Impact of Transparent Conducting Oxide on the Performance of Dye‐Sensitised Solar Cells for Indoor Applications

Solar RRL, Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

Improving the performance of dye‐sensitised solar cells (DSC) under artificial light sources and at low intensities requires preserving adequate electron transport properties in sensitised photoanode that are characteristic DSC operation 1 sun. Besides, parasitic resistance optical losses must be reduced. In this respect, impact chemical electrical transparent conducting oxide (TCO) has somehow been overlooked. Considering systematic reduction diffusion length as quasi‐Fermi level regime is approached, subtle variations TiO 2 its interaction with TCO substrate can compromise optimal indoor illumination. work, DSCs fabricated commercial fluorine‐doped tin (FTO) indium (ITO) substrates, well newly prepared ITO substrates varying conductivity, analysed. Furthermore, a variation preparation conditions for ‐based photoanodes was conducted, thermal treatments two different annealing temperatures (450 550°C). Photovoltaic characterisation analysis impedance response reveal conductivity proves to only adverse sun illumination, deteriorating fill factor due series voltage drop. contrast, illumination intensity, all studied show comparable performance, which attributed negligible drop over related significantly lower photocurrent. As consequence, less critical when selecting applications. However, choice affects quality photoanodes, leading shorter lengths some cases. Interestingly, temperature plays role homogenising differences observed while also enhancing length, ensuring efficient collection conditions.

Language: Английский

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Impact of ethynyl linkage on indoor photovoltaic performance of triphenylimidazole-phenothiazine dyes with dual-species copper electrolyte

Solar Energy, Journal Year: 2025, Volume and Issue: 288, P. 113264 - 113264

Published: Jan. 18, 2025

Language: Английский

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Enhancing light harvesting in bilayered dye-sensitized solar cells by tailoring light scattering with electrospun TiO₂ nanofibers

RSC Advances, Journal Year: 2025, Volume and Issue: 15(8), P. 6171 - 6182

Published: Jan. 1, 2025

Application of a scattering layer with anatase TiO 2 fibers on DSSC device enhanced the power conversion by 60% (8.67 ± 0.58%), primarily due to combined effects improved light harvesting through and dye anchoring.

Language: Английский

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Single Component Dye-Sensitized Solar Cells Enabled by Copper Chemistry: Introduction of the Retro Cell

Energy & Fuels, Journal Year: 2025, Volume and Issue: 39(11), P. 5604 - 5611

Published: March 7, 2025

The possibility of utilizing a single molecule to act as both chromophore and redox shuttle in new configuration dye-sensitized solar cell (DSSC) is investigated. This design, termed retro cell, exploits the copper chromophore, [Cu(dsbtmp)2]+ (dsbtmp = bis(2,9-di(sec-butyl)-3,4,7,8-tetramethyl-1,10-phenanthroline), which has been shown have excited state lifetimes excess microsecond, enabling sensitization TiO2 while dissolved solution. oxidized can then diffuse counter electrode be regenerated. concept simplifies device components fabrication eliminates charge transfer step compared that traditional DSSCs. Initial investigations show viable; however, performance suboptimal. We found addition 4-tert-butylpyridine (TBP) electrolyte plays crucial role energy conversion. Evidence TBP displacing one dsbtmp ligands [Cu(dsbtmp)2]2+ complex presented, likely an important reducing recombination collection. performance-limiting steps routes improved viability are further discussed.

Language: Английский

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Synthesis and evaluation of new isoquinoline diimide derivatives as small molecule acceptors for organic solar cells

Tetrahedron, Journal Year: 2025, Volume and Issue: unknown, P. 134616 - 134616

Published: March 1, 2025

Language: Английский

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