Effects of recombination order on open-circuit voltage decay measurements of organic and perovskite solar cells
- Non-geminate recombination, as one of the most relevant loss mechanisms in organic and perovskite solar cells, deserves special attention in research efforts to further increase device performance. It can be subdivided into first, second, and third order processes, which can be elucidated by the effects that they have on the time-dependent open-circuit voltage decay. In this study, analytical expressions for the open-circuit voltage decay exhibiting one of the aforementioned recombination mechanisms were derived. It was possible to support the analytical models with experimental examples of three different solar cells, each of them dominated either by first (PBDBT:CETIC-4F), second (PM6:Y6), or third (irradiated CH3NH3PbI3) order recombination. Furthermore, a simple approach to estimate the dominant recombination process was also introduced and tested on these examples. Moreover, limitations of the analytical models and the measurement technique itself were discussed.
Verfasserangaben: | Joachim VollbrechtORCiD, Viktor V. BrusORCiD |
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DOI: | https://doi.org/10.3390/en14164800 |
ISSN: | 1996-1073 |
Titel des übergeordneten Werks (Englisch): | Energies : open-access journal of related scientific research, technology development and studies in policy and management / Molecular Diversity Preservation International (MDPI) |
Verlag: | MDPI |
Verlagsort: | Basel |
Publikationstyp: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Datum der Erstveröffentlichung: | 06.08.2021 |
Erscheinungsjahr: | 2021 |
Datum der Freischaltung: | 07.07.2023 |
Freies Schlagwort / Tag: | non-geminate recombination; open-circuit voltage decay; organic solar cells; perovskite solar cells; recombination order |
Band: | 14 |
Ausgabe: | 16 |
Aufsatznummer: | 4800 |
Seitenanzahl: | 16 |
Fördernde Institution: | Feodor-Lynen Ruckkehrstipendium by the Alexander von Humboldt StiftungAlexander von Humboldt Foundation |
Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
DDC-Klassifikation: | 6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten |
Peer Review: | Referiert |
Publikationsweg: | Open Access / Gold Open-Access |
DOAJ gelistet | |
Lizenz (Deutsch): | CC-BY - Namensnennung 4.0 International |