Quaternary ammonium polyiodides as ionic liquid/soft solid electrolytes in dye-sensitized solar cells

Santa-Nokki, Henriette; Busi, Sara; Kallioinen, Jani; Lahtinen, Manu; Korppi-Tommola, Jouko

doi:10.1016/j.jphotochem.2006.07.008

Cited by 34 publications

(4 citation statements)

References 45 publications

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“…Electrochemical dependability is usually desired when ILs are employed instead of liquid electrolytes. Numerous additional ionic liquids have also been researched for their possible use as solvent-free electrolytes in DSSC, including ammonium, 138 guanidinium, 139,140 phosphonium, 141,142 pyridinium, and sulfonium. 143–145 However, due to their high viscosity and issues with mass-transport, these have not produced good efficiency.…”

Section: Recent Improvements In Dsscsmentioning

confidence: 99%

Research on dye sensitized solar cells: recent advancement toward the various constituents of dye sensitized solar cells for efficiency enhancement and future prospects

et al. 2023

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Section: Recent Improvements In Dsscsmentioning

confidence: 99%

Research on dye sensitized solar cells: recent advancement toward the various constituents of dye sensitized solar cells for efficiency enhancement and future prospects

et al. 2023

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“…Many other ionic liquids, including ammonium [145], guanidinium [146,147], phosphonium [148,149], pyridinium, and sulfonium [150,151,152], have also been investigated for their potential use as solvent-free electrolytes in dye-sensitized solar cells. Nonetheless, these have not yielded good efficiencies, owing to their high viscosity as well as mass-transport problems [148,149,150,151,152].…”

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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“…The good performance was attributed to the low viscosity, high conductivity, and low light absorption of the ionic liquid, but the stability of the device was not good. Though imidazolium-based ionic liquids are common, other materials that have been used in electrolytes include ionic liquids with sulfonium, guanidinium, ammonium, pyridinium, and phosphonium, but none of these has shown good efficiencies [63][64][65][66][67][68]. However, implementation of a tetrahydrothiophenium melt demonstrated that ionic liquids can also be used for high efficiency devices [69].…”

Section: Liquid Electrolytesmentioning

confidence: 99%

Nanostructured photovoltaics

2019

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In this review, we begin by discussing the need for harnessing renewable energy resources in the context of global energy demands. A summary of firstand second-generation solar cells, their efficiency and grid parity is provided, followed by the need to reduce material and installation costs, and achieve higher efficiencies beyond the Shockley-Queisser limit imposed on single junction cells. We also discuss the specific advantages offered by nanomaterials in enhanced energy harvesting, what design platforms comprise nanostructured photovoltaics, and list the prominent categories of nanomaterials used in the design of third generation solar cells. We review the significant nanostructured photovoltaic platforms that have encouraging power conversion efficiencies, have the potential for long term stability (both structural and functional) and have received attention in the field. In addition to their operational principle, we highlight both their advantages and shortcomings, along with insights into possible improvements. We include alternate routes to improving power conversion efficiency, not by tuning material properties to match the solar spectrum but using additives and/or structural modifications to allow more efficient harvesting of sunlight, either by reducing losses or by altering the spectral properties. The properties of nanomaterials that make them well-suited as active materials in photovoltaic devices (broadband absorption, high quantum yield, etc.) also make them ideal candidates for luminescent solar concentrators (LSCs). These devices also harvest solar energy, but instead of directly allowing charge generation, they act as downconverters for other photovoltaic cells. We review dye, thin film, and quantum dot based LSCs that have garnered a lot of attention in recent years as these devices face a resurgence given the advances in materials science and engineering which have led to novel quantum dots and hybrid semiconductors. The review ends with where the future of nanostructured photovoltaics is headed, what device designs and materials development are needed to achieve efficiencies beyond the Shockley-Queisser limits and fulfil the goal of the 3rd and 4th generation photovoltaics.

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Quaternary ammonium polyiodides as ionic liquid/soft solid electrolytes in dye-sensitized solar cells

Cited by 34 publications

References 45 publications

Research on dye sensitized solar cells: recent advancement toward the various constituents of dye sensitized solar cells for efficiency enhancement and future prospects

Research on dye sensitized solar cells: recent advancement toward the various constituents of dye sensitized solar cells for efficiency enhancement and future prospects

Progress on Electrolytes Development in Dye-Sensitized Solar Cells

Nanostructured photovoltaics

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