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Multi-junction, monolithic solar cell with active silicon substrate

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
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A monolithic multi-junction (tandem) photo-voltaic (PV) device includes one or more PV subcells epitaxially formed on a compliant silicon substrate (102). The compliant silicon substrate (102) includes a base silicon layer (108), a conductive perovskite layer (112), and an oxide layer (110) interposed between the base silicon layer (108) and the conductive perovskite layer (112). A PV subcell is formed within the base silicon layer (108) of the conductive silicon substrate (102). The conductive perovskite layer (112) facilitates the conduction of charge carriers between the PV subcell formed in the compliant silicon substrate (102) and the one or more PV subcells formed on the compliant silicon substrate (102).
Mascarenhas, Angelo (Lakewood, CO), Seong, Maeng-Je (Lakewood, CO)
10/ 523,745
August 16, 2002
CONTRACTUAL ORIGIN OF THE INVENTION [0001] The United States Government has rights in this invention under Contract No. DE-AC36-99GO10337 between the United States Department of Energy and the National Renewable Energy Laboratory, a Division of the Midwest Research Institute.