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Article Dans Une Revue Advanced Energy Materials Année : 2023

Toward High Efficiency Water Processed Organic Photovoltaics: Controlling the Nanoparticle Morphology with Surface Energies

Matthew Marcus
  • Fonction : Auteur
Benjamin Watts
Gwenaël Bonfante
  • Fonction : Auteur
Elise Deniau-Lejeune
Robin Szymanski
  • Fonction : Auteur
Xiaoxue Xu
Julie Cairney
Kazuhiko Hirakawa
Fumiyasu Awai
  • Fonction : Auteur
Takaya Kubo
  • Fonction : Auteur
Guillaume Wantz
Antoine Bousquet
Natalie Holmes
Sylvain Chambon

Résumé

Abstract Here efficient organic photovoltaic devices fabricated from water‐based colloidal dispersions with donor:acceptor composite nanoparticles achieving up to 9.98% power conversion efficiency (PCE) are reported. This high efficiency for water processed organic solar cells is attributed to morphology control by surface energy matching between the donor and the acceptor materials. Indeed, due to a low interfacial energy between donor and the acceptor, no large phase separation occurs during the nanoparticle formation process as well as upon thermal annealing. Indeed, synchrotron‐based scanning transmission X‐ray microscopy reveals that the internal morphology of composite nanoparticles is intermixed as well as the active layer morphology after thermal treatment. The PCE of this system reaches 85% that of devices prepared from chlorinated solvent. The gap between water‐based inks and organic solvent‐based inks gets narrower, which is promising for the development of eco‐friendly processing and fabrication of organic photovoltaics.
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Dates et versions

hal-04234257 , version 1 (10-10-2023)

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Hugo Laval, Alexandre Holmes, Matthew Marcus, Benjamin Watts, Gwenaël Bonfante, et al.. Toward High Efficiency Water Processed Organic Photovoltaics: Controlling the Nanoparticle Morphology with Surface Energies. Advanced Energy Materials, 2023, 13 (26), ⟨10.1002/aenm.202300249⟩. ⟨hal-04234257⟩
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