Photovoltaic Performance of Porphyrin‐Based Dye‐Sensitized Solar Cells with Binary Ionic Liquid Electrolytes

Khan, Sher Bahadar; Yadav, Pankaj; Décoppet, Jean-David; Yi, Chenyi; Alghamdi, Mohammed S; Alhogbi, Basma G.; Asiri, Abdullah M.; Zakeeruddin, Shaik M.; Grätzel, Michaël

doi:10.1002/ente.202000092

Cited by 5 publications

(4 citation statements)

References 34 publications

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“…This study determined that this redox system rapidly regenerated indoline dyes within the range of tens of nanoseconds, several orders of magnitude faster than cobalt(II/III) shuttle [Co(bp y) 3 ] 2+/3+ [NTf 2 ] 3/2 [225]. As a result of the volatility of the organic solvent employed in electrolyte solutions, some groups have expanded investigations into non-volatile routes for DSSC fabrication [212,226,227]. Cao and coworkers have developed a solid-state DSSC (ssDSSC) based on [Cu(tmby) 2 ] +/2+ [NTf 2 ] 2 redox shuttle for a hole transport layer [228].…”

Section: Recent Advances In Dye-sensitized Solar Cellsmentioning

confidence: 99%

Group of Uniform Materials Based on Organic Salts (GUMBOS): A Review of Their Solid State Properties and Applications

Pérez¹,

Ayala²,

Warner³

2021

Ionic Liquids - Thermophysical Properties and Applications

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Ionic liquids (ILs) are defined as organic salts with melting points below 100 °C. Such ionic compounds are typically formed using bulky cations and/or bulky anions in order to produce liquids or lower melting solids. ILs have been widely explored in several research areas including catalysis, remediation, solvents, separations, and many others. The utility of such compounds has also been recently broadened to include solid phase ionic materials. Thus, researchers have pushed the boundaries of ILs chemistry toward the solid state and have hypothesized that valuable properties of ILs can be preserved and fine-tuned to achieve comparable properties in the solid state. In addition, as with ILs, tunability of these solid-phase materials can be achieved through simple counterion metathesis reactions. These solid-state forms of ILs have been designated as a group of uniform materials based on organic salts (GUMBOS). In contrast to ILs, these materials have an expanded melting point range of 25 to 250 °C. In this chapter, we focus on recent developments and studies from the literature that provide for fine tuning and enhancing properties through transformation and recycling of diverse ionic compounds such as dyes, antibiotics, and others into solid state ionic materials of greater utility.

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Section: Recent Advances In Dye-sensitized Solar Cellsmentioning

confidence: 99%

Group of Uniform Materials Based on Organic Salts (GUMBOS): A Review of Their Solid State Properties and Applications

Pérez¹,

Ayala²,

Warner³

2021

Ionic Liquids - Thermophysical Properties and Applications

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“…Imidazolium-based ionic liquids have been widely used as electrolyte components for lithium-ion batteries, [18,19] DSSCs, [20,21] supercapacitors [22,23] and field effect transistors [24,25] due to their low viscosity, [26,27] high conductivity, [28,29] non-flammability [30] and ease of functionalization through the available 1,3-positions. Regarding the conductivity of the ILs, it has been reported that oxygen atoms on the side chains of cation provide relatively higher conductivity values compared to the ones with the same length of n-alkyl chains due to ion-ion and van der Waals interactions.…”

Section: Introductionmentioning

confidence: 99%

Influence of Cation Size and Polarity on Charge Transport in Ionic Liquid Based Electrolytes

Aydın

Öner

Zafer

et al. 2022

Israel Journal of Chemistry

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Imidazolium-based ionic liquids (ILs) with allyl and ether side chains were synthesized and characterized. Comprehensive structural and photoelectrochemical characterizations were performed, transport properties of ILs were also examined as electrolyte components in dye sensitized solar cells (DSSCs). The properties of synthesized materials and DSSC performances were compared with 1-propyl-3methyl imidazolium iodide (PMII) and 1-allyl-3-ethyl imidazolium iodide (AEII) as reference ILs. Ionic conductivities, diffusion coefficients and charge transfer resistances of synthesized ionic liquids were investigated on DSSCs by Electrochemical Impedance Spectroscopy (EIS). The diffusion coefficient values of triiodide ions in different ionic liquid-based electrolytes were measured by the means of diffusion limited current density method and found to be 1.75 × 10 À 7 cm 2 s À 1 and 2.05 × 10 À 7 cm 2 s À 1 with corresponding photocurrent densities of 10.38 mAcm À 2 and 12.13 mAcm À 2 for the reference AEII and PMII based electrolytes, respectively. However, for the electrolytes of 1-(2-methoxyethyl)-3allyl imidazolium iodide and 1-allyl-3-methyl imidazolium iodide ionic liquids, these values were found to be 0.86 × 10 À 7 cm 2 s À 1 and 0.57 × 10 À 7 cm 2 s À 1 with photocurrent densities of 9.53 mAcm À 2 and 8.98 mAcm À 2 , respectively. Allyl and ether substituted imidazolium ILs exhibited promising results as potential alternative electrolyte materials for DSSCs.

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“…MPII is normally combined with lower viscosity and non‐redox ILs to reduce its high viscosity. This is because the viscosity of the binary ILs electrolyte is determined by the viscosity of non‐redox IL added in MPII 14 . In general, the viscosity of ILs has been found to have the greatest impact on the efficiency of DSSCs.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient dye‐sensitized solar cells: A comparative study with two different system of solvent‐free binary room‐temperature ionic liquid‐based electrolytes

Syawal

Farhana

Goh

et al. 2021

J of Applied Polymer Sci

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In this work, novel redox electrolytes based on poly (ethylene oxide) (PEO) were prepared using binary ionic liquid 1‐methyl‐3‐propylimidazolium iodide (MPII) with 1‐ethyl‐3‐methylimidazolium bis(trifluoromethylsulfonyl)imide (EMIMTFSI) or 1‐butyl‐3‐methylimidazolium tetrafluoroborate (BMIMBF4) to reduce the high viscosity of MPII. The addition of low viscosity ionic liquids is to overcome the low mass transportation of redox mediator faced by the single ionic liquid. Therefore, different ratios of ionic liquids were added, and their effect on the electrical properties of the ionic liquid‐based gel polymer electrolytes (GPE) was observed. It was confirmed that all the system dominant by ions rather than electron. The binary ionic liquid system containing 37.5 wt.% of BMIMBF4 showed the highest ionic conductivity of 24.2 mS cm−1. Fourier‐transform infrared and X‐ray diffraction studies confirmed that complexation occurred between all materials. The combination of two alkyl side chain length has enhanced the efficiency of the DSSC with short‐circuit current density (JSC) of 26.81 mA cm−1, open‐circuit voltage (VOC) of 0.67 V, fill factor of 44.5% and photovoltaic conversion efficiency (η) of 7.8%. This work has provided valuable insight for further stability of binary ionic liquid‐based GPE compared to single ionic liquid electrolytes.

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Photovoltaic Performance of Porphyrin‐Based Dye‐Sensitized Solar Cells with Binary Ionic Liquid Electrolytes

Cited by 5 publications

References 34 publications

Group of Uniform Materials Based on Organic Salts (GUMBOS): A Review of Their Solid State Properties and Applications

Group of Uniform Materials Based on Organic Salts (GUMBOS): A Review of Their Solid State Properties and Applications

Influence of Cation Size and Polarity on Charge Transport in Ionic Liquid Based Electrolytes

Highly efficient dye‐sensitized solar cells: A comparative study with two different system of solvent‐free binary room‐temperature ionic liquid‐based electrolytes

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