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Title: Bifacial tandem solar cells

Patent ·
OSTI ID:1257254
; ; ; ;

A method of fabricating on a semiconductor substrate bifacial tandem solar cells with semiconductor subcells having a lower bandgap than the substrate bandgap on one side of the substrate and with subcells having a higher bandgap than the substrate on the other including, first, growing a lower bandgap subcell on one substrate side that uses only the same periodic table group V material in the dislocation-reducing grading layers and bottom subcells as is present in the substrate and after the initial growth is complete and then flipping the substrate and growing the higher bandgap subcells on the opposite substrate side which can be of different group V material.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Assignee:
MASIMO SEMICONDUCTOR, INC. (Irvine, CA)
Patent Number(s):
9,368,671
Application Number:
14/507,607
OSTI ID:
1257254
Resource Relation:
Patent File Date: 2014 Oct 06
Country of Publication:
United States
Language:
English

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