We present a new model for an organic laser diode based on rate equations for polarons, singlet and triplet excitons, both in host and dopant molecules, and photon densities. The model is validated by comparing calculated optical responses with measurements on high-speed low-Q OLEDS under pulsed nanosecond electrical excitation. The model confirms the threshold-current density of ~500A/cm2 observed in the recent first experiment with indication of lasing in an OLED with DFB-grating in the group of Adachi , if the Q-factor ~20K and no residual absorption occurs.
|Status||Gepubliceerd - 4 dec 2020|
|Evenement||European Semiconductor Laser Workshop - Online, TU/e, Eindhoven, Nederland|
Duur: 4 dec 2020 → 5 dec 2020
|Congres||European Semiconductor Laser Workshop|
|Verkorte titel||ESLW 2020|
|Periode||4/12/20 → 5/12/20|