Effective microscopic theory of quantum dot superlattice solar cells

Abstract

We introduce a quantum dot orbital tight-binding non-equilibrium Green's function approach for the simulation of novel solar cell devices where both absorption and conduction are mediated by quantum dot states. By the use of basis states localized on the quantum dots, the computational real space mesh of the Green's function is coarse-grained from atomic resolution to the quantum dot spacing, which enables the simulation of extended devices consisting of many quantum dot layers.

9 pages, 6 figures; Special Issue: Numerical Simulation of Optoelectronic Devices NUSOD'11

References in corpus (6)

• Semiconductor Superlattices: A model system for nonlinear transport
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Cited by in corpus (6)

• Quantum-kinetic theory of steady-state photocurrent generation in thin films: Coherent versus incoherent coupling
• Simulation of nanostructure-based high-efficiency solar cells: challenges, existing approaches and future directions
• Simulation of nanostructure-based and ultra-thin film solar cell devices beyond the classical picture
• Impact of nanostructure configuration on the photovoltaic performance of quantum dot arrays
• Nonequilibrium Green's function theory of coherent excitonic effects in the photocurrent response of semiconductor nanostructures
• Quantum-kinetic perspective on photovoltaic device operation in nanostructure-based solar cells