ISIS Neutron and Muon Source Data Journal

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

Abstract: We have recently demonstrated, using neutron reflectivity 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 Andrew Parnell
Experimenter: Professor Richard Jones
Local Contact: Dr Jos Cooper
Experimenter: Dr Gabriel Perez
Experimenter: Dr Rachel Kilbride

DOI: 10.5286/ISIS.E.RB1720415

ISIS Experiment Number: RB1720415

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; (2017): Controlling the morphology of fullerene-free polymer solar cells using additives: a neutron reflectivity study, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1720415

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