High-Flux Solar Furnace Processing of Crystalline Silicon Solar Cells

    Research output: Contribution to conferencePaper


    We studied the processing of crystalline-silicon solar cells using a 10-kW, high-flux solar furnace (HFSF). Major findings of this study include: (1) hydrogenated amorphous silicon films deposited on glass substrates can be converted to microcrystalline silicon by solid-phase crystallization in 5 seconds or less in the HFSF; (2) the presence of concentrated sunlight enhances the diffusion ofphosphorus into silicon from a spin-on dopant source; (3) the combination of a porous-silicon surface layer and photo-enhanced impurity diffusion is very effective in gettering impurities from a metallurgical-grade silicon wafer or thin-layer silicon deposited using liquid-phase epitaxy; (4) a 14.1%-efficient crystalline-silicon solar cell with an area of 4.6 cm2 was fabricated using the HFSFfor simultaneous diffusion of front n+-p and back-p+ junctions; and (5) we have shown that the HFSF can be used to texture crystalline-silicon surfaces and anneal metal contacts printed on a silicon solar cell.
    Original languageAmerican English
    Number of pages7
    StatePublished - 1997
    EventNREL/SNL Photovoltaics Program Review: 14th Conference - Lakewood, Colorado
    Duration: 18 Nov 199622 Nov 1996


    ConferenceNREL/SNL Photovoltaics Program Review: 14th Conference
    CityLakewood, Colorado

    NREL Publication Number

    • NREL/CP-450-22224


    Dive into the research topics of 'High-Flux Solar Furnace Processing of Crystalline Silicon Solar Cells'. Together they form a unique fingerprint.

    Cite this