1. Properties of Liquid Phase Crystallized Interdigitated Back-contact Solar Cells on Glass
- Author
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Sven Kühnapfel, Jan Haschke, Daniel Amkreutz, Bernd Rech, Paul Sonntag, and Onno Gabriel
- Subjects
Materials science ,thin-film crystalline silicon solar cell ,Silicon ,business.industry ,IBC ,Doping ,chemistry.chemical_element ,Trapping ,Liquid Phase Crystallization ,law.invention ,Optics ,chemistry ,Energy(all) ,Plasma-enhanced chemical vapor deposition ,law ,Cathode ray ,Texture (crystalline) ,silicon hetero-juntion ,Crystallization ,Composite material ,business ,Pyramid (geometry) - 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.
- Published
- 2015
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