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Degradation through Directional Self-Doping and Homogeneous Density of Recombination Centers Hindered by 1,8-Diiodooctane Additive in Non-Fullerene Organic Solar Cells
dc.contributor.author | Almora Rodríguez, Osbel | |
dc.contributor.author | Wiegand, Julius | |
dc.contributor.author | López Varo, Pilar | |
dc.contributor.author | Matt, Gebhard Josed | |
dc.contributor.author | Brabec, Christoph J. | |
dc.date.accessioned | 2021-06-10T16:09:35Z | |
dc.date.available | 2021-06-10T16:09:35Z | |
dc.date.issued | 2021-03-01 | |
dc.identifier.citation | Almora, O., Wiegand, J., López-Varo, P., Matt, G.J. and Brabec, C.J. (2021), Degradation through Directional Self-Doping and Homogeneous Density of Recombination Centers Hindered by 1,8-Diiodooctane Additive in Non-Fullerene Organic Solar Cells. Sol. RRL, 5: 2100024. https://doi.org/10.1002/solr.202100024 | ca_CA |
dc.identifier.issn | 2367-198X | |
dc.identifier.uri | http://hdl.handle.net/10234/193384 | |
dc.description.abstract | Non-fullerene-based organic solar cells (OSCs) have recently proven to perform with efficiencies above 18%. This is an important milestone for one of the most promising technologies in the fields of flexible and transparent/semitransparent photovoltaics. However, the stability of OSCs is still a challenging issue to meet the industry requirements. Herein, several devices with IT-4F:PM6 as the active layer with and without 1,8-Diiodooctane (DIO) additive are characterized before and after a 1400 h degradation test under 1 sun white light-emitting diode (LED) illumination intensity. The optoelectronic study via impedance spectroscopy under illumination at quasi-open-circuit correlates the use of DIO as an additive with a retarded degradation behavior and an overall improved device performance. In dark conditions, theMott–Schottky analysis suggests that samples without DIO develop selfdoping during degradation, changing the p-i-n doping profile into a p–n type, most likely related to the evolution of the blend demixing. These mechanisms are further confirmed by drift-diffusion simulations. Space-oriented redistribution of shallow trap levels (self-doping) and homogeneous increase in deep-trap levels (nonradiative recombination) are shown to be hindered by the use of the DIO additive. | ca_CA |
dc.format.extent | 7 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Wiley | ca_CA |
dc.relation | Peroxis-Ground-Breaking Perovskite technologies for advanced X-Ray medical imaging systems | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/CNE/1.0/ | * |
dc.subject | Drift-diffusion simulation | ca_CA |
dc.subject | Impedance spectroscopy | ca_CA |
dc.subject | Intrinsic doping | ca_CA |
dc.subject | Mott–Schottky analyses | ca_CA |
dc.subject | Organic solar cells | ca_CA |
dc.title | Degradation through Directional Self-Doping and Homogeneous Density of Recombination Centers Hindered by 1,8-Diiodooctane Additive in Non-Fullerene Organic Solar Cells | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | https://doi.org/10.1002/solr.202100024 | |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | ca_CA |
dc.relation.publisherVersion | https://onlinelibrary.wiley.com/doi/full/10.1002/solr.202100024 | ca_CA |
dc.type.version | info:eu-repo/semantics/publishedVersion | ca_CA |
oaire.awardNumber | 871336 | ca_CA |
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