A novel σ-linkage to dianchor dyes for efficient dyes sensitized solar cells: 3-methyl-1,1-cyclohexane

Duerto, Isolda; García-Palacín, Marta; Barrios, Daniel; Garı́n, Javier; Orduna, Jesús; Villacampa, Belén; Blesa, María Jesús

doi:10.1016/j.dyepig.2019.107945

Cited by 10 publications

(2 citation statements)

References 36 publications

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“…The DSSC device fabrication and its corresponding characterization are described in the Supplementary Materials. The electrolyte was the I 3 − /I − system in anhydrous acetonitrile [27]. The photoanode was sensitized by AT-Pyri (0.1 mM CH 2 Cl 2 dye solution) for 72 h. This chromophore was constituted by an aniline as the donor, a thiophene as the π-spacer and a pyrimidine as the anchoring and acceptor group, all this favoring the electron charge transfer towards the semiconductor.…”

Section: Dsscs Performancementioning

confidence: 99%

Metal-Free Counter Electrodes for DSSCs Based on Nitrogen-Doped Reduced Graphene Oxide Materials

et al. 2023

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The importance of counter electrodes in Dye Sensitized Solar Cells (DSSCs) cannot be neglected as they enable the transfer of electrons across the outer circuit, thereby facilitating the reduction reaction of the I3−/I− redox electrolyte. However, the dissolution and deposition of the usual platinum layer on the counter electrode has resulted in contamination concerns. To address this issue, metal-free counter electrodes made of reduced graphene oxide (rGO) aerogels were developed and their catalytic performance towards I3− reduction was evaluated. The reduced graphene materials were characterized, and the fitting analysis of XPS revealed the presence of various nitrogen species, with the primary peaks attributed to pyridinic and pyrrolic nitrogen. The hydrothermal treatment of graphene oxide (GO) resulted in a higher graphitic character and the intensification of the contacts between graphene nanosheets, which should entail higher electrical conductivity, both in-plane and between rGO sheets. Additionally, the presence of nitrogen-provided active sites promoted the catalytic reduction of the electrolyte. Encouragingly, good charge transfer rates were observed between the counter electrode and the electrolyte in the assembled DSSCs, resulting in good photocurrents and exceptional stability over the course of nearly 1200 h after cell assembly. The results obtained suggest that these GO-based systems are promising candidates for developing metal-free counter electrodes for DSSC, supporting the interest of further study.

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Section: Dsscs Performancementioning

confidence: 99%

Metal-Free Counter Electrodes for DSSCs Based on Nitrogen-Doped Reduced Graphene Oxide Materials

et al. 2023

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“…Scheme 1 shows the synthesis of the compound AT-L which was obtained by a Knoevenagel condensation in chloroform between the formyl group of compound 1 [21] and cyanoacetic acid with piperidine as catalyst in basic media.…”

Section: Synthesismentioning

confidence: 99%

Difunctionalized dyes for DSSCs based on two different scaffolds: p-tert-butylcalix[4]arene or isophthalic acid

et al. 2020

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Enhancing the temporal stability of DSSCs with novel vinylpyrimidine anchoring and accepting group

et al. 2022

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A novel σ-linkage to dianchor dyes for efficient dyes sensitized solar cells: 3-methyl-1,1-cyclohexane

Cited by 10 publications

References 36 publications

Metal-Free Counter Electrodes for DSSCs Based on Nitrogen-Doped Reduced Graphene Oxide Materials

Metal-Free Counter Electrodes for DSSCs Based on Nitrogen-Doped Reduced Graphene Oxide Materials

Difunctionalized dyes for DSSCs based on two different scaffolds: p-tert-butylcalix[4]arene or isophthalic acid

Enhancing the temporal stability of DSSCs with novel vinylpyrimidine anchoring and accepting group

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