On the effect of impurities on the photovoltaic behavior of solar grade silicon - II. Influence of titanium, vanadium, chromium, iron, and zirconium on photovoltaic behavior of polycrystalline solar cells
Structural, electrical, and photovoltaic properties of single impurity doped polycrystalline silicon were investigated in order to forecast the behaviour of more complicated impurity matrixes, like those deriving from upgrading MG silicon. Silicon was doped with increasing amounts of titanium, vanadium, chromium, iron, and zirconium, and the diffusion length of minority carriers was measured as a function of the impurity concentration and microstructural features like grain boundaries (GB), dislocations, twins, and stacking faults. Results are displayed in three-dimensional diagrams which permit observations on the dependence of L/sub D/ simultaneously with the impurity concentration and with the total density of electrically active structural defects.
- Research Organization:
- Dept. of Physical Chemistry and Electrochemistry, Univ. of Milano, Milano
- OSTI ID:
- 6546502
- Journal Information:
- J. Electrochem. Soc.; (United States), Vol. 133:11
- Country of Publication:
- United States
- Language:
- English
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Influence of iron, titanium and zirconium on photovoltaic behaviour of polycrystalline solar cells
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Related Subjects
36 MATERIALS SCIENCE
SILICON
ELECTRICAL PROPERTIES
OPTICAL PROPERTIES
SILICON SOLAR CELLS
MATERIALS TESTING
CHROMIUM
DEFECTS
DENSITY
DISLOCATIONS
DOPED MATERIALS
GRAIN BOUNDARIES
IMPURITIES
IRON
MICROSTRUCTURE
PHOTOVOLTAIC EFFECT
POLYCRYSTALS
QUANTITY RATIO
TITANIUM
VANADIUM
ZIRCONIUM
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
DIRECT ENERGY CONVERTERS
ELEMENTS
EQUIPMENT
LINE DEFECTS
MATERIALS
METALS
PHOTOELECTRIC CELLS
PHOTOELECTROMAGNETIC EFFECTS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SEMIMETALS
SOLAR CELLS
SOLAR EQUIPMENT
TESTING
TRANSITION ELEMENTS
140501* - Solar Energy Conversion- Photovoltaic Conversion
360603 - Materials- Properties