Two Faculty members of the University of Basrah, College of Science, Departmet of Chemistry (Dr. widad Hanoosh, and Dr, Batool Haddad) publish a book chapter entitled: " Electroluminescence Polymers-a Review on Synthesis by Organic Compounds", which is published in the book of "Advances in Organic Compounds". 

This review book highlighted the main routes for the fabrication and processing of the devices. The colour of this emitted light isdependent on the band gap of π-π transition, which seem to be the function of the structure of the polymer. For developing efficient PLEDs, many factors were considered, like stable radiative transitions for the singlet excitons, balance of electrons and holes and light extraction. It was seen that the fabrication of phosphorescence emitters using the triplet-triplet energy transfer approach was an effective strategy for obtaining a high-efficiency luminescence.