Abstract
Langmuir - Blodgett luminescent thin films have been using for several applications such as biosensors [1,2] , optoelectronics devices [3] and luminescent materials [4].Lanthanides ions such as Eu3+ e Tb3+ present special applications due to their thin lines emission bands interesting to be used in optical signals, thin layer in OLEDs showing orange-red and green emission, respectively. H…