Sodium diffusion, selenization, and microstructural effects associated with various molybdenum back contact layers for CIS-based solar cells

Book · Sat Dec 31 04:00:00 EST 1994

OSTI ID:208033

Scofield, J H ^[1]; Asher, S; Albin, D; Tuttle, J; Contreras, M; Niles, D; Reedy, R; Tennant, A; Noufi, R ^[2]

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1. Oberlin Coll., OH (United States). Physics Dept.
2. National Renewable Energy Lab., Golden, CO (United States)

By varying the argon pressure during deposition, the authors have prepared a set of sputtered molybdenum films on soda-lime glass substrates with a range of mechanical and electrical properties. These films were subsequently exposed to several of the processing steps used in the fabrication of copper-indium-diselenide (CIS) solar cells. Processing steps of interest include heating in a vacuum, exposure to selenium vapor at elevated temperatures, and deposition of CIS and CIGS layers over the Mo. Resulting Mo films and structures were subsequently characterized using XPS, SEM, Auger, and SIMS. Here the authors describe the results of these experiments and their implications for CIS cell fabrication.

• DOE Contract Number: AC36-83CH10093
• OSTI ID: 208033
• Report Number(s): CONF-941203--; ISBN 0-7803-1459-X
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
36 MATERIALS SCIENCE
AUGER ELECTRON SPECTROSCOPY
BACK CONTACT SOLAR CELLS
COPPER SELENIDE SOLAR CELLS
ELECTRIC CONDUCTIVITY
EXPERIMENTAL DATA
FABRICATION
INDIUM SELENIDE SOLAR CELLS
ION MICROPROBE ANALYSIS
MASS SPECTROSCOPY
MICROSTRUCTURE
MOLYBDENUM
PHOTOELECTRON SPECTROSCOPY
RESIDUAL STRESSES
SCANNING ELECTRON MICROSCOPY
SPUTTERING
VAPOR DEPOSITED COATINGS
X-RAY SPECTROSCOPY