Combination of co-sensitization and Förster resonance energy transfer in natural-synthetic dye sensitized solar cells

Nakhaei, Roohollah; Razeghizadeh, Alireza; Shabani, Pejman; Ganji, Jabbar; Tabatabaee, Seyed Sajjad

doi:10.1016/j.optmat.2022.112690

Cited by 6 publications

(1 citation statement)

References 39 publications

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“…Literature reported FRET-including DSSCs are rather few. Reports were focused on co-sensitization and FRET of TiO2 DSSCs, and PCE values of these systems were at most 5.17% [44][45][46][47][48]. Compared with the present report, these PCE values are very low.…”

Section: Discussioncontrasting

confidence: 81%

Cascade Förster Resonance Energy Transfer Studies for Enhancement of Light Harvesting on Dye-Sensitized Solar Cells

2022

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This work reports cascade Förster resonance energy transfer (FRET)-based n-type (ZnO) and p-type (NiO) dye-sensitized solar cells (DSSCs), discussing approaches to enhance their overall performance. Although DSSCs suffer from poorer performance than other solar cells, the use of composites with carbon dot (Cdot) can enhance the power conversion efficiency (PCE) of DSSCs. However, further improvements are demanded through molecular design to stimulate DSSCs. Here, a photosensitized system based on a cascade FRET was induced alongside the conventional photosensitizer dye (N719). To N719 in a DSSC is transferred the energy cascaded through donor fluorescence materials (pyrene, 3-acetyl-7-N,N-diethyl-coumarin or coumarin and acridine orange), and this process enhances the light-harvesting properties of the sensitizers in the DSSC across a broad region of the solar spectrum. PCE values of 10.7 and 11.3% were achieved for ZnO/Cdot and NiO/Cdot DSSCs, respectively. These high PCE values result from the energy transfer among multi-photosensitizers (cascade FRET fluorophores, N719, and Cdot). Moreover, Cdot can play a role in intensifying the adsorption of dyes and discouraging charge recombination on the semiconductor. The present results raise expectations that a significant improvement in photovoltaic performance can be attained of DSSCs exploiting the cascade FRET photonics phenomenon.

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