List of Articles Low band-gap Open Access Article Abstract Page Full-Text 1 - Investigations on Optoelectronic Properties of New low Gap Compounds Based on Pyrrole as Solar Cells Materials O. Ninis S.M. Bouzzine H. Toufik F. Lamchouri M. Abarkan M. Hamidi M. Bouachrine Open Access Article Abstract Page Full-Text 2 - Investigations of New Low Gap Conjugated Compounds Based on Thiophene-Phenylene as Solar Cells Materials Mansour Amine Amina Amine Mohammed Hamidi Si Mohammed Bouzzine Mohammed Bouachrine Open Access Article Abstract Page Full-Text 3 - Quantum Chemical Investigation of the Photovoltaic Properties of Conjugated Molecules Based Oligothiophene and Carbazole N. Belghiti M.N. Bennani Si Mohamed Bouzzine Mohamed Hamidi Mohamed Bouachrine