ISIS Neutron and Muon Source Data Journal

Controlling the morphology of fullerene-free polymer solar cells using additives: a SANS study

Abstract: We have recently demonstrated, using small angle neutron scattering in combination with other techniques, that in organic photovoltaic devices (OPVs) the additive 1,8-diiodooctane (DIO) largely remains in the film after spin-coating acting as a plasticizer to increase molecular mobility and allowing morphological improvement of the film with a consequent increase in power conversion efficiency (PCE) of the OPV device. This new finding opens new perspectives into the morphology control of OPVs, namely through the use of additives and mixtures of additives possessing different affinities towards the polymer and the acceptor which will allow us to optimize the corresponding morphology and PCE. In this proposal we plan to use this strategy to improve the morphology and PCE of fullerene-free solar cells based on the high efficient system PBDB-T:ITIC which has a reported PCE > 12%.

Principal Investigator: Dr Gabriel Bernardo
Experimenter: Dr Gabriel Perez
Experimenter: Dr Hugo Gaspar
Experimenter: Professor Richard Jones
Experimenter: Dr Steve King
Experimenter: Dr Andrew Parnell

DOI: 10.5286/ISIS.E.RB1720412

ISIS Experiment Number: RB1720412

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 Gabriel Bernardo et al; (2018): Controlling the morphology of fullerene-free polymer solar cells using additives: a SANS study, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1720412

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