Thin-film cadium telluride solar cells: Annual subcontract report, 1 May 1986-31 May 1987

Technical Report · Thu Oct 01 04:00:00 EDT 1987

OSTI ID:5693334

Chu, T L

Cadmium telluride, with a room-temperature band-gap energy of 1.5 eV, is a promising thin-film photovoltaic material. The major objective of this research has been to demonstrate thin-film CdTe heterojunction solar cells with a total area greater than 1 cm/sup 2/ and photovoltaic efficiencies of 13% or more. Thin-film p-CdTe/CdS/SnO/sub 2/:F/glass solar cells with an AM1.5 efficiency of 10.5% have been reported previously. This report contains results of work done on (1) the deposition, resistivity control, and characterization of p-CdTe films by the close-spaced sublimation process; (2) the deposition of large-band-gap window materials; (3) the electrical properties of CdS/CdTe heterojunctions; (4) the formation of stable, reproducible, ohmic contacts (such as p-HgTe) to p-CdTe; and (5) the preparation and evaluation of heterojunction solar cells. 16 refs., 19 figs., 1 tab.

• Research Organization: Southern Methodist Univ., Dallas, TX (USA)
• DOE Contract Number: AC02-83CH10093
• OSTI ID: 5693334
• Report Number(s): SERI/STR-211-3229; ON: DE88001107
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
360603 -- Materials-- Properties
CADMIUM TELLURIDE SOLAR CELLS
COATINGS
DIRECT ENERGY CONVERTERS
DOCUMENT TYPES
EFFICIENCY
ELECTRICAL PROPERTIES
EQUIPMENT
FABRICATION
FILMS
HETEROJUNCTIONS
JUNCTIONS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
PROGRESS REPORT
RESEARCH PROGRAMS
SEMICONDUCTOR JUNCTIONS
SOLAR CELLS
SOLAR EQUIPMENT
THIN FILMS
VAPOR DEPOSITED COATINGS