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

Conference · Fri Jan 01 00:00:00 EST 1982

OSTI ID:5570713

Young, R T; van der Leeden, G A; Wood, R F; Narayan, J

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.

• Research Organization: Oak Ridge National Lab., TN (USA); Helionetics, Inc., San Diego, CA (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5570713
• Report Number(s): CONF-820906-39; ON: DE84000682
• Resource Relation: Conference: 16. IEEE photovoltaics specialists conference, San Diego, CA, USA, 28 Sep 1982; Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
SILICON SOLAR CELLS
GRAIN BOUNDARIES
CRYSTAL DEFECTS
CRYSTAL DOPING
ELECTRICAL PROPERTIES
GRAIN SIZE
LITHIUM
PASSIVATION
POLYCRYSTALS
RECOMBINATION
TRANSMUTATION
ALKALI METALS
CRYSTAL STRUCTURE
CRYSTALS
DIRECT ENERGY CONVERTERS
ELEMENTS
EQUIPMENT
METALS
MICROSTRUCTURE
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SIZE
SOLAR CELLS
SOLAR EQUIPMENT
140501* - Solar Energy Conversion- Photovoltaic Conversion