{
  "abstract": "To avoid environmental impact and health concerns arising from fabrication of perovskite solar cells, it is paramount to replace conventional perovskite precursor solvent systems with more eco-friendly and safe solvents. In this study, γ -valerolactone (GVL) was employed as green solvent and the implications of its use for coating of photoactive perovskite thin films were assessed by a combination of solution characterization, COSMO-RS calculations and comparison of photovoltaic performance of devices processed from GVL and DMF:DMSO. The potential of GVL to solubilize the perovskite precursor could be explained by calculation of the solvent’s σ-surface, highlighting it as a promising alternative to conventional perovskite precursor solvents. A strong tendency for perovskite formation in the photoactive α-phase was found when processing from GVL, opening ways for perovskite coating without antisolvent quenching and with only mild annealing steps. Finally, the same high power conversion efficiency of > 21 % could be demonstrated for perovskite solar cells processed from both types of solvents, demonstrating the feasibility to use GVL as green solvent for perovskite PV fabrication.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 9,
  "authors": [
    {
      "name": "Lea Schwersenz"
    },
    {
      "name": "Luis Eduardo Ramirez Cardenas"
    },
    {
      "name": "Michael Daub"
    },
    {
      "name": "Harald Scherer"
    },
    {
      "name": "Kaleb Julius Strahringer"
    },
    {
      "name": "Ivonne Rodriguez Donis"
    },
    {
      "name": "Sophie Thiebaud-Roux"
    },
    {
      "name": "Uli Würfel"
    },
    {
      "name": "Markus Kohlstädt"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dx55nwgtpt834.bib",
  "cited_by": 0,
  "doi": "10.1016/j.solener.2026.115088",
  "fulltext_url": null,
  "id": "dx55nwgtpt834",
  "issns": [
    "0038-092X",
    "1471-1257"
  ],
  "landing_url": "https://hal.science/hal-05744819v1",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.sde"
    ],
    [
      "hal",
      "0.spi"
    ],
    [
      "openalex",
      "2208|Perovskite Materials and Applications"
    ]
  ],
  "openalex": "W7212131458",
  "pdf_url": "https://www.sciencedirect.com/science/article/pii/S0038092X26007772/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-10",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/dx55nwgtpt834.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:33Z",
      "native_id": "hal-05744819",
      "source": "hal",
      "url": "https://hal.science/hal-05744819v1"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "hal:0.sde",
      "subfield": "environmental-science"
    }
  ],
  "title": "Unravelling the solvent-solute interactions between γ-valerolactone and FAPbI3 for realization of perovskite solar cells from green solvents",
  "title_text": "Unravelling the solvent-solute interactions between γ-valerolactone and FAPbI3 for realization of perovskite solar cells from green solvents",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:33Z",
  "url": "https://research.draconitic.com/paper/dx55nwgtpt834",
  "venue": "Solar Energy",
  "versions": []
}