Investigation of the structural properties of poly(ethylene oxide) copolymer as gel polymer electrolyte and durability test in dye-sensitized solar cells

Benedetti, João E.; Freitas, Flavio S.; Fernandes, Felipe Cicaroni; Gonçalves, Alícia Ferreira; Magalhães, Alviclér; Nogueira, Ana F.

doi:10.1007/s11581-014-1318-6

Cited by 16 publications

(6 citation statements)

References 39 publications

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“…We correlate this to a hindered penetration of the electrolyte into the TiO 2 porous electrode, due to its more viscous nature. Such a phenomenon has been acknowledged in previous studies of lab scale devices by our group 33 and others. 42 Considering the characteristics of the TiO 2 film, it is reasonable to assume that such phenomenon is happening here.…”

Section: Industrial and Engineering Chemistry Researchsupporting

confidence: 64%

“…TBP was also added, to compensate for the V oc loss that could originate from the decrease of the polymer concentration in the media. Previous studies found that electrolytes with a high concentration of PEO-based copolymers originated DSSCs with high V oc values, because of the basic nature of these polymers. , The formulation of this polymer gel electrolyte, including the selection of MPN and TBP, was based on previous studies about the development of polymer electrolytes for lab scale DSSCs. − , Other compositions, with slight variations of the polymer to GBL to MPN ratios, were also tested in the modules, but the best results were obtained with the composition described here. The electrolyte containing 1:1 GBL/MPN composition allowed reaching a similar filling time as observed for the liquid electrolyte, being suitable for the module assembly.…”

Section: Resultsmentioning

confidence: 99%

“…Two types of electrolytes were used to assemble the modules: a standard, commercially available I – /I 3 – -based electrolyte (EL-HPE, DyeSol), and a polymer gel electrolyte. The basis for the recipe of the polymer gel electrolyte was previously developed − and consists of a combination of a poly(ethylene oxide) (PEO)-based copolymer with LiI, I 2 and γ-butyrolactone (GBL). Here, the composition was further adjusted with addition of tert -butylpyridine (TBP) and 3-methoxypropionitrile (MPN).…”

Section: Methodsmentioning

confidence: 99%

“…32,43 The formulation of this polymer gel electrolyte, including the selection of MPN and TBP, was based on previous studies about the development of polymer electrolytes for lab scale DSSCs. [31][32][33][34]44 Other compositions, with slight variations of the polymer to GBL to MPN ratios, were also tested in the modules, but the best results were obtained with the composition described here. The electrolyte containing 1:1 GBL/MPN composition allowed reaching a similar filling time as observed for the liquid electrolyte, being suitable for the module assembly.…”

Section: Industrial and Engineering Chemistry Researchmentioning

confidence: 99%

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Assembly Considerations for Dye-Sensitized Solar Modules with Polymer Gel Electrolyte

Hirata

Freitas

Santos

et al. 2016

Ind. Eng. Chem. Res.

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Parallel, portable dye-sensitized solar cell modules with 5 × 5 cm2 of area containing either a polymer gel electrolyte or a standard liquid electrolyte were assembled and characterized as a function of time. For modules sealed with the thermoplastic Surlyn, a rapid loss of performance was observed, due to an insufficient protection of the metallic current collectors (silver grids) of the module and, sometimes, also associated with electrolyte leakage. Similar results were obtained using a glass frit layer as the only material for protective overcoat of the silver grids. Thus, the combination of the Surlyn with a glass frit was investigated. The process based on the combination of two materials allowed achieving a more effective sealing, with enhanced process yield and sample reproducibility. The modules assembled by this method, filled with either a polymer gel electrolyte or liquid electrolyte, showed an enhanced stability. Concomitantly, the formulation of the polymer gel electrolyte was also addressed and had to be tuned to allow an easier filling of the modules.

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Section: Industrial and Engineering Chemistry Researchsupporting

confidence: 64%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Industrial and Engineering Chemistry Researchmentioning

confidence: 99%

See 2 more Smart Citations

Assembly Considerations for Dye-Sensitized Solar Modules with Polymer Gel Electrolyte

Hirata

Freitas

Santos

et al. 2016

Ind. Eng. Chem. Res.

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“…Again, it shows that polymer electrolyte's long-term stability, either in gel or solid, is more promising than liquid electrolyte stability. Benedetti's group 209 has reported the durability of poly(ethylene oxide) copolymer (P(EO-EM)) with γ-butyrolactone (GBL) and LiI/ I 2 . The performance of DSSCs-based P(EO-EM) electrolytes with different amounts of GBL was monitored for 30 days, and 30 wt % GBL exhibited good durability results that were decreased by less than 10%.…”

Section: Long-term Stability Using the Improvisation Of Polymer Elect...mentioning

confidence: 99%

Review on the Revolution of Polymer Electrolytes for Dye-Sensitized Solar Cells

et al. 2021

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Dye-sensitized solar cells (DSSCs) are a suitable replacement for conventional silicon solar cells due to their unique features, such as high energy conversion efficiency and cheap manufacturing cost. The liquid-state DSSCs, however, are poorly sustainable on a long-term basis because volatile liquids are used. The early intention of incorporating polymer into the liquid electrolytes was to curb the problem encountered by liquid electrolytes and enable the DSSCs to function as a long-term stability device. This work briefly reviews how the improvisation has been done on the polymer electrolytes formulation and the extent of how each element can affect the cell efficiency and long-term stability. The role of each component, such as the type of host polymer, iodide salts, nanoparticles, and organic additives that improve the performance of DSSCs, has also been highlighted. This clarified the main purpose of introducing various types of additives into electrolytes to enhance the transport properties as well as the performance of the DSSCs.

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Dye‐Sensitized Solar Cells

Nikolskaia

Shevaleevskiy

2017

Handbook of Solid State Chemistry

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The dye‐sensitized nanocrystalline solar cells (DSSCs), considered as third‐ or next‐generation solar cells, attracted a significant interest as a possible cost‐attractive alternative to the conventional silicon‐based counterparts. DSSCs can achieve up to nearly 13% of certified power conversion efficiency and show great potential for large‐scale production due to using cheap materials and an economically friendly and easy fabrication process. This chapter schematically illustrates the structure and the energy level diagram of a dye‐sensitized solar cell. A variety of wide‐bandgap metal oxides, such as TiO2, ZnO, SnO2, and Nb2O5, can be used as n‐type semiconductor materials for fabricating photoanodes for DSSCs. DSSCs have a number of attractive features and advantages as compared to the conventional solid‐state silicon‐based solar cells. One of the main advantages is their high power conversion efficiency under low solar radiation and in cloudy weather conditions.

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Investigation of the structural properties of poly(ethylene oxide) copolymer as gel polymer electrolyte and durability test in dye-sensitized solar cells

Cited by 16 publications

References 39 publications

Assembly Considerations for Dye-Sensitized Solar Modules with Polymer Gel Electrolyte

Assembly Considerations for Dye-Sensitized Solar Modules with Polymer Gel Electrolyte

Review on the Revolution of Polymer Electrolytes for Dye-Sensitized Solar Cells

Dye‐Sensitized Solar Cells

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