Singlet Fission of Non-polycyclic Aromatic Molecules in Organic Photovoltaics

Singlet Fission of Non-polycyclic Aromatic Molecules in Organic Photovoltaics

Singlet fission of thienoquinoid compounds in organic photovoltaics is demonstrated. The escalation of the thienoquinoid length of the compounds realizes a suitable packing structure and energy levels for singlet fission. The magnetic‐field dependence of the photocurrent and the external quantum eff...

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Veröffentlicht in:Advanced materials (Weinheim) 2016-02, Vol.28 (8), p.1585-1590
Hauptverfasser: Kawata, So, Pu, Yong-Jin, Saito, Ayaka, Kurashige, Yuki, Beppu, Teruo, Katagiri, Hiroshi, Hada, Masaki, Kido, Junji
Format: Artikel
Sprache:eng
Schlagworte:
Devices
Energy levels
Excitons
Fission
multiple carrier generation
organic photovoltaics
Photocurrent
Photovoltaic cells
Quantum efficiency
singlet fission
Solar cells
thienoquinoidal compounds
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Beschreibung
Zusammenfassung:Singlet fission of thienoquinoid compounds in organic photovoltaics is demonstrated. The escalation of the thienoquinoid length of the compounds realizes a suitable packing structure and energy levels for singlet fission. The magnetic‐field dependence of the photocurrent and the external quantum efficiency of the devices reveal singlet fission of the compounds and dissociation of triplet excitons into charges.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201504281