ISIS Neutron and Muon Source Data Journal

Understanding the Role of Solvent Additives in Organic Photovoltaic Blends

Abstract: At Sheffield, organic solar cells (OSCs) have been made using a new class of materials called non-fullerene acceptors (NFAs) producing high efficiency devices (9-11%) in polymer blends. For OSCs containing ITIC, a NFA, the inclusion of solvent additives (e.g. 1,8-diioodocatane (DIO)) in the blend solution increases efficiency at a detriment to stability. This is not observed in OSCs containing PCBM, a more traditional material. SANS measurements at ISIS will allow us to probe the morphological stability of blend films by characterising the phase separation length scale between blend components. We also plan to do NR at D17, ILL on similar samples to study the vertical composition profiles of the blend films. SANS and NR will link the bulk morphology of the blends to device performance, helping us achieve high efficiency OSCs with real-world stability.

Principal Investigator: Professor Richard Jones
Experimenter: Dr Andrew Parnell
Experimenter: Dr Rachel Kilbride
Local Contact: Dr Robert Dalgliesh
Experimenter: Miss Emma Spooner
Experimenter: Professor David Lidzey

DOI: 10.5286/ISIS.E.RB2010389

ISIS Experiment Number: RB2010389

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:
Professor Richard Jones et al; (2020): Understanding the Role of Solvent Additives in Organic Photovoltaic Blends, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2010389

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