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Title: Transparent contacts for stacked compound photovoltaic cells

A microsystems-enabled multi-junction photovoltaic (MEM-PV) cell includes a first photovoltaic cell having a first junction, the first photovoltaic cell including a first semiconductor material employed to form the first junction, the first semiconductor material having a first bandgap. The MEM-PV cell also includes a second photovoltaic cell comprising a second junction. The second photovoltaic cell comprises a second semiconductor material employed to form the second junction, the second semiconductor material having a second bandgap that is less than the first bandgap, the second photovoltaic cell further comprising a first contact layer disposed between the first junction of the first photovoltaic cell and the second junction of the second photovoltaic cell, the first contact layer composed of a third semiconductor material having a third bandgap, the third bandgap being greater than or equal to the first bandgap.
Inventors:
; ; ; ;
Issue Date:
OSTI Identifier:
1333727
Assignee:
Sandia Corporation (Albuquerque, NM) SNL-A
Patent Number(s):
9,508,881
Application Number:
13/649,238
Contract Number:
AC04-94AL85000
Resource Relation:
Patent File Date: 2012 Oct 11
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 14 SOLAR ENERGY
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Works referenced in this record:

Multi-junction III–V solar cells: current status and future potential
journal, July 2005

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