Strategies for improving the efficiency of blue OLEDs for a lab-on-chip sensor - LAAS - Laboratoire d'Analyse et d'Architecture des Systèmes Accéder directement au contenu
Communication Dans Un Congrès Année : 2024

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

Résumé

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.
Fichier non déposé

Dates et versions

hal-04598572 , version 1 (03-06-2024)

Identifiants

  • HAL Id : hal-04598572 , version 1

Citer

Luis Abraham Lozano Hernandez, Isabelle Séguy, Ludovic Salvagnac, Julien Roul, Fabien Lemarchand, et al.. Strategies for improving the efficiency of blue OLEDs for a lab-on-chip sensor. SPIE Photonics Europe. Organics Electronics and Photonics: Fundamentals and devices, SPIE, Apr 2024, Strasbourg, France. ⟨hal-04598572⟩
62 Consultations
0 Téléchargements

Partager

Gmail Mastodon Facebook X LinkedIn More