Sputtered-amorphous-silicon solar cells. Final technical report, July 22, 1980-July 22, 1981

Technical Report · Thu Jan 01 04:00:00 EST 1981

OSTI ID:5251101

Moustakas, T D; Tiedje, T; Wronski, C R; Morel, D L

The electronic bombardment has been identified as the parameter which controls the amorphous si film's microstructure. Utilizing this finding, material with good electronic properties has been produced. Also, a kinetic model has been developed for the hydrogen incorporation and methods to manipulate the hydrogen bonding configuration. Factors are identified, besides the hydrogen content, which influence the optical gap. Material was produced with the lowest density of states in the gap reported in the literature and the dangling bond was identified as the important defect for carrier recombination. The correlation between optical gap barrier height and collection width suggest that films with gaps larger than 1.8 eV may lead to devices with higher efficiency. Finally, the effect of phosphorous and boron contamination as well as compensation effects have been demonstrated. P-I-N solar cells with efficiency of 4% have been obtained. These results suggest that reactive sputtering would lead to solar cell structure with efficiency equivalent to those of glow discharge.

• Research Organization: Solar Energy Research Inst., Golden, CO (USA); Exxon Research and Engineering Co., Linden, NJ (USA). Advanced Energy Systems Labs.
• DOE Contract Number: AC02-77CH00178
• OSTI ID: 5251101
• Report Number(s): SERI/TR-9219-T2; ON: DE82012235
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
AMORPHOUS STATE
BORON
CAPACITANCE
CRYSTAL STRUCTURE
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELECTRIC POTENTIAL
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY GAP
ENERGY LEVELS
EQUIPMENT
FABRICATION
HYDROGEN
IMPURITIES
MICROSTRUCTURE
NONMETALS
PERFORMANCE
PHOSPHORUS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
QUANTUM EFFICIENCY
RECOMBINATION
SCHOTTKY BARRIER SOLAR CELLS
SEMIMETALS
SILICON
SILICON SOLAR CELLS
SOLAR CELLS
SOLAR EQUIPMENT
SPUTTERING