84 citations · 469 across the 17 of their papers we have counts for
17 papers
Hot-carrier optoelectronic devices based on semiconductor nanowires
Jonatan Fast, Urs Aeberhard, Stephen P. Bremner +1
In optoelectronic devices such as solar cells and photodetectors, a portion of electron-hole pairs are generated as so called hot carriers with an excess energy that is typically l…
Photocarrier extraction in GaAsSb/GaAsN type-II QW superlattice solar cells
Urs Aeberhard, Alicia Gonzalo, Jose María Ulloa
Photocarrier transport and extraction in GaAsSb/GaAsN type-II quantum well superlattices are investigated by means of inelastic quantum transport calculations based on the non-equi…
Quantum-kinetic perspective on photovoltaic device operation in nanostructure-based solar cells
Urs Aeberhard
The implementation of a wide range of novel concepts for next-generation high-efficiency solar cells is based on nanostructures with configuration-tunable optoelectronic properties…
Ab-initio analysis of structural, electronic, and optical properties of a-Si:H
Philippe Czaja, Urs Aeberhard, Massimo Celino +2
We present a first-principles study of the structural, electronic, and optical properties of hydrogenated amorphous silicon (a-Si:H). To this end, atomic configurations of a-Si:H w…
A Microscopic Perspective on Photovoltaic Reciprocity in Ultrathin Solar Cells
Urs Aeberhard, Uwe Rau
The photovoltaic reciprocity theory relates the electroluminescence spectrum of a solar cell under applied bias to the external photovoltaic quantum efficiency of the device as mea…
Ab initio Description of Optoelectronic Properties at Defective Interfaces in Solar Cells
Philippe Czaja, Massimo Celino, Simone Giusepponi +2
In order to optimize the optoelectronic properties of novel solar cell architectures, such as the amorphous-crystalline interface in silicon heterojunction devices, we calculate an…