7 - 11 April 2024
Strasbourg, France
Conference 13013 > Paper 13013-55
Paper 13013-55

Strategies for improving the efficiency and lifetime of blue OLEDs for a lab-on-chip sensor

10 April 2024 • 17:45 - 19:45 CEST | Galerie Schweitezer, Niveau/Level 0

Abstract

A highly emissive blue organic light emitting diodes (OLED) for use as an algae excitation source in a biosensor was designed and optimized to meet spectral filtering requirements of the system. This source needs to exhibit high emission around 470-480 nm (algae absorption) combined with low emission in the algae fluorescence bandwidth (550-600 nm) in order to avoid any overlapping signal in the biosensor’s sensitivity range. To address these issues, a microcavity device (MOLED) was studied and optimized. In order to further decrease the residual parasitic emission in the green spectral range, an additional filter was also integrated in the device. An improvement in peak intensity of 2.7 times the reference value was obtained, as well as a significant reduction of the parasitic emission in the green range. These improvements in peak intensity and spectral filtering should lead to a suitable blue OLED excitation source for compact optical biosensors.

Presenter

Lab. d'Analyse et d'Architecture des Systèmes, Univ. de Toulouse, CNRS (France)
Author
Lab. d'Analyse et d'Architecture des Systèmes, Univ. de Toulouse, CNRS (France)
Author
Lab. d'Analyse et d'Architecture des Systèmes, Univ. de Toulouse, CNRS (France)
Author
Ludovic Salvagnac
Lab. d'Analyse et d'Architecture des Systèmes, Univ. de Toulouse, CNRS (France)
Author
Lab. d'Analyse et d'Architecture des Systèmes, Univ. de Toulouse, CNRS (France)
Author
Aix-Marseille Univ. (France), Ecole Centrale de Marseille (France), Institut Fresnel, CNRS (France)
Author
Antonin Moreau
Aix-Marseille Univ. (France), Ecole Centrale de Marseille (France), Institut Fresnel, CNRS (France)
Author
Aix-Marseille Univ. (France), Ecole Centrale de Marseille (France), Institut Fresnel, CNRS (France)
Presenter/Author
Lab. d'Analyse et d'Architecture des Systèmes, Univ. de Toulouse, CNRS (France)