ISIS Neutron and Muon Source Data Journal

Morphological Stability of Organic Solar Cell Structures during Aging

Abstract: Organic photovoltaics (OPVs) have recently surpassed 10% power conversion efficiency (PCE), a key milestone towards commercialisation. Achieving validated lifetimes beyond 10 years is equally important, yet the physical degradation of active organic layers during device operation is not yet well understood. Efficient OPVs rely on solid-state light absorbing mixtures of electron donating and accepting molecules with nanometre-scale domains. As the initial microstructure in OPVs is kinetically trapped during fabrication, thermal- and photo-induced demixing arising from prolonged operation can severely degrade PCE. We propose to use neutron reflectometry at OFFSPEC on pristine and aged OPVs using a new series of high-performance donor polymers to probe microstructural evolution and layer demixing, helping reveal design strategies for significant OPV lifetime improvement.

Principal Investigator: Dr Josue Martinez Hardigree
Experimenter: Dr Sameer Vajjala Kesava
Experimenter: Mr Giulio Mazzotta
Experimenter: Mr Ivan Ramirez
Experimenter: Dr Owen Lozman
Experimenter: Dr Graham Morse
Experimenter: Dr Robert Dalgliesh
Experimenter: Dr Sarah Rogers
Local Contact: Dr Jos Cooper
Experimenter: Dr Moritz Riede

DOI: 10.5286/ISIS.E.RB1520175

ISIS Experiment Number: RB1520175

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Josue Martinez Hardigree et al; (2015): Morphological Stability of Organic Solar Cell Structures during Aging, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1520175

Data is released under the CC-BY-4.0 license.