Junctions for monolithic cascade solar cells and methods

Details Junctions for monolithic cascade solar cells and methods Junctions for monolithic cascade solar cells and methods

1988-03-22

1989-11-21

Nelson, Peter A.

Batteries: thermoelectric and photoelectric

Thermoelectric

Processes

136206, 1362361, 357 4, H01L 3534, H01L 3700

Patent

active

048819794

ABSTRACT:
In order to increase the efficiency of solar cells, a monolithic stacked device is constructed comprising a plurality of solar sub-cells adjusted for different bands of radiation. The interconnection between these sub-cells has been a significant technical problem. The invention provides an interconnection which is an extremely thin layer of gold formed between the sub-cells by organometallic chemical vapor deposition. Such a layer tends to form beads which serve as a low resistance shorting interconnect while passing a large fraction of the radiation to the lower sub-cells.

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patent: 4710588 (1987-12-01), Ellion
patent: 4771321 (1988-09-01), Lewis
L. M. Fraas, A. Shorting Junction For Monolithic Multicolor Solar Cells, pp. 1353-1356, 5-15-81, Conference Record of the 15th IEEE Photovoltaic Specialists.
L. M. Fraas & R. C. Knechtli, Design of High Efficiency Monolithic Multijunction Solar Cells, pp. 886-887, 6-8-78, Conference of the 13th IEEE Photovoltaic Specialists.

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