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Title: Single P-N junction tandem photovoltaic device

Abstract

A single P-N junction solar cell is provided having two depletion regions for charge separation while allowing the electrons and holes to recombine such that the voltages associated with both depletion regions of the solar cell will add together. The single p-n junction solar cell includes an alloy of either InGaN or InAlN formed on one side of the P-N junction with Si formed on the other side in order to produce characteristics of a two junction (2J) tandem solar cell through only a single P-N junction. A single P-N junction solar cell having tandem solar cell characteristics will achieve power conversion efficiencies exceeding 30%.

Inventors:
 [1];  [2];  [3]
  1. Kensington, CA
  2. (Berkeley, CA)
  3. Lafayette, CA
Issue Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1028778
Patent Number(s):
8039740
Application Number:
11/777,963
Assignee:
RoseStreet Labs Energy, Inc. (Phoenix, AZ)
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:  
AC02-05CH11231
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY

Citation Formats

Walukiewicz, Wladyslaw, Ager, III, Joel W., and Yu, Kin Man. Single P-N junction tandem photovoltaic device. United States: N. p., 2011. Web.
Walukiewicz, Wladyslaw, Ager, III, Joel W., & Yu, Kin Man. Single P-N junction tandem photovoltaic device. United States.
Walukiewicz, Wladyslaw, Ager, III, Joel W., and Yu, Kin Man. Tue . "Single P-N junction tandem photovoltaic device". United States. https://www.osti.gov/servlets/purl/1028778.
@article{osti_1028778,
title = {Single P-N junction tandem photovoltaic device},
author = {Walukiewicz, Wladyslaw and Ager, III, Joel W. and Yu, Kin Man},
abstractNote = {A single P-N junction solar cell is provided having two depletion regions for charge separation while allowing the electrons and holes to recombine such that the voltages associated with both depletion regions of the solar cell will add together. The single p-n junction solar cell includes an alloy of either InGaN or InAlN formed on one side of the P-N junction with Si formed on the other side in order to produce characteristics of a two junction (2J) tandem solar cell through only a single P-N junction. A single P-N junction solar cell having tandem solar cell characteristics will achieve power conversion efficiencies exceeding 30%.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 18 00:00:00 EDT 2011},
month = {Tue Oct 18 00:00:00 EDT 2011}
}

Works referenced in this record:

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journal, February 2006


III–V compound multi-junction solar cells: present and future
journal, January 2003


Band Anticrossing in GaInNAs Alloys
journal, February 1999


29.5%‐efficient GaInP/GaAs tandem solar cells
journal, August 1994


Unusual properties of the fundamental band gap of InN
journal, May 2002


Peaked Schottky‐barrier solar cells by Al‐Si metallurgical reactions
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Valence‐band discontinuities of wurtzite GaN, AlN, and InN heterojunctions measured by x‐ray photoemission spectroscopy
journal, April 1996


Characterization and analysis of InGaN photovoltaic devices
conference, January 2005


Synthesis of GaNxAs1−x thin films by pulsed laser melting and rapid thermal annealing of N+-implanted GaAs
journal, July 2003


Schottky‐barrier solar‐cell calculations
journal, February 1974


The role of the interfacial layer in Schottky barrier solar cells
journal, May 1979


Increasing the Efficiency of Ideal Solar Cells by Photon Induced Transitions at Intermediate Levels
journal, June 1997


Electrical characteristics of InAsSb/GaSb heterojunctions
journal, July 1986


Growth of InN and InGaN on Si substrate for solar cell applications
conference, January 2004


Fermi-level stabilization energy in group III nitrides
journal, April 2005


Projected performance of three- and four-junction devices using GaAs and GaInP
conference, January 1997


Multicolor Light-Emitting Diodes Based on Semiconductor Nanocrystals Encapsulated in GaN Charge Injection Layers
journal, June 2005


In 1− x Ga x As‐GaSb 1− y As y heterojunctions by molecular beam epitaxy
journal, August 1977


Superior radiation resistance of In1−xGaxN alloys: Full-solar-spectrum photovoltaic material system
journal, November 2003


Design, Growth, Fabrication and Characterization of High-Band Gap InGaN/GaN Solar Cells
conference, May 2006


n ‐indium tin oxide/ p ‐indium phosphide solar cells
journal, June 1977


Small band gap bowing in In1−xGaxN alloys
journal, June 2002