Liquid phase crystallized silicon solar cells on glass: Material quality and device design
- Resource Type
- Conference
- Authors
- Amkreutz, Daniel; Barker, William David; Kuhnapfel, Sven; Sonntag, Paul; Haschke, Jan; Gall, Stefan; Schmidt, Jan; Gabriel, Onno; Rech, Bernd
- Source
- 2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC) Photovoltaic Specialist Conference (PVSC), 2015 IEEE 42nd. :1-3 Jun, 2015
- Subject
- Aerospace
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Engineering Profession
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Power, Energy and Industry Applications
Silicon
Substrates
Glass
Crystallization
Insulation
Films
Fabrication
poly-crystalline silicon
single-sided contact system
surface passivation
- Language
Liquid phase crystallization (LPC) has proven to be a suitable method to grow large-grained silicon films on commercially well available glass substrates. Zone-melting crystallization with high energy density line sources such as lasers or electron beams enabled polycrystalline grain growth with wafer equivalent morphology. A lot of effort was put into interlayer optimization by different groups. Open circuit voltages above 630 mV and efficiencies up to 11.8% were demonstrated using n-type absorbers on a sputtered interlayer between glass substrate and silicon absorber comprising a triple stack of SiO2/SiNx/SiO2. In this work we report on our results to further improve device performance by investigating the influence of the interlayer on the open circuit voltage of the devices and demonstrate first results achieved on an interdigitated back contacted silicon heterojunction solar cell to simplify device fabrication.