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Analysis of institutional authors

Arredondo BCorresponding AuthorCarlos Pérez-Martínez JAuthorMartín-Martín DAuthorDel Pozo GAuthorHernández-Balaguera EAuthorRomero BAuthor

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Influence of solvent additive on the performance and aging behavior of non-fullerene organic solar cells

Publicated to:Solar Energy. 232 120-127 - 2022-01-15 232(), DOI: 10.1016/j.solener.2021.12.052

Authors: Arredondo, Belen; Perez-Martinez, Jose Carlos; Munoz-Diaz, Laura; Lopez-Gonzalez, Maria del Carmen; Martin-Martin, Diego; del Pozo, Gonzalo; Hernandez-Balaguera, Enrique; Romero, Beatriz; Lamminaho, Jani; Turkovic, Vida; Madsen, Morten

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Abstract

The performance of organic solar cells has improved significantly in recent years due to the use of non-fullerene acceptors (NFA). While processing additives are typically added to the active layer blends to enhance device performance in NFA organic solar cells, their impact on device degradation remains unclear. In this work we have compared the performance, in pristine and degraded state, between air-processed slot-die coated NFA ITO-free organic solar cells with and without the processing additive DIO, using a structure of PET/Ag/ZnO/PBDB-T:ITIC/FHC PEDOT:PSS. We observed an improvement in the power conversion efficiency of the devices when adding DIO, from 4.03% up to 4.97%. The evolution of the performance for both devices under ISOS-L1 life testing protocol reveals that the drop in efficiency is mainly due to a decay of JSC for both cells. In the short time scale the efficiency of non-DIO cells decays faster than the DIO cells, whereas in the long time scale the efficiency of non-DIO cells tends to stabilize sooner. Carrier mobilities estimated from impedance measurements decrease with time at similar rate for both degraded samples. Besides, DIO devices present a steep increase of the series resistance with time causing a decrease of the FF and thus of the efficiency. Moreover, in both degraded devices, the open-circuit voltage saturates with increasing illumination intensity. Numerical simulations reveal that a reduced anode work function of 5 eV is needed to fit experimental data. © 2021 International Solar Energy Society

Keywords

degradationdio additivenon-fullerenerecombinationslot-die coatingActive layerAgeing behaviorButyric acidConducting polymersDegradationDevice degradationDevice performanceDio additiveEfficiencyElectric resistanceFuel cellFullerenesNon-fullereneOpen circuit voltageOrganic solar cellsPerformancePerformance assessmentSimulationSlot diesSlot-die coatingSlot-die coatingsSolventSolvent additives

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Solar Energy due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2022, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Materials Science (Miscellaneous).

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 1.11. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 14, 2024)

This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:

  • Field Citation Ratio (FCR) from Dimensions: 2.64 (source consulted: Dimensions Jun 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-06-04, the following number of citations:

  • WoS: 18
  • Scopus: 18
  • OpenCitations: 10

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-06-04:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 22.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 21 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 3.85.
  • The number of mentions on the social network X (formerly Twitter): 4 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Denmark.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Arredondo Conchillo, Belén) .

the author responsible for correspondence tasks has been Arredondo Conchillo, Belén.