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

Conference · Wed Sep 01 04:00:00 EDT 1982 · Conf. Rec. IEEE Photovoltaic Spec. Conf.; (United States)

OSTI ID:5495069

Young, R T; Narayan, J; Van Der Leeden, G A; Wood, R F

Progress in the development of small-grained (10-100 ..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 the authors have studied grain boundaries and their effects in polycrystalline silicon with grain sizes of 1-2 mm and in smaller grained material with grain sizes of 10 ..mu..m and 40-50 ..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.

• Research Organization: Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5495069
• Report Number(s): CONF-820906-
• Conference Information: Journal Name: Conf. Rec. IEEE Photovoltaic Spec. Conf.; (United States)
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
ALKALI METALS
APPROPRIATE TECHNOLOGY
CHEMICAL PROPERTIES
CRYSTAL STRUCTURE
CRYSTALS
DIRECT ENERGY CONVERTERS
ELECTRICAL PROPERTIES
ELEMENTS
EQUIPMENT
GRAIN BOUNDARIES
GRAIN SIZE
JUNCTIONS
LITHIUM
METALS
MICROSTRUCTURE
PASSIVATION
PERFORMANCE
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
POLYCRYSTALS
RECOMBINATION
SEMICONDUCTOR JUNCTIONS
SEMIMETALS
SILICON
SILICON SOLAR CELLS
SIZE
SOLAR CELLS
SOLAR EQUIPMENT