs) have been gaining more consideration and becoming one of the potential candidates in not only catalysis (thermal-, electro-, and photo-) but also antimicrobial therapy.…”

Section: Introductionmentioning

confidence: 99%

Click-Chemistry-Mediated Synthesis of Silver Nanoparticle-Supported Polymer-Wrapped Carbon Nanotubes: Glucose Sensor and Antibacterial Material

et al. 2022

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We report a novel approach for the synthesis of silver nanoparticles (NPs) stabilized on polymer-wrapped carbon nanotubes (Ag@polymer/CNTs) for the non-enzymatic glucose sensing and antibacterial activity applications. Poly(styrene-alt-maleic anhydride) (PSM) was functionalized with amino furan to obtain furan-modified poly(styrene-alt-maleic anhydride) (PSMF), which was later grafted onto the surface of CNTs by Diels–Alder “click” reaction to afford a polymer/CNTs hybrid material. The photo-deposition technique was applied to immobilized small-sized (∼10 nm) AgNPs on the surface of the polymer/CNTs hybrid material using visible light irradiation. The resulting material, Ag@polymer/CNTs, showed promising electrocatalytic activity for the non-enzymatic glucose sensing and antibacterial activity in vitro assays toward Escherichia coli, Staphylococcus aureus, and Bacillus cereus bacteria strains. Covalent-bonded polymer layer-bearing carboxylic pendent groups to the CNTs might be playing a pivot role in not only stabilizing AgNPs but also facile electron-transfer reaction, thus demonstrating better activity.

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Metal oxides and noble metals application in organic solar cells

Cited by 28 publications

References 164 publications

Hybrid Layers of Donor-Acceptor Copolymers with Homogenous Silver Nanoparticle Coverage for Photonic Applications

Hybrid Layers of Donor-Acceptor Copolymers with Homogenous Silver Nanoparticle Coverage for Photonic Applications

Strong Faraday Rotation Based on Localized Surface Plasmon Enhancement of Embedded Metallic Nanoparticles in Glass

Click-Chemistry-Mediated Synthesis of Silver Nanoparticle-Supported Polymer-Wrapped Carbon Nanotubes: Glucose Sensor and Antibacterial Material

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