Cz bifacial solar cells

Author

Canizo, C. Del ; Moehlecke, A. ; Zanesco, I. ; Luque, A.

Author_Institution

Inst. de Energia Solar, Univ. Politecnica de Madrid, Spain

Volume

21

Issue

4

fYear

2000

fDate

4/1/2000 12:00:00 AM

Firstpage

179

Lastpage

180

Abstract

High efficiencies have been achieved with bifacial solar cells made on FZ silicon. In the adaptation of the process to the more commonly used Cz material, attention has been paid to the influence of thermal processing on Cz, trying to avoid internal gettering effects related to oxygen precipitation. Lifetime measurements at different steps of the process have been carried out to quantify this influence. Reduction of "thermal load" by growth of a thin passivating oxide and deposition of a double antireflecting coating gives 17.7% when illuminated from the n/sup +/ side and 15.2% when illuminated from the p/sup +/ one.

Keywords

antireflection coatings; carrier lifetime; elemental semiconductors; passivation; semiconductor device measurement; silicon; solar cells; 15.2 percent; 17.7 percent; CZ material; O precipitation; Si; bifacial solar cells; double antireflecting coating; internal gettering effects; lifetime measurements; thermal processing; thin passivating oxide; Boron; Etching; Gettering; Hafnium; Lifetime estimation; Lighting; Metallization; Passivation; Photovoltaic cells; Silicon;

fLanguage

English

Journal_Title

Electron Device Letters, IEEE

Publisher

ieee

ISSN

0741-3106

Type

jour

DOI

10.1109/55.830974

Filename

830974