Aggregation behavior of differently substituted Ru(II)-complex dyes as sensitizers for electrodeposited ZnO solar cells

Asdim,; Ichinose, Keigo; Inomata, Tomohiko; Masuda, Hideki; Yoshida, Tsukasa

doi:10.1016/j.jphotochem.2012.04.024

Cited by 7 publications

(3 citation statements)

References 20 publications

(25 reference statements)

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“…For example, in the case of the Ru-based dye N3 (62), long sensitization times promote dye aggregation, as the dye loading increases with exposure time, resulting in a decreased PCE. 106 Nevertheless, for other dyes, such as 63, adsorption saturation of TiO2 films in dye solution occurs only after several hours, which suggests the spontaneous formation of a monolayer. 106 Several examples nicely illustrate how the sensitization solvent can significantly influence the formation of aggregates.…”

Section: Changing the Solution Conditions Of Dye Sensitizationmentioning

confidence: 99%

“…106 Nevertheless, for other dyes, such as 63, adsorption saturation of TiO2 films in dye solution occurs only after several hours, which suggests the spontaneous formation of a monolayer. 106 Several examples nicely illustrate how the sensitization solvent can significantly influence the formation of aggregates. For the anionic merocyanine dye 64, sensitization in acetonitrile leads to the simultaneous formation of aggregates and monomers on nanostructured TiO2 films, 107 while sensitization in Aerosol-OT/heptane solutions leads to the predominant formation of monomers.…”

Section: Changing the Solution Conditions Of Dye Sensitizationmentioning

confidence: 99%

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Dye aggregation in dye-sensitized solar cells

2017

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Section: Changing the Solution Conditions Of Dye Sensitizationmentioning

confidence: 99%

Section: Changing the Solution Conditions Of Dye Sensitizationmentioning

confidence: 99%

Dye aggregation in dye-sensitized solar cells

2017

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“…Sensitization is an important step in the preparation of DSSCs; dye baths (solvents and their concentrations) have an important impact on dye aggregation by affecting the anchoring mode, adsorption capacity and absorption spectrum of dyes [ 147 , 148 , 149 ]. By influencing the anchoring mode of the dye, the solvent can control the arrangement mode on the TiO 2 surface to achieve the purpose of regulating aggregation.…”

Section: Dye Aggregation In Dsscsmentioning

confidence: 99%

Cause, Regulation and Utilization of Dye Aggregation in Dye-Sensitized Solar Cells

Testoff

Wang

2020

Molecules

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As an important member of third generation solar cell, dye-sensitized solar cells (DSSCs) have the advantages of being low cost, having an easy fabrication process, utilizing rich raw materials and a high-power conversion efficiency (PCE), prompting nearly three decades as a research hotspot. Recently, increasing the photoelectric conversion efficiency of DSSCs has proven troublesome. Sensitizers, as the most important part, are no longer limited to molecular engineering, and the regulation of dye aggregation has become a widely held concern, especially in liquid DSSCs. This review first presents the operational mechanism of liquid and solid-state dye-sensitized solar cells, including the influencing factors of various parameters on device efficiency. Secondly, the mechanism of dye aggregation was explained by molecular exciton theory, and the influence of various factors on dye aggregation was summarized. We focused on a review of several methods for regulating dye aggregation in liquid and solid-state dye-sensitized solar cells, and the advantages and disadvantages of these methods were analyzed. In addition, the important application of quantum computational chemistry in the study of dye aggregation was introduced. Finally, an outlook was proposed that utilizing the advantages of dye aggregation by combining molecular engineering with dye aggregation regulation is a research direction to improve the performance of liquid DSSCs in the future. For solid-state dye-sensitized solar cells (ssDSSCs), the effects of solid electrolytes also need to be taken into account.

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