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Superstrate sub-cell voltage-matched multijunction solar cells

Patent ·
OSTI ID:1243032
Voltage-matched thin film multijunction solar cell and methods of producing cells having upper CdTe pn junction layers formed on a transparent substrate which in the completed device is operatively positioned in a superstate configuration. The solar cell also includes a lower pn junction formed independently of the CdTe pn junction and an insulating layer between CdTe and lower pn junctions. The voltage-matched thin film multijunction solar cells further include a parallel connection between the CdTe pn junction and lower pn junctions to form a two-terminal photonic device. Methods of fabricating devices from independently produced upper CdTe junction layers and lower junction layers are also disclosed.
Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC36-08GO28308
Assignee:
Alliance for Sustainable Energy, LLC (Golden, CO)
Patent Number(s):
9,287,431
Application Number:
14/243,320
OSTI ID:
1243032
Country of Publication:
United States
Language:
English

References (4)

The Effects of Fabrication Prameters and Electroforming Phenomenon on CdTe/Si (p) Heterojunction Photovoltaic Solar Cell journal January 2012
Modeling of CdZnTe/CdTe/Si triple junction solar cells conference June 2011
50% Efficient Solar Cell Architectures and Designs conference May 2006
High-Efficiency Multijunction Solar Cells journal March 2007

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