Format:
1 Online-Ressource (ix, 191 Seiten, 7422 KB)
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Illustrationen, Diagramme
Content:
Organic solar cells offer an efficient and cost-effective alternative for solar energy harvesting. This type of photovoltaic cell typically consists of a blend of two organic semiconductors, an electron donating polymer and a low molecular weight electron acceptor to create what is known as a bulk heterojunction (BHJ) morphology. Traditionally, fullerene-based acceptors have been used for this purpose. In recent years, the development of new acceptor molecules, so-called non-fullerene acceptors (NFA), has breathed new life into organic solar cell research, enabling record efficiencies close to 19%. Today, NFA-based solar cells are approaching their inorganic competitors in terms of photocurrent generation, but lag in terms of open circuit voltage (V_OC). Interestingly, the V_OC of these cells benefits from small offsets of orbital energies at the donor-NFA interface, although previous knowledge considered large energy offsets to be critical for efficient charge carrier generation. In addition, there are several other electronic and ...
Note:
Volltext: PDF
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Literaturverzeichnis: Seite 116-134
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kumulative Dissertation
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Dissertation Universität Potsdam 2022
Additional Edition:
Erscheint auch als Druck-Ausgabe Perdigón-Toro, Lorena On the generation and fate of free carriers in non-fullerene acceptor organic solar cells Potsdam, 2022
Language:
English
Keywords:
Fotovoltaik
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Organische Solarzelle
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Ladungstransport
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Ladungstransfer
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Hochschulschrift
DOI:
10.25932/publishup-55807
URN:
urn:nbn:de:kobv:517-opus4-558072
URL:
https://doi.org/10.25932/publishup-55807
URL:
https://nbn-resolving.org/urn:nbn:de:kobv:517-opus4-558072
URL:
https://d-nb.info/1265567123/34
Author information:
Neher, Dieter 1960-
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