Abstract
Organic Tris-(8-hydroxyquinoline)aluminum (Alq3) thin films, one of the most widely used electron transport as well as emissive materials in the organic electroluminescent (EL) devices, have been deposited on glass substrates by thermal evaporation process. The deposited Alq3 thin films were exposed to light in the normal ambient. The effect of light exposure on the fluorescence of Alq3 sample and formation of luminescent quencher has been studied using cyclic voltammeter and 3D contour emission spectroscopy. It is observed that the luminescent quencher can be formed in the Alq3 during the light exposure, quenching the emission of light exposed sample. It is found that the energy of excitons in the Alq3 molecule in the light exposed Alq3 thin films can be non-radiatively transferred to its neighbouring luminescent quencher, quenching the emission of light exposed Alq3 thin films.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
