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Low-bandgap, monolithic, multi-bandgap, optoelectronic devices

Patent ·
OSTI ID:1137114
;
Low bandgap, monolithic, multi-bandgap, optoelectronic devices (10), including PV converters, photodetectors, and LED's, have lattice-matched (LM), double-heterostructure (DH), low-bandgap GaInAs(P) subcells (22, 24) including those that are lattice-mismatched (LMM) to InP, grown on an InP substrate (26) by use of at least one graded lattice constant transition layer (20) of InAsP positioned somewhere between the InP substrate (26) and the LMM subcell(s) (22, 24). These devices are monofacial (10) or bifacial (80) and include monolithic, integrated, modules (MIMs) (190) with a plurality of voltage-matched subcell circuits (262, 264, 266, 270, 272) as well as other variations and embodiments.
Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC36-99GO10337
Assignee:
Alliance for Sustainable Energy, LLC (Golden, CO)
Patent Number(s):
8,772,623
Application Number:
13/664,142
OSTI ID:
1137114
Country of Publication:
United States
Language:
English

References (10)

An inverted-growth approach to development of an IR-transparent, high-efficiency AlGaAs/GaAs cascade solar cell conference January 1991
Extreme selectivity in the lift‐off of epitaxial GaAs films journal December 1987
Lattice-mismatched approaches for high-performance, III-V photovoltaic energy converters conference January 2005
A Rigorous Analysis of Series-Connected, Multi-Bandgap, Tandem Thermophotovoltaic (TPV) Energy Converters conference January 2004
Electrochemical performance of α-Fe2O3 nanorods as anode material for lithium-ion cells journal February 2009
Wafer bonding and layer transfer processes for 4-junction high efficiency solar cells conference January 2002
High performance anti-reflection coatings for broadband multi-junction solar cells journal November 2000
Progress in the development of metamorphic multi-junction III-V space solar cells
  • Sinharoy, Samar; Patton, Martin O.; Valko, Thomas M.
  • Progress in Photovoltaics: Research and Applications, Vol. 10, Issue 6, p. 427-432 https://doi.org/10.1002/pip.449
journal August 2002
Computer modeling of a two-junction, monolithic cascade solar cell journal January 1980
Antireflection coating design for series interconnected multi-junction solar cells journal January 2000

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