Ontology highlight
ABSTRACT:
SUBMITTER: Salehi A
PROVIDER: S-EPMC6534605 | biostudies-literature | 2019 May
REPOSITORIES: biostudies-literature
Nature communications 20190524 1
It is commonly accepted that a full bandgap voltage is required to achieving efficient electroluminescence (EL) in organic light-emitting diodes. In this work, we demonstrated organic molecules with a large singlet-triplet splitting can achieve efficient EL at voltages below the bandgap voltage. The EL originates from delayed fluorescence due to triplet fusion. Finally, in spite of a lower quantum efficiency, a blue fluorescent organic light-emitting diode having a power efficiency higher than s ...[more]