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Erschienen in:
2007 | OriginalPaper | Buchkapitel
Microscopic Modelling of Quantum Well Solar Cells
verfasst von : U. Aeberhard, R. Morf
Erschienen in: Simulation of Semiconductor Processes and Devices 2007
Verlag: Springer Vienna
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We present a microscopic model of the photocurrent in quantum well solar cells (QWSC), based on the non-equilibrium Green’s function formalism (NEGF) for a multiband tight-binding Hamiltonian. The quantum kinetic equations are self-consistently coupled to Poisson’s equation. Relaxation and broadening mechanisms are considered by the inclusion of acoustic and optical electron-phonon interaction in a self-consistent Born approximation of the scattering self energies. Results are shown for the density of states, spectral response, current spectrum and IV-characteristics of single quantum well
pin
-structures.