Sputtered indium-tin oxide/cadmium telluride junctions and cadmium telluride surfaces

Journal Article · Tue Apr 01 00:00:00 EST 1980 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.327892· OSTI ID:5336581

Courreges, F G; Fahrenbruch, A L; Bube, R H

The properties of indium-tin oxide (ITO)/CdTe junction solar cells prepared by rf sputtering of ITO on P-doped CdTe single-crystal substrates have been investigated through measurements of the electrical and photovoltaic properties of ITO/CdTe and In/CdTe junctions, and of electron beam induced currents (EBIC) in ITO/CdTe junctions. In addition, surface properties of CdTe related to the sputtering process were investigated as a function of sputter etching and thermal oxidation using the techniques of surface photovoltage and photoluminescence. ITO/CdTe cells prepared by this sputtering method consist of an n/sup +/-ITO/n-CdTe/p-CdTe buried homojunction with about a 1-..mu..m-thick n-type CdTe layer formed by heating of the surface of the CdTe during sputtering. Solar efficiencies up to 8% have been observed with V/sub 0c/=0.82 V and J/sub s/c=14.5 mA/cm/sup 2/. The chief degradation mechanism involves a decrease in V/sub 0c/ with a transformation of the buried homojunction structure to an actual ITO/CdTe heterojunction.

• Research Organization: Department of Materials Science and Engineering, Stanford University, Stanford, California 94305
• OSTI ID: 5336581
• Journal Information: J. Appl. Phys.; (United States), Vol. 51:4
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
36 MATERIALS SCIENCE
CADMIUM TELLURIDE SOLAR CELLS
FABRICATION
PERFORMANCE
INDIUM OXIDES
SPUTTERING
TIN OXIDES
CADMIUM TELLURIDES
DATA
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELECTRON BEAMS
ETCHING
JUNCTIONS
MONOCRYSTALS
OXIDATION
PHOTOLUMINESCENCE
PHOTOVOLTAIC EFFECT
SUBSTRATES
SURFACES
BEAMS
CADMIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CRYSTALS
CURRENTS
DIRECT ENERGY CONVERTERS
EQUIPMENT
INDIUM COMPOUNDS
INFORMATION
LEPTON BEAMS
LUMINESCENCE
OXIDES
OXYGEN COMPOUNDS
PARTICLE BEAMS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SOLAR CELLS
SOLAR EQUIPMENT
SURFACE FINISHING
TELLURIDES
TELLURIUM COMPOUNDS
TIN COMPOUNDS
140501* - Solar Energy Conversion- Photovoltaic Conversion
360601 - Other Materials- Preparation & Manufacture