Poly(ethylene oxide) polymer matrix coupled with urea as gel electrolyte for dye sensitized solar cell applications

Pavithra, Nagaraj; Velayutham, D.; Sorrentino, Andrea; Anandan, Sambandam

doi:10.1016/j.synthmet.2017.01.014

Cited by 18 publications

(11 citation statements)

References 55 publications

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“…The efficiency of a DSSC depends upon three main factors: (i) open circuit voltage ( V OC ), (ii) short circuit current ( J SC ), and (iii) fill factor (ff) of the cell. J SC mainly depends upon ionic mobility in the electrolyte, V OC depends upon the recombination resistance and electron lifetime of electrons in the conduction band of TiO 2 [ 29 ], and ff depends on uniformity and pore filling ability of electrolyte layer.…”

Section: Resultsmentioning

confidence: 99%

Effect of Cross-Linking on the Performances of Starch-Based Biopolymer as Gel Electrolyte for Dye-Sensitized Solar Cell Applications

et al. 2017

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Dye-sensitized solar cells (DSSCs) have become a validated and economically credible competitor to the traditional solid-state junction photovoltaic devices. DSSCs based on biopolymer gel electrolyte systems offer the perspective of competitive conversion efficiencies with a very low-cost fabrication. In this paper, a new starch-based biopolymer gel electrolyte system is prepared by mixing lithium iodide and iodine with bare and citric acid cross-linked potato starches with glycerol as the plasticizing agent. The effect of the preparation methods on the starch cross-linking degree as well as the photoconversion efficiency of the resulting DSSC cells is carefully analyzed. Fourier transform spectroscopy, X-ray diffraction, and scanning electron microscopy were used to characterize the morphology and conformational changes of starch in the electrolytes. The conductivity of the biopolymer electrolytes was determined by electrochemical impedance spectroscopy. DSSC based on the starch-gel polymer electrolytes were characterized by photovoltaic measurements and electrochemical impedance spectroscopy. Results clearly show that the cross-linking increases the recombination resistance and open circuit voltage (V OC ) of the DSSC, and thereby the photoconversion efficiency of the cell. In particular, electrolytes containing 1.4 g bare and cross-linked starches showed ionic conductivities of σ = 1.61, 0.59, 0.38, and 0.35 S cm −1 , and the corresponding DSSCs showed efficiencies of 1.2, 1.4, 0.93, and 1.11%, respectively.

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Section: Resultsmentioning

confidence: 99%

Effect of Cross-Linking on the Performances of Starch-Based Biopolymer as Gel Electrolyte for Dye-Sensitized Solar Cell Applications

et al. 2017

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“…Recently, urea has been used as a plasticizer for PEO to prepare polymer gel electrolytes with an I − /I 3 − redox couple [235]. The presence of 4% urea increased the ionic conductivity (σ = 42.8 mS cm −1 ) and the tri-iodide diffusion coefficient (D = 2.06 × 10 −6 cm 2 s −1 ).…”

Section: Electrolytes For Dsscsmentioning

confidence: 99%

Progress on Electrolytes Development in Dye-Sensitized Solar Cells

et al. 2019

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Dye-sensitized solar cells (DSSCs) have been intensely researched for more than two decades. Electrolyte formulations are one of the bottlenecks to their successful commercialization, since these result in trade-offs between the photovoltaic performance and long-term performance stability. The corrosive nature of the redox shuttles in the electrolytes is an additional limitation for industrial-scale production of DSSCs, especially with low cost metallic electrodes. Numerous electrolyte formulations have been developed and tested in various DSSC configurations to address the aforementioned challenges. Here, we comprehensively review the progress on the development and application of electrolytes for DSSCs. We particularly focus on the improvements that have been made in different types of electrolytes, which result in enhanced photovoltaic performance and long-term device stability of DSSCs. Several recently introduced electrolyte materials are reviewed, and the role of electrolytes in different DSSC device designs is critically assessed. To sum up, we provide an overview of recent trends in research on electrolytes for DSSCs and highlight the advantages and limitations of recently reported novel electrolyte compositions for producing low-cost and industrially scalable solar cell technology.

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“…51 Again in 2017, they used urea as an additive in polyethylene oxide and iodine/iodide redox couple as the electrolyte with the highest efficiency of 6.82%. 52 In 2019, our group reported a PCE of 9.1% for gel polymer electrolyte prepared using hydroxypropyl cellulose with symmetric thiourea derivatives of tetramethylbenzidine with Co(II/III)phen redox couple. 48 From the above-mentioned literature, we can conclude that using heteroatom-rich aromatic compounds with distinctive polymers for GPEs can help to obtain stable and efficient dye-sensitized solar cell devices.…”

Section: Comparison Study Of the Past Research Using Urea Derivativesmentioning

confidence: 99%

“…42 Most remarkably, the latest reports describe the use of urea as an additive in GPE to improve the efficiency of DSSCs. 45,46,48,51,52 In 2007, Wu et al used PEG (polyethylene glycol) (40%) and propylene carbonate (60%) with iodide salts to achieve an efficiency of 7.22%. 53 PEG-based polymers play a major role due to their enhanced segmental motion of the ions in the electrolyte.…”

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confidence: 99%

Poly(ethylene glycol)–poly(propylene glycol)–poly(ethylene glycol) and polyvinylidene fluoride blend doped with oxydianiline-based thiourea derivatives as a novel and modest gel electrolyte system for dye-sensitized solar cell applications

Karthika

Ganesan

2020

RSC Adv.

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Poly(ethylene oxide) polymer matrix coupled with urea as gel electrolyte for dye sensitized solar cell applications

Cited by 18 publications

References 55 publications

Effect of Cross-Linking on the Performances of Starch-Based Biopolymer as Gel Electrolyte for Dye-Sensitized Solar Cell Applications

Effect of Cross-Linking on the Performances of Starch-Based Biopolymer as Gel Electrolyte for Dye-Sensitized Solar Cell Applications

Progress on Electrolytes Development in Dye-Sensitized Solar Cells

Poly(ethylene glycol)–poly(propylene glycol)–poly(ethylene glycol) and polyvinylidene fluoride blend doped with oxydianiline-based thiourea derivatives as a novel and modest gel electrolyte system for dye-sensitized solar cell applications

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