Silver Nanoparticles in PEDOT:PSS Layer for Polymer Solar Cell Application

Iwan, Agnieszka; Boharewicz, Bartosz; Tazbir, Igor; Sikora, Andrzej; Zboromirska-Wnukiewicz, B.

doi:10.1155/2015/764938

Cited by 23 publications

(11 citation statements)

References 22 publications

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“…However, if this were to be true, a significant decrease in FF would be apparent, as demonstrated with nanoparticles or isolated metal islands based systems. 120,[159][160][161][162] However, the decrease in FF between the initial and final measurement in the present system is only of ~ 3 % for all the PFI concentrations but 1:6:1, which shows a strong increase of ~ 20 % as presented in Fig. 8c.…”

Section: Discussionmentioning

confidence: 80%

Influence of perfluorinated ionomer in PEDOT:PSS on the rectification and degradation of organic photovoltaic cells

et al. 2018

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Poly (3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is widely used to build optoelectronic devices. However, as a hygroscopic waterbased acidic material, it brings major concerns for stability and degradation, resulting in an intense effort to replace it in organic photovoltaic (OPV) devices. In this work, we focus on the perfluorinated ionomer (PFI) polymeric additive to PEDOT:PSS. We demonstrate that it can reduce the relative amplitude of OPV device burn-in, and find two distinct regimes of influence. At low concentrations there is a subtle effect on wetting and work function, for instance, with a detrimental impact on the device characteristics, and above a threshold it changes the electronic and device properties. The abrupt threshold in the conducting polymer occurs for PFI concentrations greater than or equal to the PSS concentration and was revealed by monitoring variations in transmission, topography, work-function, wettability and OPV device characteristics. Below this PFI concentration threshold, the power conversion efficiency (PCE) of OPVs based on poly(3-hexylthiophene-2,5-diyl):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM) are impaired largely by low fill-factors due to poor charge extraction. Above the PFI concentration threshold, we recover the PCE before it is improved beyond the pristine PEDOT:PSS layer based OPV devices. Supplementary to the performance enhancement, PFI improves OPV device stability and lifetime. Our degradation study leads to the conclusion that PFI prevents water from diffusing to and from the hygrosopic PEDOT:PSS layer, which slows down the deterioration of the PEDOT:PSS layer and the aluminum electrode. These findings reveal mechanisms and opportunities that should be taken into consideration when developing components to inhibit OPV degradation. 35-38 whilst oxidation, delamination and interfacial effects may occur at the electrodes. 39-45 Metal ion diffusion from the electrodes and changes in morphology have also been reported in both the active and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) layers. C. T. Howells et al. 2/14organic optoelectronics between indium tin oxide (ITO) anodes and active layers. [54][55][56][57] With its metal properties, 58-62 PEDOT:PSS and similar conducting layers are part of the contact and are sometimes called hole injection layers in light emitting devices. By analogy, in this solar cell work, PEDOT:PSS is then referred to as a hole extraction layer (HEL) rather than a hole transport layer or interlayer. The large ionisation potential promotes an Ohmic contact and improves the built-in electric field, whilst high conductivity and transparency ensure minimal resistive and optical losses, respectively. 53,63,64 The HEL also helps to prevent metal ion diffusion from the ITO into the active layer and the cathode from short-circuiting the anode. 50 The PSS is a water-soluble polyelectrolyte that serves as a charge balancing dopant during the polymerisation of EDOT monomers. It oxidises and stabi...

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Section: Discussionmentioning

confidence: 80%

Influence of perfluorinated ionomer in PEDOT:PSS on the rectification and degradation of organic photovoltaic cells

et al. 2018

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“…As a result, PEDOT:D‐PSM shows positive potentiality in response to increasing cationic form. However, in basic medium, the anionic form of the composite material was de‐protonated and the composite was internalized on the rGO sheets, resulting in neutralized surface potentiality, which then turned into characteristic own negative potentiality . Furthermore the stability and size distribution in cells culture medium and physiologic buffer solution (pH 7.4) was evaluated between 1 and 7 days, showing well dispersed and suspended rGO/[PEDOT:D‐PSM]:C/B‐PgP hybrid nanoparticles with time, suggesting uniform dispersity (Supporting Information Figure S2).…”

Section: Resultsmentioning

confidence: 99%

Near‐infrared‐active and pH‐responsive fluorescent polymer‐integrated hybrid graphene oxide nanoparticles for the detection and treatment of cancer

Sharker

Kang

Shin

et al. 2016

J of Applied Polymer Sci

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Hybrid nanoparticles for theragnosis have great potentiality to bring desire functionalities in one integrated system. The development of bioimaging guided photothermal therapy (PTT) is pivotal in optimizing cytotoxic cancer therapy. We report nearinfrared (NIR)-active and pH-responsive fluorescent, catechol-conjugated, reduced graphene oxide (rGO)-anchored hybrid nanoparticles that can sharply increase the photothermal heat in response to NIR exposure and exhibit pH-dependent fluorescence emission for the detection of tumor areas without causing cell toxicity. The optoelectronic absorption property of poly(3,4-ethylenedioxythiophene) [PEDOT]:dopamine-conjugated poly(4-styrenesulfonate-co-maleic acid) [D-PSM] and 3 0 ,4 0 -dihydroxyacetophenone/borondipyrromethene [CCDP/BODIPY]-quaternized polyethylene glycol grafted poly(dimethylaminoethyl methacrylate) (C/B-PgP) present in this hybrid nanoparticles resulted in efficient photothermal conversion with pH-tunable fluorescence that exerted sufficient photothermal cytotoxicity to cancer cells. The in vitro cellular uptake was measured by confocal laser scanning microscopy, allowing the therapeutic efficiency and bioimaging effects to be explored. We expect that the broad optical absorption property of PEDOT:D-PSM with BODIPY-conjugated polymers on rGO sheets would get tremendous attraction in this enormous rising PTT with cancer detectable biomarker.

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“…PpHOBPD 278(467) π -π* transition within aromatic ring system 595 (17) π -π* transition in conjugated azomethine group 5.…”

Section: Fluorescence Spectroscopy Of Monomers and Polymersmentioning

confidence: 99%

“…8,9 They also exhibit liquid crystalline behavior. [10][11][12][13][14] Poly(azomethines) containing (-N=C) functional group have been applied successfully to some extent as transporting materials in organic solar cells [15][16][17] and their application. 18 They can act as antimicrobial agents and these are proving interesting, because these are nonvolatile and thermally stable and cannot penetrate through human skin.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of New Photoresponsive, Ortho and Para Oriented Azomethine Polymers

Qureshi

Khuhawar

Jahangir

2018

ACSi

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Five new azomethine polymers having aliphatic-aromatic moieties were synthesized by polycondensation reaction of dialdehydes and diamines. The dialdehyde monomers differ only in the orientation of the aromatic ring (ortho or para) and were synthesized by condensation reaction between aromatic aldehyde and 1,6-dibromohexane. The molecular mass of the monomers was recorded through E.I mass spectrum. The polymers structures were confirmed by elemental microanalysis, FT-IR, 1 HNMR and UV-Vis Spectroscopy. The morphology of monomers and polymers was evaluated by scanning electron microscopy (SEM). All the polymers were soluble in DMSO (on heating) and somewhat in other solvents. Thermal stability of polymers was analyzed by thermogravimetry (TG) and differential thermal analysis (DTA), all the polymers showed good thermal stability higher than their corresponding monomers. The TG of polymers indicated maximum rate of weight loss (T max) within 412-708 °C. Fluorescence emission spectra of polymers were recorded and the results indicated that all the polymers were photo-responsive and indicated 1 to 4 emission bands with maximum within 349-606 nm. The limit of detection of polymers was within 0.625-1.25 µg/ml. The polymers were also examined for their antimicrobial activities against bacteria and fungi.

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Silver Nanoparticles in PEDOT:PSS Layer for Polymer Solar Cell Application

Cited by 23 publications

References 22 publications

Influence of perfluorinated ionomer in PEDOT:PSS on the rectification and degradation of organic photovoltaic cells

Influence of perfluorinated ionomer in PEDOT:PSS on the rectification and degradation of organic photovoltaic cells

Near‐infrared‐active and pH‐responsive fluorescent polymer‐integrated hybrid graphene oxide nanoparticles for the detection and treatment of cancer

Synthesis and Characterization of New Photoresponsive, Ortho and Para Oriented Azomethine Polymers

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