title: Dynamic doping and degradation in sandwich-type light-emitting electrochemical cells.
abstract: Photoluminescence spectroscopy has been performed in situ during device operation and after switch-off on ionic transition metal complex (iTMC)-based sandwich-type light-emitting electrochemical cells (LECs). It is demonstrated that the photoluminescence of the LECs decreases with increasing operating time. For operating times up to three hours the decline in photoluminescence is fully recoverable after switching off the bias. These results imply that doping of the iTMC layer is responsible, not only, for the turn-on of LECs but also for their lifetimes.
authors: Department of Materials Science VI: Materials for Electronics and Energy Technology, Friedrich-Alexander University of Erlangen-Nuremberg, Martensstr. 7, DE-91058 Erlangen, Germany.
authors: Sebastian B
authors: SB
authors: Meier
authors: David
authors: D
authors: Hartmann
authors: Daniel
authors: D
authors: Tordera
authors: Henk J
authors: HJ
authors: Bolink
authors: Albrecht
authors: A
authors: Winnacker
authors: Wiebke
authors: W
authors: Sarfert