List of Articles somaieh Ahmadi Article 1 - Effect of Nitrogen on Negative Differential Conductance in Polythiophene Molecular Bridge 20.1001.1.24237361.2021.6.2.2.6 10.30495/jopn.2021.27568.1219 Mohammad Nasiri fard Somaieh Ahmadi leila eslami Journal of Optoelectronical Nanostructures , Issue 21 , Year , Summer 2021