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Title: Three-junction solar cell

Abstract

A photovoltaic solar cell is formed in a monolithic semiconductor. The cell contains three junctions. In sequence from the light-entering face, the junctions have a high, a medium, and a low energy gap. The lower junctions are connected in series by one or more metallic members connecting the top of the lower junction through apertures to the bottom of the middle junction. The upper junction is connected in voltage opposition to the lower and middle junctions by second metallic electrodes deposited in holes 60 through the upper junction. The second electrodes are connected to an external terminal.

Inventors:
 [1]
  1. Cupertino, CA
Issue Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
OSTI Identifier:
865785
Patent Number(s):
4575576
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
DOE Contract Number:  
EG-77-C-01-4042
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
three-junction; solar; cell; photovoltaic; formed; monolithic; semiconductor; contains; junctions; sequence; light-entering; medium; energy; gap; connected; series; metallic; connecting; top; junction; apertures; bottom; middle; upper; voltage; opposition; electrodes; deposited; holes; 60; external; terminal; solar cell; photovoltaic solar; junction solar; energy gap; cell contains; metallic electrodes; metallic electrode; cell contain; /136/257/

Citation Formats

Ludowise, Michael J. Three-junction solar cell. United States: N. p., 1986. Web.
Ludowise, Michael J. Three-junction solar cell. United States.
Ludowise, Michael J. Wed . "Three-junction solar cell". United States. https://www.osti.gov/servlets/purl/865785.
@article{osti_865785,
title = {Three-junction solar cell},
author = {Ludowise, Michael J},
abstractNote = {A photovoltaic solar cell is formed in a monolithic semiconductor. The cell contains three junctions. In sequence from the light-entering face, the junctions have a high, a medium, and a low energy gap. The lower junctions are connected in series by one or more metallic members connecting the top of the lower junction through apertures to the bottom of the middle junction. The upper junction is connected in voltage opposition to the lower and middle junctions by second metallic electrodes deposited in holes 60 through the upper junction. The second electrodes are connected to an external terminal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {1}
}

Patent:

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