We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Toward High Efficiency Water Processed Organic Photovoltaics: Controlling the Nanoparticle Morphology with Surface Energies.
- Authors
Laval, Hugo; Holmes, Alexandre; Marcus, Matthew A.; Watts, Benjamin; Bonfante, Gwenaël; Schmutz, Marc; Deniau, Elise; Szymanski, Robin; Lartigau‐Dagron, Christine; Xu, Xiaoxue; Cairney, Julie M.; Hirakawa, Kazuhiko; Awai, Fumiyasu; Kubo, Takaya; Wantz, Guillaume; Bousquet, Antoine; Holmes, Natalie P.; Chambon, Sylvain
- 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.
- Subjects
WATER efficiency; NANOPARTICLES; SURFACE energy; SURFACE morphology; PHOTOVOLTAIC power generation; SOLAR cells; ELECTRON donors
- Publication
Advanced Energy Materials, 2023, Vol 13, Issue 26, p1
- ISSN
1614-6832
- Publication type
Article
- DOI
10.1002/aenm.202300249