Highly efficient double side mechanically textured novel silicon solar cell concepts

Author

Terheiden, Barbara ; Fath, Peter

Author_Institution

Dept. of Phys., Konstanz Univ., Germany

Volume

2

fYear

2003

fDate

18-18 May 2003

Firstpage

1443

Abstract

Silicon solar cell concepts based on double side mechanical V-texturing were developed and investigated. In the case of the MECOR (MEchanically CORrugated) solar cell concept, the V-grooves run parallel on the front and rear sides while the BOSS (BOth Sides Perpendicularly Structured) solar cell concept is based on perpendicular V-grooves on the front and rear sides. The solar cell contacting was mainly done using the SAP&SAFE (Shallow Angle Photolithography & Shallow Angle Finger Evaporation) concept which was specifically developed for V-textured surfaces. The highest efficiency achieved for MECOR solar cells was 18.5%. For BOSS solar cells an efficiency of 19.3% was demonstrated. Optical simulations of different geometric cell structures were done.

Keywords

current density; elemental semiconductors; infrared spectra; metallisation; photolithography; short-circuit currents; silicon; solar cells; surface texture; visible spectra; Si; V textured surfaces; V-grooves; both sides perpendicularly structured solar cell; double side mechanical V-texturing; double side mechanically textured novel silicon solar cell; geometric cell structures; mechanically corrugated solar cell; metallisation; optical simulation; shallow angle finger evaporation; shallow angle photolithography; solar cell contacting;

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

1306195