The fabrication and physics of cadmium-telluride thin-film solar cells

Author

Potlog, T. ; Spalatu, N.

Author_Institution

Phys. Dept., Moldova State Univ., Chisinau, Moldova

Volume

1

fYear

2009

fDate

12-14 Oct. 2009

Firstpage

177

Lastpage

180

Abstract

Conditions for efficiency improvement and optimization in CdS/CdTe solar cells prepared by hot wall technique (HWT) are discussed in this paper. CdS/CdTe solar cells with and without incorporated back layer contact (BC) have been studied by current-voltage and capacitance-voltage measurements. Analysis reveals the cells without back layer contact seriously suffer in fill factor (FF) due to J-V rollover in dark and illumination. Also, the FF is limited by a light-dependent shunt and series resistances. The efficiency of both types of cells is limited by a light-dependent shunt/series resistances and compensation mechanism of CdTe layer.

Keywords

II-VI semiconductors; cadmium compounds; electric resistance; solar cells; vapour phase epitaxial growth; CdS-CdTe; capacitance-voltage measurement; current-voltage measurement; fill factor; hot wall technique; thin film solar cells; Capacitance measurement; Capacitance-voltage characteristics; Current measurement; Fabrication; Heterojunctions; Lighting; Photovoltaic cells; Physics; Temperature; Transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Conference, 2009. CAS 2009. International

Conference_Location

Sinaia

ISSN

1545-827X

Print_ISBN

978-1-4244-4413-7

Type

conf

DOI

10.1109/SMICND.2009.5336578

Filename

5336578