Plasmon induced enhancement of the electroluminescence signal of thin insulating polypropylene films

Kremena Makasheva (1) , L. Montanari (2) , Adriana Scarangella (2) , G. Teyssedre (3)

1 LAPLACE-ScIPRA - Sciences et Ingénierie des Plasmas Réactifs et des Arcs
2 LAPLACE - LAboratoire PLasma et Conversion d'Energie
3 LAPLACE-DSF - Diélectriques Solides et Fiabilité

Chemical defects are of deleterious nature for the electrical properties of insulating polymers and can largely degrade their performance. Although these defects usually leave spectroscopic signatures in terms of characteristic luminescence peaks, it is nontrivial to assign, in an unambiguous way, the peaks to specific groups of defects because of the low intensity of the signal. In this work, we go beyond the traditional electroluminescence technique to record spectroscopic features of insulating polymers. By introducing a single plan of silver nanoparticles (AgNPs) at the near-surface of thin polypropylene films, the electroluminescent signal is enhanced by plasmon-related process. The latter leads much higher intensity and phase-stabilization of the recorded spectra, thus improving the assignment of characteristic luminescence peaks.

Domaines: Sciences de l'ingénieur [physics]; Matériaux; Plasmas

Kremena Makasheva, L. Montanari, Adriana Scarangella, G. Teyssedre. Plasmon induced enhancement of the electroluminescence signal of thin insulating polypropylene films. 2020 IEEE 20th International Conference on Nanotechnology (IEEE-NANO), Jul 2020, Montreal (Virtual), Canada. pp.44-47, ⟨10.1109/NANO47656.2020.9183435⟩. ⟨hal-02940243⟩