Investigations on the current matching of highly efficient tandem solar cells based on amorphous and microcrystalline silicon

Author

Repmann, Tobias ; Kirchhoff, Joachim ; Reetz, Wilfried ; Birmans, Franz ; Müller, Joachim ; Rech, Bemd

Author_Institution

Inst. of Photovoltaics, Forschungszentrum Julich GmbH, Germany

Volume

2

fYear

2003

fDate

18-18 May 2003

Firstpage

1843

Abstract

This paper addresses the current matching of a-Si:H//spl mu/c-Si:H tandem cells in the initial and stabilised state. Different matching conditions were obtained by a variation of top and bottom cell i-layer thickness, top cell i-layer deposition conditions and properties of the TCO coated glass substrates. The best cells showed stabilised efficiencies of 10.4% and 11.2% for 1 cm/sup 2/ solar cells prepared on tin oxide and zinc oxide substrates, respectively. An equivalent network model was developed to analyse and explain the experimental results.

Keywords

amorphous semiconductors; elemental semiconductors; hydrogen; semiconductor device models; silicon; solar cells; Si:H; SnO; ZnO; amorphous Si:H/microcrystalline Si:H tandem cells; amorphous silicon; current matching; microcrystalline silicon; solar cell i-layer deposition; tin oxide substrates; transparent conductive oxide coated glass substrates; zinc oxide substrates;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Energy Conversion, 2003. Proceedings of 3rd World Conference on

Conference_Location

Osaka, Japan

Print_ISBN

4-9901816-0-3

Type

conf

Filename

1306296