List of Articles Bipolaron Open Access Article Abstract Page Full-Text 1 - Electroactive Materials Based on Thiophen: Study of the Doping and its Effect Si Mohamed Bouzzine Mohamed Hamidi Mohamed Bouachrine Open Access Article Abstract Page Full-Text 2 - A Combined Experimental and Theoretical Study of Optoelectronic and Structural Properties of a New Copolymer Based on Polyvinylcarbazole (PVK) and Poly (3-hexylthiophene) (PHT) Z. El Malki L. Bejjit M. Haddad M. Hamidi M. Bouachrine