Studies of grain boundaries in small-grained polycrystalline silicon solar cells

Journal Article · Wed Sep 01 00:00:00 EDT 1982 · Conf. Rec. IEEE Photovoltaic Spec. Conf.; (United States)

OSTI ID:6274963

Young, R T ^[1]; van der Leeden, G A; Wood, R F; Narayan, J

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1. Oak Ridge National Lab., TN

Progress in the development of small-grained (10 to 100 ..mu..m) polycrystalline Si solar cells is hampered by the present poor knowledge of physical and chemical properties of grain boundaries and the lack of satisfactory processing techniques for junction formation. In the work discussed in this paper we have studied grain boundaries and their effects in polycrystalline silicon with grain sizes of 1 to 2 mm and in smaller grained material with grain sizes of 10 ..mu..m and 40 to 50 ..mu..m. Results for various recombination effects observed in the large-grained material are described and the influence of lithium passivation on the electrical properties of the small-grained material and on the characteristics of solar cells made from it are reported.

• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6274963
• Journal Information: Conf. Rec. IEEE Photovoltaic Spec. Conf.; (United States), Journal Name: Conf. Rec. IEEE Photovoltaic Spec. Conf.; (United States)
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
SILICON SOLAR CELLS
GRAIN BOUNDARIES
CARRIER DENSITY
CARRIER MOBILITY
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
GRAIN SIZE
LITHIUM
PASSIVATION
PERFORMANCE
PHOSPHORUS
POLYCRYSTALS
RECOMBINATION
ALKALI METALS
CRYSTAL STRUCTURE
CRYSTALS
DIRECT ENERGY CONVERTERS
ELECTRICAL PROPERTIES
ELEMENTS
EQUIPMENT
MATERIALS
METALS
MICROSTRUCTURE
MOBILITY
NONMETALS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SIZE
SOLAR CELLS
SOLAR EQUIPMENT
140501* - Solar Energy Conversion- Photovoltaic Conversion