Studies on substrates and contacts for CIS films and devices

Conference · Fri Dec 30 23:00:00 EST 1994

OSTI ID:208029

Basol, B M; Kapur, V K; Leidholm, C R; Minnick, A; Halani, A ^[1]

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1. International Solar Electric Technology, Inglewood, CA (United States)

Nature of the glass/Mo substrates used in CIS solar cell structures influences the performance of the devices. Excessive Na diffusion from the commonly used soda-lime glass substrates through the Mo layer and its reaction with the processing atmosphere at the Mo/CIS interface may limit the efficiency of cells due to the formation of a high resistivity layer near this contact. A moderate level of Na diffusion, on the other hand, improves the efficiency of the cells, especially those fabricated on CIS films with low Cu/In stoichiometric ratios. The Na diffusion process depends on the type of the glass substrate used and the nature of the Mo layer.

• OSTI ID: 208029
• 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
CHEMICAL ACTIVATION
COPPER SELENIDE SOLAR CELLS
ELECTRIC CONTACTS
FABRICATION
GLASS
INDIUM SELENIDE SOLAR CELLS
INTERFACES
METALLURGICAL EFFECTS
MOLYBDENUM
PHOTOELECTRON SPECTROSCOPY
QUANTUM EFFICIENCY
SODIUM
SOLAR ABSORBERS
SUBSTRATES
X-RAY SPECTROSCOPY