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Journal Articles Energy & Environmental Science Year : 2024

Water-based Solar Cells Over 10% Efficiency: Designing Soft Nanoparticles for Improved Processability

Alexandre Holmes
  • Function : Author
Valentina Maruzzo
  • Function : Author
Giulia Folpini
  • Function : Author
Nadia Barbero
  • Function : Author
M. Schmutz
Annamaria Petrozza
  • Function : Author
Giuseppe Maria Paternò
  • Function : Author
Guillaume Wantz
  • Function : Author
Sylvain Chambon
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Abstract

Organic semiconductors are typically dissolved in organic solvents that are harmful to human health and the environment. To overcome this issue, these materials can be dispersed in water as nanoparticles to provide aqueous inks for more environmentally friendly solar cell manufacturing. Herein, we report the design of “soft” PTQ10:Y6 nanoparticles to decrease the annealing treatment (130°C/5 minutes) needed for processing the active layer and increase the conversion efficiency above 10%. Taking advantage of the nanoprecipitation mechanism, nanoparticles with intermixed donor/acceptor domains and a low degree of crystallinity were synthesized. Solar cells made with these anoparticles were more efficient and needed less energy to be processed than those made from miniemulsion inks, in which Y6 crystallinity was more important. They even reached more than 90% of the performances of devices made from organic solvents, closing the gap with the classical toxic process.
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Year Month Jours
Avant la publication
Sunday, December 15, 2024
Embargoed file
Sunday, December 15, 2024
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Dates and versions

hal-04346806 , version 1 (15-12-2023)

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Alexandre Holmes, Hugo Laval, Michele Guizzardi, Valentina Maruzzo, Giulia Folpini, et al.. Water-based Solar Cells Over 10% Efficiency: Designing Soft Nanoparticles for Improved Processability. Energy & Environmental Science, 2024, 17, pp.1107-1116. ⟨10.1039/d3ee03744d⟩. ⟨hal-04346806⟩
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