Badassa, Tesgara (PhD)Feleke, Tsegaye2021-03-192023-11-092021-03-192023-11-092021-03-17http://10.90.10.223:4000/handle/123456789/25608A review on charge transport in mesoscopic semiconductor structure was presented by considering the quantum transport theory of carrier and quasi particles in low- dimensional structures called semiconductor nanostructure devices. More specifically, the concentration, motions and optical properties of carriers in a semiconductor crystal structure are theoretically as well as statistically described based on Fermi – Dirac distribution and Boltzmann transport equation. We reviewed the free-carrier and free-quasi particle transport in semiconductor nanostructure devices based on the well-known non equilibrium Green function approach. The effects of interference on Aharonov- Bohm limit, the general properties of scattering super operators entering the effective quantum transport theory at various description level reduction procedure and diagonal or semiconductor limit were also reviewed separately.enTransportMesoscopicSemicondctorStructuresThesis