Properties of Liquid Phase Crystallized Interdigitated Back-contact Solar Cells on Glass. (August 2015)

• Record Type: Journal Article
• Authors: Sonntag, Paul; Haschke, Jan; Kühnapfel, Sven; Gabriel, Onno; Amkreutz, Daniel; Rech, Bernd
• Is Part Of: Energy procedia. Volume 77(2015)
• Page Start: 487
• Page End: 492
• Publication Date: 2015-08
• Subjects: Liquid Phase Crystallization -- IBC -- silicon hetero-juntion -- thin-film crystalline silicon solar cell; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2015.07.069
• Languages: English
• ISSNs: 1876-6102

Abstract

Abstract: We fabricated interdigitated back-contact silicon hetero-junction solar cells based on thin-film absorbers on glass. The Si absorbers were directly deposited on the glass and crystallized using liquid phase crystallization. To compare whether our contact system is applicable to a wide range of initial absorber conditions two different types of precursors were prepared with absorber thicknesses between 2.5-9 μm. Furthermore, glass superstrates, doping densities and interlayer stacks were varied. With a KOH random pyramid light trapping texture at the back more than 30 mA/cm 2 were achieved on an electron beam evaporated precursor material and 655 mV on a PECVD precursor material.