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Numerical 3D-Simulation of Micromorph Silicon Thin Film Solar Cells

Published online by Cambridge University Press:  27 June 2011

Stefan Geißendörfer ,
Karsten von Maydell  and
Carsten Agert
Stefan Geißendörfer
Affiliation:
NEXT ENERGY ∙ EWE-Forschungszentrum für Energietechnologie an der Carl von Ossietzky Universität, Carl-von-Ossietzky-Str. 15, 26129 Oldenburg, Germany
Karsten von Maydell
Affiliation:
NEXT ENERGY ∙ EWE-Forschungszentrum für Energietechnologie an der Carl von Ossietzky Universität, Carl-von-Ossietzky-Str. 15, 26129 Oldenburg, Germany
Carsten Agert
Affiliation:
NEXT ENERGY ∙ EWE-Forschungszentrum für Energietechnologie an der Carl von Ossietzky Universität, Carl-von-Ossietzky-Str. 15, 26129 Oldenburg, Germany
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Abstract

In this contribution 1, 2 and 3-dimensional simulations of micromorph silicon solar cells are presented. In order to simulate solar cells with rough interfaces, the surface topographies were measured via atomic force microscopy (AFM) and transferred into the commercial software Sentaurus TCAD (Synopsys). The model of the structure includes layer thicknesses and optoelectronic parameters like complex refractive index and defect structure. Results of the space resolved optical generation rates by using of the optical solver Raytracer are presented. The space resolved optical generation rate inside the semiconductor layers depends on the structure of the transparent conductive oxides (TCO) interface. In this contribution the influence of different optical generation rates on the electrical characteristics of the solar cell device are investigated. Furthermore, the optical and electrical results of the 1D, 2D and 3D structures, which have equal layer thicknesses and optoelectronic parameters, are compared.

Keywords

simulationthin filmSi
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1321: Symposium A – Amorphous and Polycrystalline Thin-Film Silicon Science and Technology , 2011 , mrss11-1321-a08-09
Copyright
Copyright © Materials Research Society 2011

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References

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